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Avaya Configuring ATM Services User's Manual

1. 15 24 45 45 24 24 15 24 24 24 132 11 03 95 11 45 16 984 INFO SLOT 5 ATM Code Line 1405101 vpi vci 0 35 has been activated 133 11 03 95 11 45 16 984 INFO SLOT 5 ATMINTE Code Port 1 virtual channel VPI 0 VCI 35 call reference 9 activated 134 11 03 95 11 45 16 984 DEBUG SLOT 5 ATM SIG Code ATM Layer Manager Inbound VC MOD RESPONSE Message FSM atmlmst cing vmr call ref 9 State VC MOD MSG WAIT Event VC MOD RSP ATM Layer Manager Outbound Open Confirm 135 11 03 95 11 45 16 984 DEBUG SLOT 5 ATM IF Code EC opened LE 802 3 Mcast VCC 0 35 136 11 03 95 11 45 16 988 DEBUG SLOT 5 ATM IE Code EC API msg LE Resolve Response from LEC 3 UserHandle 15592560 TransId O0edec 137 11 03 95 11 45 17 031 DEBUG SLOT 5 ATM SIG Code ATM Layer Manager Inbound Signalling Connection Indication ATM Layer Manager Outbound Connection Status Reguest 138 11 03 95 11 45 17 035 DEBUG SLOT 5 ATM SIG Code ATM Layer Manager Inbound ATM VC Reserve Respons FSM atmlmst ced rr call ref 10 State RESERVE WAIT Event ATM VC RESERVE RSP MS 139 11 03 95 11 45 17 035 INFO SLOT 5 ATM Code Line 1405101 vpi vci 0 36 has been activated 140 11 03 95 11 45 17 039 INFO SLOT 5 ATMINTE Code Port 1 virtual channel VPI 0 VCI 36 call reference 10 activated 141 11 03 95 11 45 17 039 DEBUG SLOT 5 ATM SI
2. sse 8 6 Setting the Maximum Retry Count sesenta 8 6 Setting the Aging Time sssssssssssssssseseeeene enne nennen 8 6 Setting the Forward Delay Time sssssssssssseseeeeeeeenneeen nennen 8 6 Defining the Expected LE ARP Response Time eee 8 7 Setting the Path Switching Delay 8 7 Modifying Flush Protocol Variables AA 8 8 Enabling or Disabling the Flush Protocol eeeeeemm 8 8 Setting the Flush Timeout sessssssssssseseseeeeee enne enirn nnne ener nnne 8 8 Entering a EEGS ATM Address ete in bee bir e ed eden ugeet 8 9 Wh ere to Go Next Ae ettet t ted Re Ee 8 9 xii 114056 Rev A Chapter 9 Customizing Signaling Enabling or Disabling Signaling 44 eeeeeeeeeeeeeeee eee eee een nenene een teen nn 9 2 Assigning a Protocol Standard sse 9 2 Specifying the Maximum Number of SVC Applications ssessseeseees 9 2 Setting Connection Thresholds sss nennen 9 3 Defining Maximum Point to Point Connections sse 9 3 Defining Maximum Point to Multipoint Connections sees 9 3 Defining Maximum Parties in Multipoint Connections eee 9 3 Setting the Minimum Memory Threshold sse 9 3 Setting Signaling Timers AEN 9 4 Defining Retransmissions esssesseseseeeneene enne nennen 9 9 Setting the Number of Allowable Rest
3. call ref 8 Event ATM VC RESERVE RSP MSG ATM Sample Log State RESERVE WAIT 24 15 24 45 45 24 24 114056 Rev A C 13 Configuring ATM Services 110 11 03 95 11 45 16 058 INFO SLOT 5 ATM Code 8 Line 1405101 vpi vci 0 34 has been activated 111 11 03 95 11 45 16 058 INFO SLO 5 ATMINTE Code 15 Port 1 virtual channel VPI 0 VCI 34 call reference 8 activated 112 11 03 95 11 45 16 058 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound VC MOD RESPONSE Message FSM atmlmst ced vmr call ref 8 State VC MOD MSG WAIT Event VC MOD RSP 113 11 03 95 11 45 16 062 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Outbound Connect Response 114 11 03 95 11 45 16 070 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Signalling Connection Status Indication FSM atmlmst ced tcsi call ref 8 State NETWORK WAIT Event AMUIAMTCNSTIND ATM Layer Manager Outbound Open Indication 115 11 03 95 11 45 16 070 DEBUG SLO 5 ATM LE Code 45 EC Open call indicate Control VCC for LEC 43 VP VC 0 34 116 11 03 95 11 45 16 070 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound OPEN VC RESP 117 11 03 95 11 45 16 082 DEBUG SLO D ATM LE Code 45 EC Received LE JOIN Response pkt
4. 8 4 114056 Rev A Customizing LAN Emulation Clients Specifying a Maximum Unknown Frame Time The unknown frame time specifies the maximum amount of time allowed to send the number of unknown frames defined in the Unknown Frame Count see the previous section By default the LEC can send the allowable number of unknown frames for a maximum of 1 second This means that using the default values a LEC can send up to one unknown frame within 1 second for any given MAC address without having to initiate the address resolution protocol to resolve that MAC address However you can specify up to 60 seconds for the maximum unknown frame time Site Manager Max Unknown Frame Time page A 36 Modifying LANE Timers and Retry Counters You can modify several timers and counters for each LEC These timers and counters include the e Control Timeout e VCC Timeout Period e Maximum Retry Count e Aging Time e Forward Delay Time e Expected LE ARP Response Time e Path Switching Delay Setting the Control Timeout The Control Timeout defines the timeout period used for most request response control frame interactions The default timeout is 5 seconds but you can set this value from 5 through 32767 seconds Site Manager Control Timeout page A 35 114056 Rev A 8 5 Configuring ATM Services Enabling or Disabling the VCC Timeout Period When you enable the VCC Timeout Period the default setting
5. The SCR is essentially a future average By setting the SCR you are specifying the cell rate over time to which you want the VC to conform To be useful the SCR must not exceed the PCR e If you know the user average rate set the SCR about 10 percent higher than this value e ATM FRE2 ILI pairs require a minimum SCR value of 300 cells s PVCs may fail to operate with SCR values less than 300 cells s When setting the SCR for ATM ARE ILI pairs and Model 5780 ATM routers keep the following in mind The SCR maps directly to the MCR e The MCR provides guaranteed bandwidth for PVCs and control VCs while allowing sufficient bandwidth for SVCs to operate 114056 Rev A Customizing Signaling and ILMI Control VCs To be useful the SCR must not exceed the PCR If you know the user average rate set the SCR about 10 percent higher than this value ATM ARE ILI pairs and Model 5780 ATM routers require a minimum SCR value of 128 cells s VCs may fail to operate with SCR values less than 128 cells s ATM ARE ILI pairs and Model 5780 ATM routers allow you to enter an SCR value of 0 Entering 0 for the SCR turns off this function and specifies that the ATM router use best effort for SCR The E 3 framing mode setting affects the maximum SCR setting By default the SCR is set to 4716 cells s Table 11 2 lists the valid ranges for each Bay Networks ATM router Table 11 2 Valid SCR Ranges
6. LLC SNAP Encapsulation When the same virtual circuit carries several protocols select LLC SNAP encapsulation LLC SNAP encapsulation attaches an LLC SNAP header before the PDU This header includes information that the receiver needs to properly process the incoming PDU For bridged PDUs this header also includes the type of the bridged media NULL Encapsulation VC Based Multiplexing In NULL encapsulation the carried network protocol is identified implicitly by the virtual circuit connecting the two ATM stations Because each protocol must travel over a separate virtual circuit there is no need to include explicit multiplexing information in the payload of the PDU This means that the bandwidth requirements and processing overhead remain minimal You can either manually configure the carried protocol or let the signaling procedures negotiate it dynamically during call establishment NULL encapsulation cells do not receive a header in a routed environment In a bridged environment the content of the PDU itself includes the necessary information for bridging the multiplexed protocols 114056 Rev A Configuring ATM Services Encapsulation Rules for PVCs How you assign data encapsulation to individual PVCs depends somewhat on the data encapsulation type you have assigned to the service record that contains those PVCs Table 2 2 provides suggestions for assigning data encapsulation to PVCs and Hybrid PVCs that reside on these
7. MBS value in cells 48 bytes cell for example 4608 bytes default 48 bytes cell 96 cells ATM0016A For additional information about traffic parameters refer to ATM Traffic Parameters in Chapter 2 Site Manager Xmit Burst Size cells page A 59 114056 Rev A Customizing Signaling and ILMI Control VCs Modifying the Maximum AAL CPCS SDU Size The maximum AAL CPCS SDU value defines the maximum packet size you intend the control VC to transmit or receive Setting the Transmit SDU Size We suggest that you accept the default value of 4608 bytes for maximum AAL CPCS SDU size that the control VC supports in the transmit direction Most packet sizes fall well within this limit However you can set this value from 1 through 65535 bytes Site Manager Maximum AAL CPCS Transmit SDU Size page A 59 Setting the Receive SDU Size We suggest that you accept the default value of 4608 bytes for maximum AAL CPCS SDU size that the control VC supports in the receive direction Most packet sizes fall well within this limit However you can set this value from 1 through 65535 bytes Site Manager Maximum AAL CPCS Receive SDU Size page A 60 114056 Rev A 11 7 Configuring ATM Services Where to Go Next Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General AT
8. Tables Valid Data Encapsulation Types for PVCs and SVCS o 1 3 Supported Protocols ccccceeceeeececeeeeeeeeceeeeeeeeaaeseeeeeeseaeseeeeeeessaeeeseaeees 1 6 Maximum Bandwidth eee nennen 2 6 Assigning Data Encapsulation to Individual PVCS 2 12 Locating and Using Protocol Menus een 2 20 Determining an Appropriate Framing Mode AAA 5 7 Defining a Service Record eee eeee eee eee eee teen nen 6 5 Valid PCR Ranges eee eee eee nenene 7 4 Valid SCR RANGES erret EEEE 7 6 Signaling Timer Descriptions 9 4 Valid PGR Ranges nett Loi qne Vea ied ue ce eto Let 11 3 Valid SCR Ranges EE etes 11 5 Signaling Timer Descriptions 12 2 Finding Attribute Categories 2 eee eee eee eee eee enter nen A 3 Finding Attribute Categories eee eee eee eee eee een nn A 4 Initial ATM Signaling Config Window eee eee eee een B 1 ATM Service Records List Window sene B 1 ATM Service Record Parameters Window onen B 2 ATM Virtual Channel Link Window eee eeee eee nen B 2 ATM Virtual Channel Link Parameters Window eee B 2 LAN Emulation Parameters Window eee B 3 ATM Interface Attributes Window eem B 3 ATM FRE2 Line Parameters AA B 4 ATM FRE2 Physical Attribute Parameters een B 4 ATM ARE Line Parameters eseeeeessseeeeeeeenenenen nennt B 4 ATM Signaling Parameters Window seen B 5 ATM Control V
9. customizing control VCs ILMI 11 1 to 11 7 signaling 11 1 to 11 7 ILMI 10 1 to 10 3 LE clients 8 1 to 8 9 line attributes ATM ARE 5 5 to 5 8 ATM FRE2 5 1 to 5 4 Model 5780 5 5 to 5 8 PVCs 7 1 to 7 8 SAAL 12 1 to 12 5 D data encapsulation assigning service record 6 5 methods of 2 9 selecting 2 10 See also Data Encapsulation Type Data Encapsulation Type assigning PVCs 7 8 service record 6 5 parameter description PVCs A 31 service record A 20 data frame size setting 8 3 Data Link Connection timer See T309 Data Link Disconnect timer See TDisc Data Path Enable enabling disabling 5 5 parameter description A 10 Data Path Notify enabling disabling 5 1 parameter description A 6 114056 Rev A Index 3 Configuring ATM Services Data Path Notify Timeout parameter description A 6 A 10 specifying ATM ARE 5 6 ATM FRE2 5 2 Model 5780 5 6 defaults parameter B 1 to B 7 Drop Party Sent Timer See T398 DS3 Line Build Out parameter description A 12 specifying 5 8 DS3 Scrambling parameter description A 13 turning on off 5 8 E Edit ATM Connector window using A 1 editing IP interface 3 5 ELAN Name See Emulated LAN Name Emulated LAN Name entering 6 6 8 2 parameter description A 23 A 34 Emulated LAN Type assigning 8 3 defining 6 6 parameter description A 24 A 33 Enable ATM Signaling enabling disabling 6 1 parameter description A 15 Enable parameter ad
10. A 66 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters IP Adjacent Host Address Configuration Manager gt Protocols gt IP gt Adjacent Hosts None Any valid IP address Specifies the IP address of the device that you want to configure as an adjacent host Enter the IP address in dotted decimal notation 1 3 6 1 4 1 18 3 5 3 2 1 6 1 3 Next Hop Interface Addr Configuration Manager gt Protocols gt IP gt Adjacent Hosts 0 0 0 0 Any valid IP address Specifies the IP address of the router s network interface to the adjacent host Enter the IP address in dotted decimal notation 1 3 6 1 4 1 18 3 5 3 2 1 6 1 4 MAC Address Configuration Manager gt Protocols gt IP gt Adjacent Hosts None Depend on the data link you have selected Specifies the MAC address of the adjacent host This value can be A 48 bit physical address A 64 bit SMDS address e An ATM VPI VCI pair for ATM PVCs The ATM address of the ATM interface for ATM SVCs Enter the MAC address as a 12 digit hexadecimal number canonical format a 32 digit hexadecimal number switched multimegabit data services SMDS a VPI VCI pair for example 0 32 or a 40 digit ATM address for example 390000000
11. Configuring ATM Services Router Software Version 11 0 Site Manager Software Version 5 0 Part No 114056 Rev A August 1996 m Bay Networks a Bay Networks 4401 Great America Parkway 8 Federal Street Santa Clara CA 95054 Billerica MA 01821 Copyright 1988 1996 Bay Networks Inc AI rights reserved Printed in the USA August 1996 The information in this document is subject to change without notice The statements configurations technical data and recommendations in this document are believed to be accurate and reliable but are presented without express or implied warranty Users must take full responsibility for their applications of any products specified in this document The information in this document is proprietary to Bay Networks Inc The software described in this document is furnished under a license agreement and may only be used in accordance with the terms of that license A summary of the Software License is included in this document Restricted Rights Legend Use duplication or disclosure by the United States Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Notice for All Other Executive Agencies Notwithstanding any other license agreement that may pertain to or accompany the delivery of this computer software the rights of the United States Government regarding its use reproduction
12. Configuring ATM Services Setting the ILMI Get Timer The ILMI Get Request timer defines the amount of time allowed for the circuit to receive a GET RESPONSE message after sending a GET_REQUEST message By default the circuit waits 3 seconds for a response However you can set this timer to a value from 1 through 120 seconds Site Manager ILMI Get Timer page A 54 Setting the ILMI Get Retry Count The ILMI Get Retry Count specifies the number of times the circuit can retransmit the ILMI GET REOUEST message before it considers the link down By default the circuit can retransmit three 3 ILMI GET REOUEST messages However you can set the number of retries to a value from 1 through 100 Site Manager ILMI Get Retry Count page A 54 Setting the ILMI Get Next Timer The ILMI Get Next Reguest timer defines the amount of time allowed for the circuit to receive a GET NEXT RESPONSE message after sending a GET NEXT REQUEST message By default the circuit waits 3 seconds for a response However you can set this timer to a value from 1 through 120 seconds Site Manager ILMI Get Next Timer page A 55 Setting the ILMI Get Next Retry Count The ILMI Get Next Retry Count specifies the number of times the circuit can retransmit the ILMI GET NEXT REQUEST message before it considers the link down By default the circuit can retransmit three 3 ILMI GET NEXT REQUEST messages However you can set the num
13. Go to the next section to define a service record on the circuit 1 2 114056 Rev A Starting ATM Defining a Service Record The Configuration Manager allows you to add service records for a specific data encapsulation type Depending on the data encapsulation type you choose the Configuration Manager also allows you to select a permanent virtual circuit PVC or switched virtual circuit SVC connection type for that service record Caution You cannot edit the Data Encapsulation Type or Virtual Connection Type parameters once you assign them to a service record However you can edit the Data Encapsulation Type for individual PVCs Table 1 1 identifies which data encapsulation types you can apply to permanent and switched virtual circuits Table 1 1 Valid Data Encapsulation Types for PVCs and SVCs Data Encapsulation Type Permanent Virtual Circuit Switched Virtual Circuit LANE v LLC SNAP v v NLPID v v NULL v v Note For an explanation of the different data encapsulation types and rules for assigning data encapsulation refer to Chapter 2 Adding a Service Record for PVCs To add a service record for permanent virtual circuits 1 Click on Service Attributes in the Edit ATM Connector window The ATM Service Records List window opens 2 Click on Add The ATM Service Record Parameters window opens 114056 Rev A Configuring ATM Services Note If you disable
14. In a Bay Networks router Intelligent Link Interface ILD pairs provide access and processing An ILI pair consists of a link module and a processor module that work together to process and transmit information over a network Bay Networks currently provides the following ATM ILI pairs e An ATM FRE2 link module in conjunction with a Fast Routing Engine FRE2 processor e An ATM Routing Engine ARE link module in conjunction with an ATM Routing Engine processor In addition Bay Networks provides a hub version of the ATM ARE ILI pair the Model 5780 ATM router This single hub module incorporating the ILI functions of both the link module and processor module resides in a System 5000 chassis Refer to Using the Model 5780 ATM Router for more information Both ILI pairs and the Model 5780 ATM router are functionally similar and you configure them in much the same way Unless otherwise noted the remainder of this guide treats both ILI pairs and the Model 5780 as if they were the same Depending on the ATM router type you can connect directly to an ATM network over any of the following physical interfaces e Synchronous Optical Network Synchronous Digital Hierarchy SONET SDH e Digital Service level 3 DS 3 e E 3 the European equivalent of the North American DS 3 This means that any of the ATM routers convert variable length packets into uniform 53 byte cells for transmission over the ATM network 114056 Rev A 2
15. Instructions MIB Object ID Expected LE_ARP Response Time Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 3 1 through 30 Defines the amount of time in seconds that the LAN emulation client expects an ARP request and ARP response cycle to take The LAN emulation client uses this value during retries and verifications Accept the default 3 or enter a value from 1 through 30 1 3 6 1 4 1 18 3 5 9 5 20 1 1 1 Flush Timeout Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 4 1 through 4 Defines the amount of time in seconds that the LAN emulation client waits to receive a flush response after sending a flush request before it takes recovery action by switching back to the BUS Accept the default 4 or enter a value from 1 through 4 1 3 6 1 4 1 18 3 5 9 5 20 1 1 18 Path Switching Delay Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 6 1 through 8 Defines the amount of time in seconds that the LAN emulation client waits after sending a frame over an old VCC before it switches to a new VCC this applies to multicast and data direct VCCs You can use this parameter to bypass the Flush protocol that is when you disable the Flush Protocol parameter the data for a specific MAC address automatically begins flowing over a new VC when the Path Switching Delay time elapses Accept the default 6 or enter a value from 1 through 8 1 3 6 1
16. Line 1405101 Circuit 3 ATM LEC ARP Table modified for MAC 0x0000a20d72e2 Old VC 0 0 vcid 0 New VC 0 37 vcid 14 KKK KKK KK KKK KK AA AA KA XK AK KK KK KKK KK KKK ck KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK This LEC receives a flush response and modifies the LE ARP cache so that packets destined for the MAC address 00 00 a2 0d 72 e2 use VPI VCI 0 37 KKK KKK KK KKK KKK KK KK KK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KKK KK KK 114056 Rev A C 27 A AAL CPCS Receive SDU Size parameter description control VC A 60 PVC A 31 setting control VCs 11 7 PVCs 7 8 AAL CPCS SDU Size modifying control VCs 11 7 PVCs 7 8 AAL CPCS Transmit SDU Size parameter description control VCs A 59 PVCs A 30 setting control VCs 11 7 PVCs 7 8 accessing ATM networks PVCs 2 13 to 2 16 SVCs 2 18 ATM windows A 1 Add Party Sent timer See T399 adding ATM circuit 1 2 ATM to the router 1 2 to 1 9 PVCs 1 8 service records Classical IP 1 4 LANE 1 5 PVC 1 3 Index addresses assigning 6 3 to 6 4 autogenerating 6 2 to 6 3 parts of 6 3 Adjacent Host X 121 Address parameter A 68 adjacent hosts defined 3 5 Administrative State parameter description A 14 A 27 service record assigning 7 3 setting 6 1 Aging Time parameter description A 37 setting 8 6 ARP Server ATM Address Network Prefix parameter A 65 A 69 ARP Server ATM Address User Part parameter A 66 A
17. This sample network Figure 2 10 consists of all the components necessary to fully operate an ATM network Depending on how you configure the individual hardware and software components you can run standard ATM PVCs and SVCs configure logical IP subnets using RFC 1577 and create virtual LANs VLANs using LAN emulation 2 22 114056 Rev A Understanding ATM Concepts ATM LAN Emulation Domain1 gt Centillion 100 Switch Centillion 100 acting as LECS Switches IG IGIG Pg sie e B Il e P a i LES and BUS acting as LECs 8 B gt EE i i EENG ATM Control Software i Optivity d LAN s d M Sa H n S k Mi KM Wi Mi Mi ATM Router Backbone Node Y LattisCell Switches B L u ATM LAN Emulation o HHHH Domain 2 B PS M Pd L x p N K S EtherCell EtherCell EV TF ET DIE EC ELE oomMoooooooon Control Software Connection IISP Connection ATM NNI ATM NNI Connection EEN ATM UNI Connection amp Connections to Legacy LANs SS ATM0036A Figure 2 10 Sample ATM Network 114056 Rev A 2 23 Configuring ATM Services Hardware Dev
18. tmInterfaceDebug 1405101 6 2 1 g wfAtmLecConfigEntry 29 3 wfAtmLecConfigEntry wflecDebugLevel 3 15 2 1 log ftwifd eATMINTF eATM eATM SIG eATM LE 1 11 03 95 11 44 48 652 INFO SLOT 5 ATMINTE Code 11 Coprocessor image atmc exe loaded on link module 26334 bytes 2 11 03 95 11 44 48 660 DEBUG SLO 5 ATMINTE Code 167 Port 1 framer up id type 0x30 3 11 03 95 11 44 48 660 INFO SLO 5 ATMINTE Code 14 Port 1 framer device initialization complete 114056 Rev A C 1 Configuring ATM Services 4 11 03 95 11 44 49 617 Service initializing 5 11 03 95 11 6 11 03 95 11 44 50 605 Port 1 not verified with diagnostic 44 50 609 INFO WARNING DEBUG ATMizer driver control structures RX anchor 0x80000080 TX anchor 0x800000a0 7 11 03 95 11 8 11 03 95 11 9 11 03 95 11 10 11 03 95 Port 1 cfg ix Port 1 service 12 11 03 95 Port 1 13r 11 03 95 1 11 11 03 95 11 44 54 191 RX ATMizer image download complete 44 54 480 X ATMizer image download complete 44 54 480 Port 1 SAR device initialization complete available cfg resets mib 1 44 56 335 14 11 03 95 1 15 11 03 95 Port 1 Slot 5 ATM Lan 1 44 57 132 Slot 5 ATM Service provided DEBUG DEBUG INFO 11 44 54 484 DEBUG 1 44 54 484 INFO 11 44 54 488 DEBUG INFO Emulation provided INFO 11 44 57 601 INFO data
19. ATM Interface Parameter Descriptions A 14 ATM Service Record Parameter Descriptions A 17 ATM Virtual Channel Link Parameter Descriptions A 25 LAN Emulation Parameter Descriptions eee A 32 ATM Signaling Parameter Descriptions sssssssseeenennenn nn A 40 ATM ILMI Signaling Parameter Descriptions A 52 Signaling and ILMI Control VC Parameter Descriptions eee A 56 xiv 114056 Rev A ATM Signaling AAL Parameter Descriptions A 61 ATMARP Configuration Parameter Descriptions A 65 Adjacent Host Parameter Descriptions 4 ee e 0020 eeeeee0eee ee eee eee een nn A 66 IP Interface Parameter Descriptions ssessssesesenenenneen nenne A 69 Appendix B Site Manager Default Settings for ATM ATM FRE2 Eine Parameters 4 eget rece att lun a C Hace Cer Re teat B 4 ATM ARE Line Parameters eee eee eee nenene K nnns trennen sin nnne nnns B 4 Appendix C ATM Sample Log Index 114056 Rev A XV Figure 2 1 Figure 2 2 Figure 2 3 Figure 2 4 Figure 2 5 Figure 2 6 Figure 2 7 Figure 2 8 Figure 2 9 Figure 2 10 Figure 3 1 Figure 3 2 Figure 4 1 Figure 6 1 Figure 9 1 Figure 12 1 Figure A 1 Figure A 2 Figure A 3 Figure A 4 Figure A 5 Figure A 6 Figure A 7 114056 Rev A Figures ATM Cee career steers renee EE 2 1 ATM Cell Header AAA 2 2 ATM Transmission Components sss 2 4 B ISDN
20. ATM Layer Manager Inbound Register Reguest ATM Layer Manager Outbound Register Confirm 59 11 03 95 11 44 59 328 TRACE SLOT 5 ATM_LE Code 35 Line 1405101 Circuit 3 ATM LEC Control SAP register confirm for reg id 0 Line 1405101 Circuit 3 ATM LEC Control SAP register confirm for reg id 1 60 11 03 95 11 44 59 328 DEBUG SLOT 5 ATM_LE Code 45 EC API msg LE Create Response from LEC 3 UserHandle 15592560 TransId 0000000 61 11 03 95 11 44 59 332 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound OPEN VC REQ 62 11 03 95 11 44 59 332 TRACE SLOT 5 ATML EC Called SIG_Open_VC cct 3 call_ref 3 sig_id 1 EC Transitioning into the ATM_LEC_LECSCONNECT state for cct 3 Line 1405101 Circuit 3 ATM LEC MCast SAP register confirm for reg_id 2 Line 1405101 Circuit 3 ATM LEC MCast SAP register confirm for reg_id 3 E Code 41 KKK KKK KK KK KK KK KK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK The LAN emulation code is requesting that the signaling code open up a VCC to the LECS for the Config Direct VCC KKK KK KKK KKK KK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KKK KK KKK KK KKK KK KK 114056 Rev A C 7 Configuring ATM Services 63 11 03 95 11 44 59 332 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound ATM VC Re
21. ATM Router Range Cells s ATM FRE2 OC 3 SONET SDH ILI pairs 300 through 365566 ATM ARE OC 3 SONET SDH ILI pairs 0 128 through 353207 Model 5780 0 128 through 353207 ATM ARE DS 3 ILI pairs 0 128 through 96000 ATM ARE E 3 ILI pairs G832 Framing Mode 0 128 through 80000 ATM ARE E 3 ILI pairs G751 Framing Mode 0 128 through 72000 For additional information about traffic parameters refer to ATM Traffic Parameters in Chapter 2 Site Manager Xmit Sustainable Cell Rate cells s page A 57 114056 Rev A Configuring ATM Services Setting the MBS For ATM FRE2 ILI pairs the MBS is the maximum length of a cell stream allowed on a particular VC The MBS specifies the maximum number of sequential cells allowed on a VC before that VC must relinquish bandwidth to other VCs waiting to transmit This burst occurs at or close to the Peak Cell Rate When setting the MBS we suggest that you select a value larger than the largest packet your PVC or Control VC can transmit that is the Maximum AAL CPCS Transmit SDU size For example if your VC accepts packets that are less than 2358 bytes long PVC default set your MBS value between 45 and 50 cells Note ATM ARE ILI pairs ignore the maximum burst size By default the MBS is set to 40 cells However you can adjust this value from 1 through 65535 cells AS a guideline use this formula to determine your MBS value Maximum Packet Size in bytes
22. CAC traffic management services as defined within the ATM Forum ATM User Network Interface Specification Version 3 0 Role of the MCS The MCS software allows LANE services to operate over an ATM network The MCS software provides the following LANE services e Virtual LAN definition and management MAC address to ATM address resolution for attached LANE clients e Broadcast and multicast support for attached LANE clients Role of Optivity LAN 7 0 The Optivity LAN 7 0 software provides management for any switch including the EtherCell LattisCell and switch modules in the System 5000 link or client in the ATM network Optivity LAN 7 0 obtains information from the CMS MCS or switches to display real time views of the entire ATM network These views provide the network manager with ATM monitoring and control information at both the switch and port level Refer to Using Optivity LAN 7 0 for UNIX and associated release notes for more information about using the Optivity LAN 7 0 software in an ATM network 114056 Rev A 2 27 Configuring ATM Services For More Information For more information about ATM refer to the following documents ATM Forum ATM User Network Interface Specification Version 3 0 September 1993 ATM Forum LAN Emulation Over ATM Version 1 0 January 1995 Bellcore Document SR NWT 001763 Issue 1 Preliminary Report on Broadband ISDN Transfer Protocols December 1990 FA NWT 001109 Broad
23. Dest LAN 00 00 a2 0d 72 e2 Src ATM Address 39000000000000000000000000 0000a20e9fca 00 Sco LAN gt EC got reverification response for dest 00 00 a2 0d 72 e2 on LEC 3 EC Received one of our LE ARP Responses back for LEC 3 EC Control Packet Opcode ARP Req_Type RESPONS Status SUCCESS 183 11 03 95 11 45 18 070 DEBUG SLOT 5 ATM_LE Code 45 Transaction_Id 00000000 Requestor LECID 0050 Flags 0000 Lan Type 802 3 Max Frame Size Unspec Targ ATM Address 39000000000000000000000000 0800201a42c4 a9 Dest LAN ff ff ff ff ff ff Src ATM Address 39000000000000000000000000 0000a20e9fca 00 sro LAN 114056 Rev A C 25 Configuring ATM Services LEC got reverification response for dest ff ff ff ff ff ff on LEC 3 KKK KKK KK KKK KK KKK KK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KKK KK KKK KK KK KK KKK This LEC completes the verification of its LE ARP cache for MAC addresses ff ff ff ff ff ff and 00 00 a2 0d 72 e2 KKK KK KKK ck ck ck KK AA KKK KKK KKK KKK KKK KKK ck kk Ck Ck AXA kk KKK KKK KKK KKK KKK KKK KK KKK KK KK 184 11 03 95 11 45 22 054 TRACE SLOT 5 ATM_LE Code 41 EC LE ARP checking timed out reverifies for LEC 3 185 11 03 95 11 45 22 406 DEBUG SLOT 5 ATM_LE Code 42 Line 1405101 Circuit 3 ATM LEC ARP Table modified for MAC 0x0000a20d72e2 Old VC 0 35 vcid 1
24. LE Config Response from LEC 3 UserHandle 15592560 TransId 00ef6ee 81 11 03 95 11 45 10 925 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound SSCOP Status Indication SSCOP Status Indication su 0 ev 3 ui 3 sscf 3 sscop 3 1i 3 82 11 03 95 11 45 10 925 INFO SLO 5 ATM SIG Code 5 Line 1405101 ATM SSCOP active 83 11 03 95 11 45 10 925 DEBUG SLO 5 ATM SIG Code 24 SSCOP Status Indication PROT ST UP KKK KK KKK AAA AA AA AA KA K AK KKK KKK KKK KKK KKK Ck AAA AA KKK KK KK KKK KKK KKK KK KK KKK KK KK SSCOP becomes operational again Switched VCs can now open successfully KKK KKK KK KKK KK KKK KK KKK KK KK KK KKK KKK KKK KKK KKK KKK KKK KK KKK KKK KKK KKK KK KK KK KK KK 84 11 03 95 11 45 13 929 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound OPEN VC REQ 85 11 03 95 11 45 13 929 TRACE SLO 5 ATM_LE Code 41 EC Called SIG_Open_VC cct 3 call_ref 6 sig_id 1 86 11 03 95 11 45 13 929 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound ATM VC Reserve Respons FSM atmlmst cing rr call ref 6 State RESERVE WAIT Event ATM VC RESERVE RSP MS ATM Layer Manager Outbound Connect Request 87 11 03 95 11 45 14 949 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Signalling Connection Status Indication 88 11 03 95 11 45 14 976 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manag
25. See T322 Support Source CD xxviii Index 10 114056 Rev A Sustainable Cell Rate described control VCs 11 4 PVCs 7 5 setting control VCs 11 4 PVCs 7 5 See also Xmit Sustainable Cell Rate SVC applications specifying number of 9 2 SVC Inactivity Timeout parameter description ATM ARE A 11 ATM FRE2 A 7 specifying ATM ARE 5 6 ATM FRE2 5 2 Model 5780 5 6 SVC Inactivity Timeout Enable enabling disabling ATM ARE 5 6 ATM FRE2 5 2 Model 5780 5 6 parameter description ATM ARE A 11 ATM FRE2 A 6 Model 5780 A 11 SVCs access methods 2 18 and service records 2 8 encapsulation methods 2 9 to 2 11 T T303 parameter description A 44 setting 9 4 T308 parameter description A 45 setting 9 4 T309 parameter description A 45 setting 9 5 Index T310 parameter description A 46 setting 9 5 T313 parameter description A 46 setting 9 5 T316 parameter description A 47 setting 9 6 T316c parameter description A 48 setting 9 6 T322 parameter description A 49 setting 9 7 T398 parameter description A 50 setting 9 8 T399 parameter description A 50 setting 9 8 TDisc parameter description A 49 setting 9 7 thresholds connection 9 3 timers modifying ILMI 10 1 to 10 3 signaling 9 4 to 9 8 See also specific timer traffic parameters modifying control VCs 11 2 PVCs 7 3 transmission path defined 2 4 114056 Rev A Index 1 1 Configuring ATM Services
26. Setting the SCR uie tI tiep ap cat dot EO Ea ede 11 4 Setting the MBS c ah actitud pe Seine Rant 11 6 Modifying the Maximum AAL CPCS SDU Size sse 11 7 Setting the Transmit SDU Size ssssssssssssssseseeeeeennneee eren 11 7 Setting the Receive SDU Size eee eee een nee tenente 11 7 Where to Go Next 1 teer rt ee e ae b sd e dv tec ade 11 8 Chapter 12 Customizing SAAL Enabling or Disabling SAAL sssssssssssesseeeeen ener nennen nenne 12 2 Defining the Link Connection Arbitration 12 2 Modifying SAAL Timers ciues etd nitet rx see aae oett da adea ote d cada 12 2 is POU VANGE sesira eea EAEE EEE ENEE EREN 12 4 Setting the SSCOP Maximum Connection Control Value ssssssss 12 4 Setting the SSCOP Maximum Poll Data Value seen 12 4 Setting the SSCOP Maximum STAT PDU Value eee eee eee 12 5 Where tO GO NOT iiic e et e et en ge trt Et ee un er be Hes eta aa 12 5 Appendix A Site Manager Parameters Accessing ATM Parameters ccccccecceceeeeececeeeeeseneeceeeneeececeeseseaeeeesnseneeeeeeseneneeeennenaes A 1 Using the Window Path eee eee nennen nn nnne A 1 Using the Menu Path 20 00 ccccceseecceeeseeeneeeeeseceeeeseeeeeeeesesageeseeeeeeeseeseeeeeeeeeeeeseenaeees A 3 ATM Line Parameter Descriptions eee eee eee een A 5 ATM FRE2 Line Details AAA A 5 ATM FRE2 Physical Attributes ssiri iiaiai iaraa aaea enne A 7 ATM ARE Line Details AAA A 9
27. Table 6 1 shows the settings necessary to define a specific service record Table 6 1 Defining a Service Record Service Record Data Encapsulation Type Virtual Connection Type PVC LLC SNAP NLPID or NULL PVC Classical IP LLC SNAP or NULL SVC LANE LANE SVC Assigning the Data Encapsulation Type ATM allows you to choose from four data encapsulation types LANE LLC SNAP NLPID and NULL LANE is the default value when signaling is enabled on the interface LLC SNAP is the default value when signaling is disabled on the interface Each ATM device must encapsulate PDUs before sending them to the SAR sublayer As a general rule you can assign e LLC SNAP or NULL data encapsulation for service records containing PVCs e LLC SNAP data encapsulation for service records containing hybrid PVCs e LANE encapsulation for service records containing SVCs over which you want to run LAN emulation e LLC SNAP or NULL for service records containing SVCs over which you want to run classical IP RFC 1577 Note If you select NULL the router interprets this as virtual channel based multiplexing which is not supported for bridging For additional information about assigning data encapsulation refer to Chapter 2 Site Manager Data Encapsulation Type page A 20 114056 Rev A 6 5 Configuring ATM Services Specifying a Virtual Connection Type A service record can have either permanent virt
28. the LEC may release any unused Data Direct or Multicast Send VCCs after the VCC timeout period expires The ATM drivers provide a VCC timeout period of 20 minutes If you disable the VCC timeout period the LEC does not release any unused Data Direct VCCs Site Manager VCC Timeout Period Enable page A 36 Setting the Maximum Retry Count The Maximum Retry Count is the maximum number of times a LEC can retry an LE_ARP_REQUEST following the original request for any given frame MAC address You can allow either one the default or two retries Site Manager Max Retry Count page A 37 Setting the Aging Time The Aging Time defines the maximum amount of time that a LEC can maintain an entry in its LE ARP cache without having to verify the relationship of that entry By default the LEC maintains entries for 300 seconds However you can set the aging time to a value from 10 through 300 seconds Site Manager Aging Time page A 37 Setting the Forward Delay Time While there are no changes occurring in the network topology the Forward Delay Time defines the maximum amount of time that a LEC can maintain an entry in its LE ARP cache without having to verify the relationship of that entry By default the LEC maintains entries for 15 seconds so long as the network topology does not change However you can set the Forward Delay Time to a value from 4 through 30 seconds Site Manager Forward
29. the state of a call in progress or the Null state if the call reference does not relate to an active call or a call in progress The Status Enquiry Sent timer stops when the circuit receives a STATUS message from the network If the timer expires before the circuit receives a STATUS message the circuit can transmit as many STATUS ENQUIRY messages as specified with the Num Stat Enquiries Permitted parameter see Defining Retransmissions later in this chapter If the circuit still does not receive a response the circuit clears the call TDisc 1 through 180 Defines the SAAL Data Link Disconnect timer value in seconds This internal timer alerts upper layers that the link is down The timer begins if the entire link goes down for any reason When the link goes down the SAAL layer sends a DISCONNECT REQUEST message to the upper layer application manager The SAAL layer sends a disconnect request every time the SAAL Data Link Disconnect timer expires and continues to send this message until the link becomes operational continued 114056 Rev A 9 7 Configuring ATM Services Table 9 1 Signaling Timer Descriptions continued Name Default Range Description T398 4 1 through 24 Defines the Drop Party Sent timer value in seconds This timer applies to multipoint connections only and begins when the circuit sends a DROP PARTY message to a party the receiver of th
30. 0000 Lan Type 802 3 155 11 03 95 11 45 17 179 DEBUG SLOT 5 ATM_LE Code 45 Max Frame Size Unspec Lan Name Targ ATM Address 00000000000000000000000000 000000000000 00 Dest LAN 00 00 a2 0d 72 e2 Src ATM Address 39000000000000000000000000 0000a20e9fca 00 Soc LANISO ck ck ck ck kk Ck kk kk C KA AAA KA Ck KA Ck Sk Ck KA C kk kk ck kk ck kk Ck Sk ck kk kk kk ck kk Ck kk KA ck kk kk ck ck ckckckckckckckck The LEC has sent an LE ARP request out for MAC address 00 00 a2 0d 72 e2 KKK KKK KKK KKK KK KK KK KKK KKK KK KKK KKK ck ck kk CC Ck Ck Ck kk kk kk ck ck KKK KKK KKK KKK KKK KKK ck ck kk 156 11 03 95 11 45 17 187 DEBUG SLOT 5 ATM II EC Received LE ARP Request pkt for LEC 3 Code 45 it EC Control Packet Opcode ARP Reg Type REOUEST Transaction Id 00000001 Requestor LECID 0050 Flags 0000 Lan Type 802 3 Max Frame Size Unspec Targ ATM Address 00000000000000000000000000 000000000000 00 Dest LAN 00 00 a2 0d 72 e2 Src ATM Address 39000000000000000000000000 0000a20e9fca 00 114056 Rev A C 19 Configuring ATM Services Code 45 Lu 157 11 03 95 11 45 17 191 DEBUG SLOT 5 ATM LI Src LAN not for us LEC 43 LEC Received one of our LE ARP Responses back for LEC 43 KKK KKK KK KKK KK AA AA KA ck ck KK KK KKK KKK ck ck ck kk CK Ck Ck kk AA kk kA kk kk kk KKK KKK KKK KKK KK KKK The LES has
31. 2 12 114056 Rev A Understanding ATM Concepts e You must assign a data encapsulation type to hybrid mode PVCs individually using the Site Manager ATM Virtual Channel Link window You cannot assign data encapsulation to a hybrid mode PVC using the service record e When you use the copy function the new PVC uses the data encapsulation type of the existing PVC PVC Access Methods You can set up PVCs to access an ATM network in the following ways e Multiple PVCs per service record e One PVC per service record e Hybrid access PVCs Multiple PVCs Upper layer protocols treat each service record on an ATM network interface as a single access point These protocols use a single network address to send all traffic destined for the network to the ATM network interface Figure 2 6 shows a conceptual drawing of multiple PVCs accessing an ATM network through one service record ATM physical interface SE Upper layer tocol protoco I EC i i AM0018A E mm ee mx a Figure 2 6 Multiple PVCs per Service Record 114056 Rev A 2 13 Configuring ATM Services Of the different methods having multiple PVCs per service record uses network addressing most efficiently and is the easiest to configure Although you need to configure each PVC manually you need only define and associate protocols with the ATM network service record All the PVCs that you configure for a given ATM service record carry the protocols that you se
32. 4 1 18 3 5 9 5 20 1 1 19 A 38 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Flush Protocol Configuration Manager gt Protocols gt ATM gt Service Records gt LEC Enable Enable Disable Enables or disables the Flush protocol on this LE client The Flush protocol ensures that data destined for a particular MAC address arrives in sequence Following a flush request the Flush protocol drops cells with this MAC address while waiting for The flush response for that MAC address The flush timeout to expire for that MAC address If the client receives a flush response for the cell MAC address the cells for this MAC address begin flowing over a new virtual circuit However if the flush timeout expires for this MAC address the cells begin flowing to the BUS When disabled cells containing the same MAC address are dropped while waiting for the Path Switching Delay parameter to time out After the Path Switching Delay time elapses the data automatically begins flowing over a new virtual circuit Accept the default Enable if you want the Flush protocol to operate on this LAN emulation client Select Disable if you do not want the Flush protocol to operate on this LAN emulation client 1 3 6 1 4 1 18 3 5 9 5 20 1 1 25 LE Config Server ATM Address Configurat
33. 70 ARP support 2 20 ATM addresses assigning 6 3 to 6 4 autogenerating 6 2 to 6 3 parts of 6 3 cell described 2 1 switching 2 3 technology 2 1 circuit adding 1 2 concepts 2 1 to 2 5 114056 Rev A Index 1 Configuring ATM Services Control Software CMS 2 26 MCS 2 27 Optivity LAN 2 27 understanding 2 26 data transmission 2 3 enabling 1 1 to 1 9 layers 2 7 AAL 5 2 7 ATM Adaptation Layer AAL 2 7 in protocol reference model 2 6 to 2 7 log C 1 to C 27 parameter defaults B 1 to B 7 sample network 2 22 to 2 27 signaling support 9 1 traffic parameters modifying PVCs 7 3 transmission path defined 2 4 virtual channel defined 2 4 virtual path defined 2 4 windows accessing A 1 ATM Addr Net Prefix entering a value for 6 4 parameter description A 22 ATM Addr User Part entering a value for 6 4 parameter description A 22 ATM ARP parameters ATM ARP Mode A 65 A 69 ATM ARP Mode parameter A 65 A 69 ATM Signaling attributes selecting A 40 window sequence A 40 ATMARP configuring 3 4 Bay Networks CompuServe forum xxviii Customer Service FTP xxvii home page on World Wide Web xxvii InfoFACTS service xxix publications ordering xxiv support programs xxvi Support Source CD xxviii Technical Response Center xxv xxix technical support xxv Broadband Integrated Services Digital Network B ISDN 2 1 Broadcast and Unknown Server described 4 3 BUS Connect State LAN
34. 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 114056 Rev A 5 9 Chapter 6 Customizing ATM Interfaces and Service Records Setting the Interface Administrative State By default the ATM interface is operational Up when you create the circuit However you can set the administrative state to Up or Down at any time When the administrative state is Up traffic can flow over the interface When the administrative state is Down traffic cannot flow over the interface Site Manager Administrative State page A 14 Enabling or Disabling Signaling on an Interface By enabling ATM signaling the default setting you can configure switched features for example SVCs and LAN emulation on the interface If you do not intend to configure any switched features on the interface that is you want the interface to run only PVCs disabling ATM signaling makes additional system resources available Site Manager Enable ATM Signaling page A 15 114056 Rev A 6 1 Configuring ATM Services Autogenerating ATM Addresses You can automatically generate the user part suffix of SVC ATM addresses When autogenerating this portion of the ATM addresses you can use either the ATM hardware MAC address or a MAC address override value as t
35. ARE ILI pairs and Model 5780 ATM routers allow you to enter an SCR value of 0 Entering 0 for the SCR turns off this function The E 3 framing mode setting affects the maximum SCR After you determine the transmission rate of your ATM device set the sustainable cell rate within the range specified under Options For ATM ARE ILI pairs and Model 5780 ATM routers you can enter 0 to turn off this function 1 3 6 1 4 1 18 3 4 23 1 5 1 9 A 58 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Xmit Burst Size cells Configuration Manager gt Protocols gt ATM gt ATM Signaling gt Sig VC or Configuration Manager gt Protocols gt ATM gt ILMI Signaling gt ILMI VC 40 1 through 65535 For ATM FRE2 ILI pairs the Maximum Burst Size is the maximum length of a cell stream on a particular VC The MBS specifies the maximum number of sequential cells allowed on a VC at the peak cell rate before the VC must relinquish bandwidth to other VCs When setting the MBS we suggest that you select a value larger than the largest packet your PVC or Control VC can transmit that is the Maximum AAL CPCS Transmit SDU Size For example if your VC accepts packets that are less than 2358 bytes long PVC default set your MBS value from 45 through 50 cells Set a value in the specified range 1 3 6 1 4 1 18 3 4 23 1 5 1 10 Caution ATM ARE ILI pairs and Mode
36. Accept the default Unspecified if you want the client to obtain the LAN type from the LAN emulation configuration server LECS when it joins an emulated LAN Select IEEE8023 if you want the client to join only Ethernet emulated LANs 1 3 6 1 4 1 18 3 5 9 5 20 1 1 6 Maximum Data Frame Size Configuration Manager gt Protocols gt ATM gt Service Records gt LEC Unspecified Unspecified 1516 Defines the maximum data frame size in octets that this client uses when it joins an emulated LAN Clients that use Automatic configuration mode use this parameter in their LE CONFIGURE REQUEST frames Clients that use Manual configuration mode use this parameter in their LE JOIN REQUEST frames Selecting Manual configuration mode automatically sets the Maximum Data Frame Size to 1516 Accept the default Unspecified if you want the client to obtain the maximum data frame size when it joins an emulated LAN Select 1516 if you want to designate the maximum data frame size that this client can e Send on the Multicast Send VCC Receive on the Multicast Forward VCC Send and receive on Data Direct VCCs 1 3 6 1 4 1 18 3 5 9 5 20 1 1 7 114056 Rev A A 33 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Emulated LAN Name Configuration Manager gt Protocols gt ATM gt Servic
37. Delay Time page A 37 8 6 114056 Rev A Customizing LAN Emulation Clients Defining the Expected LE_ARP Response Time The Expected LE_ARP Response Time defines the amount of time that the LEC expects an ARP request and ARP response cycle to take The LEC uses this value during retries and verifications By default the LEC expects an ARP request and ARP response cycle to take a maximum of 3 seconds However you can set the LE ARP Response Time to a value from 1 through 30 seconds Site Manager Expected LE_ARP Response Time page A 38 Setting the Path Switching Delay The Path Switching Delay defines the amount of time that the LEC waits after sending a frame over an old VCC before it switches to a new VCC this applies to multicast and data direct VCCs You can use the Path Switching Delay to bypass the Flush protocol When you disable the Flush protocol the data for a specific MAC address automatically begins flowing over a new VC when the Path Switching Delay time elapses By default the LEC waits a maximum of 6 seconds after sending a frame over an old VCC before it switches to a new VCC However you can set the Path Switching Delay to a value from 1 through 8 seconds Site Manager Path Switching Delay page A 38 114056 Rev A 8 7 Configuring ATM Services Modifying Flush Protocol Variables The Flush protocol ensures that data destined for a particular MAC address arrives in
38. Enable Options Enable Disable Function Enables or disables ATM signaling on this interface Instructions Accept the default Enable if you want signaling to remain enabled on this MIB Object ID interface Set to Disable if you do not want signaling enabled on this interface 1 3 6 1 4 1 18 3 4 23 1 7 1 2 Note When you disable signaling on the interface the ATM Service Record Parameters window automatically sets the Data Encapsulation Type parameter to LLC SNAP and the Virtual Connection Type parameter to PVC Parameter Protocol Standard Path Configuration Manager gt Protocols gt ATM gt ATM Signaling This parameter also appears in the Initial ATM Signaling Config window Default UNI_V30 Options UNI_V30 UNI_V31 Function Specifies how the interface defines Service Specific Connection Oriented Protocol SSCOP frames Version 3 0 and Version 3 1 SSCOP frames are incompatible Instructions You must assign the same protocol standard for both the router interface and the MIB Object ID switch Accept the default UNI_V30 if the switch uses UNI Version 3 0 to define SSCOP frames Select UNI_V31 if the switch uses UNI Version 3 1 to define SSCOP frames 1 3 6 1 4 1 18 3 4 23 1 7 1 15 114056 Rev A A 41 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Par
39. Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID T398 Configuration Manager gt Protocols gt ATM gt ATM Signaling 4 1 through 24 Defines the Drop Party Sent timer value in seconds This timer applies to multipoint connections only and begins when the circuit sends a DROP PARTY message to a party the receiver of the message on the network The Drop Party Sent timer stops when the circuit receives a DROP PARTY ACKNOWLEDGE message indicating that the endpoint used for the party has been released or a RELEASE message indicating that the endpoint used for the party has been released and there are no remaining parties Accept the default 4 or enter a value from 1 through 24 1 3 6 1 4 1 18 3 4 23 1 7 1 34 T399 Configuration Manager gt Protocols gt ATM gt ATM Signaling 14 1 through 84 Defines the Add Party Sent timer value in seconds This timer applies to multipoint connections only and begins when the circuit sends an ADD PARTY message to a party the receiver of the message on the network The Add Party Sent timer stops when the circuit receives an ADD PARTY ACKNOWLEDGE message indicating the connection to the party ADD PARTY REJECT message indicating the inability to add the party or a RELEASE message indicating the inability to add the party and the absence of any remaining parties If the timer expires before the circuit
40. ILI ILMI IP IPX ITU T LANE LE LEC LECS LES LIS LLC LUNI MAC MBS MCS MIB MCR MTU NML NMS NNI OAM amp P OSI OSPF PCR PD PDN Data Exchange Interface emulated LAN error recovery Fast Routing Engine Intelligent Link Interface Interim Local Management Interface Internet Protocol Internet Packet Exchange International Telecommunications Union Telecommunication Standardization Sector LAN emulation LAN emulation LAN emulation client LAN emulation configuration server LAN emulation server logical IP subnet Logical Link Control LAN emulation UNI media access control maximum burst size multicast server management information base minimum cell rate Maximum Transmission Unit Native Mode LAN network management station network to network interface operations administration maintenance and provisioning Open Systems Interconnection Open Shortest Path First peak cell rate poll data Public Data Network XXIV 114056 Rev A PDU PVC RIP RS SAAL SAP SAR SCR SD SDH SDU SMDS SNAP SNMP SONET SPE SRM SSCOP SSCS STAT STP SVC TOH UNI UTP VBR VC VCC VCI VCL VPC VPI WAN About This Guide protocol data unit permanent virtual circuit Routing Information Protocol resynchronization Signaling AAL service access point segmentation and reassembly sustainable cell rate sequenced data Synchronous Digital Hierarchy service data unit Switched Multimegabit Dat
41. IP parameters for creating adjacent hosts in a Classical IP over ATM environment Refer to Adjacent Host Parameter Descriptions for details Refer to Configuring IP Services for more information about adding editing and deleting adjacent hosts Editing an ATMARP IP Interface After you configure ATMARP on an IP interface you can modify characteristics of the client or server by editing ATM specific IP parameters Appendix A describes ATM specific IP parameters necessary for Classical IP operation within an ATM environment Refer to IP Interface Parameter Descriptions for details 114056 Rev A 3 5 Configuring ATM Services Where to Go Next Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Chapter 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 3 6 114056 Rev A Chapter 4 Understanding ATM LAN Emulation Concepts This chapter provides general information a
42. Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Max Connection Control Configuration Manager gt Protocols gt ATM gt Signaling AAL 4 1 through 20 Defines the SSCOP Maximum Connection Control value This value sets the maximum number of times the sender can transmit a BGN END RS or ER PDU Accept the default 4 or enter a value from 1 through 20 1 3 6 1 4 1 18 3 4 23 1 8 1 13 Max PD Before Poll Configuration Manager gt Protocols gt ATM gt Signaling AAL 25 1 through 120 Defines the SSCOP Maximum Poll Data PD value This value sets the maximum value of the poll data state variable before transmitting a POLL PDU The poll data state variable increments upon transmission of a sequenced data SD PDU and resets to zero upon transmission of a POLL PDU Accept the default 25 or enter a value from 1 through 120 1 3 6 1 4 1 18 3 4 23 1 8 1 14 Max STAT PDU Elements Configuration Manager gt Protocols gt ATM gt Signaling AAL 67 Odd integers from 3 through 119 Defines the SSCOP Maximum STAT value This value sets the maximum number of list elements allowed in a STAT PDU The sending device uses the value of this parameter for segmentation purposes When the number of list elements exceeds the Max STAT value the STAT message segments As a general rule the default value 67 causes the STAT PDU to fill six ATM cells using AAL 5 Accept the
43. KKK KKK KKK KKK KKK KK KKK 172 11 03 95 11 45 17 386 DEBUG SLOT 5 ATM_LE Code 45 LEC API msg LE Event Response from LEC 3 UserHandle 15592560 TransId 00000000 Rx VCC Added Event from LEC 16308 VCC 0 37 173 11 03 95 11 45 17 386 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound ATM VC Release Respons ATM Layer Manager Outbound Release Request 174 11 03 95 11 45 17 390 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound OPEN VC RESP 175 11 03 95 11 45 17 390 DEBUG SLOT 5 ATM_LE Code 45 EC LE READY IND packet on 0 37 discarded EC Control Packet Opcode FLUSH Reg Type REOUEST Transaction Id 00000007 Reguestor LECID 0048 Flags 0000 Lan Type Unspec Max Frame Size Unspec Targ ATM Address 39000000000000000000000000 0000a20e9fca 00 176 11 03 95 11 45 17 394 DEBUG Dest LAN SLOT 5 ATMII Code 45 Lu Src ATM Address Src LAN 39000000000000000000000000 0000a20872e2 00 C 22 114056 Rev A ATM Sample Log E EC Replying to received LE FLUSH REQUEST for LEC 3 KKK KK KKK KKK KK KKK KK KKK AKA KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KKK KKK KKK KK KKK KK KK The remote LE client begins the Flush protocol so that it can begin using the new Data VC KKK KKK KK KKK AA KKK KK KKK KR KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK
44. KKK KKK KKK KKK KKK KK KKK KKK KK KK Q SAAL is a reliable transport mechanism used by signaling SAAL signaling ATM adaptation layer KKK KKK KK KKK KKK KK KK KKK KR KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KKK KK KK 114056 Rev A C 3 Configuring ATM Services 25 Configuring SAP 0 of layer 2 11 03 95 11 44 58 902 DEBUG FSM atmlmst_sig_vmr call_ref 2 Configuring layer 2 UME UME SLOT 5 ATM_SIG State VC_MOD_MSG WAIT General Code 24 Event VC_MOD_RSP KKK KKK KK KKK A A KKK KK KKK KR KKK KKK KKK KKK kk KKK KKK KKK KKK KKK KKK KKK KKK KK KK KKK KK KK UME refers to ILMI KKK KKK KK KKK KKK KK KK KKK AXA KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KK KK KKK 26 UME E 21734 28 291 Line 11 03 95 11 44 58 917 DEBUG User General Configuration SLOT 5 ATM_SIG Configuring SAP 0 of layer 3 11 03 95 11 44 58 921 DEBUG SLO 5 ATM SIG ATM Layer Manager Inbound SSCOP Status Indication 11 03 95 11 44 58 925 DEBUG SLO 5 ATM SIG SSCOP Status Indication su 0 ev 3 ui 3 sscf 3 sscop 3 1i 3 11 03 95 11 44 58 925 INFO SLO 5 ATM SIG 1405101 ATM SSCOP active 11 03 95 11 44 58 925 DEBUG SLO 5 ATM SIG 30 SSCOP Status Indication PROT ST UP Code 24 Code 24 Code 24 Code 5 Code 24 KKK KKK KK KKK AA KKK KK KKK KR KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KKK KKK KK KK KK
45. LAN 4 6 114056 Rev A Understanding ATM LAN Emulation Concepts Where to Go Next Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Chapter 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 114056 Rev A Chapter 5 Customizing an ATM Line The type of ATM link module you use in your router determines how you edit the line details This chapter describes how to customize the various line details including e Attributes specific to ATM FRE2 ILI pairs e Attributes specific to ATM ARE ILI pairs and the Model 5780 ATM router Modifying ATM FRE2 Line Details This section describes how to edit the line details for ATM FRE2 link modules Enabling and Disabling the ATM Line By default when you create an ATM circuit the physical line or the interface to that line is enabled You can enable or disable the ATM circuit for the specific connector without having to remove the phys
46. Lan erue eed 2 19 Rules for Editing Protocols 3 2 dne te RI Rei 2 20 ARP and Inverse ARP Support ssssssssssssseseeeee nennen nennen nennen 2 20 ATM Error Ghecking oc nete aee era ain eade i ied a ue ee 2 21 Simulated Multicast Packet Support eee ee eee eee eee nenene eene 2 21 Converting Mb s to Cells s ee eee ee eee ee eee 00000 denne een KARA Pena 2 21 Example of an ATM Network eeeeeee eee i Keen KKK KKK Keen en 2 22 Hardware Devices 2 e eee eee nene ee KARA K KKK nennen nn nnne ntn ntes sensns 2 24 Function of the LattisCell Switch 2 24 Function of the EtherCell Switch eene 2 24 Function of the Centillion 100 Switch sseeeeee 2 25 Function of the Router ATM ILI Pair u n nenene 2 26 Understanding the Configuration and Control Software nn 2 26 Role of Site Manager ssssssssssssssseseneneen nennen enne nnns 2 26 Role e RTE EE 2 26 Role ol the CGMS EE 2 26 Role ofthe MOS eiea nadine a Anil a e anna PI ode san 2 27 Role of Optivity LAN O tiere petite deb edite ede heh ende 2 27 For More Information 2 cceccceceeeeeeeeeeeeeceeacaecaeeeeeeeeegeceseaeaaeaesaeeeeeeseseeseeeeesinieeaeeees 2 28 Wheire to GONGU 342 Seet Dee quad eiae SUY Te una e 2 29 Chapter 3 Understanding Classical IP over ATM Concepts ATM Address Resolution sse nennen ennemis 3 3 Configuring an ATM Service R
47. Segmentation and Reassembly SAR sublayer described 2 7 service attributes descriptions A 17 window sequence PVC A 18 window sequence SVC A 19 service records adding Classical IP 1 4 adding LANE 1 5 adding PVC 1 3 customizing 6 4 to 6 7 data encapsulation types for 1 3 defined 2 8 defining 6 5 parameters ATM Addr Net Prefix A 22 ATM Addr User Part A 22 Data Encapsulation Type A 20 Enable Disable A 20 MTU A 24 User Part Autogeneration A 21 Virtual Connection Type A 21 window sequence PVCs A 18 window sequence SVCs A 19 Set Retry Count See ILMI Set Retry Count Set Timer See ILMI Set Timer Setup Sent timer See T303 signaling control VCs customizing 11 1 to 11 7 redefining 11 1 customizing 9 1 to 9 9 enabling disabling 9 2 parameters Enable A 41 Max Number of SVC Applications A 42 Max Parties in Multipoint Connections A 43 Max Point to Multipoint Connections A 42 Max Point to Point Connections A 42 Min Memory Threshold A 43 Num Messages Sec for Call Pacing A 51 Num Restarts ReXmitted A 51 Num Stat Enquiries ReXmitted A 51 Protocol Standard A 41 T303 A 44 T308 A 45 T309 A 45 T310 A 46 T313 A 46 T316 A 47 T316c A 48 T322 A 49 T398 A 50 T399 A 50 TDisc A 49 VCI A 44 VPI A 43 support 9 1 window sequence A 40 Signaling AAL See SAAL SSCOP connection control 12 4 poll data 12 4 STAT PDU elements 12 5 Status Enquiry Sent timer
48. Services Understanding LAN Emulation States As defined in the ATM Forum LAN Emulation Over ATM specification LE clients enter various states of communication while attempting to join an emulated LAN These states referred to as phases by the ATM Forum indicate the progress of an LE client as it connects with an emulated LAN Figure 4 1 Initial State 1 LECS Connect State 2 After experiencing Configure State 3 any failure or terminating its connection to the emulated LAN the LE client returns to the initial state Join State 4 Initial Registration State 5 BUS Connect State 6 If the LE Client loses the BUS connection it can attempt to reconnect Operational State 7 ATM0034A Figure 4 1 LAN Emulation States Note The numbers that follow each individual state appear in the ATM LEC status record wfAtmLecStatusEntry Refer to the following sections to better understand each state 114056 Rev A Understanding ATM LAN Emulation Concepts Initial State An LE client always starts in the initial state before attempting to connect to the LECS LECS Connect State An LE client enters the LECS connect state when it attempts to connect to the LECS Configure State An LE client enters the configure state when it attempts to retrieve necessary information that is the ATM address of the LES LAN type LAN name Maximum MTU and various timeout values to begin jo
49. U UNI version See Protocol Standard unknown frames controlling 8 4 Use Hardware MAC Address enabling disabling 6 2 parameter description A 16 User Part Autogeneration enabling disabling 6 3 parameter description A 21 V VC type See Virtual Connection Type VCC Timeout Period Enable parameter description A 36 setting 8 6 VCI signaling changing 11 1 parameter description A 44 See also ILMI VCI VCI Number parameter description A 26 setting 7 2 virtual channel identifier VCI defined 2 4 virtual channel defined 2 4 virtual circuits See PVCs or SVCs Virtual Connection Type parameter description A 21 specifying 6 6 virtual path identifier VPI defined 2 4 virtual path defined 2 4 VPI signaling changing 11 1 parameter description A 43 See also ILMI VPI VPI Number parameter description A 25 setting 7 1 VPI VCI pairs setting 7 1 See also VPI Number or VCI Number W window path using A 1 windows accessing A 1 World Wide Web Bay Networks home page on xxvii X Xmit Burst Size parameter description control VCs A 59 PVCs A 30 setting control VCs 11 6 PVCs 7 7 Xmit Peak Cell Rate parameter description control VC A 56 PVC A 27 setting control VCs 11 2 PVCs 7 3 Xmit Sustainable Cell Rate parameter description control VC A 57 PVC A 28 setting control VCs 11 4 PVCs 7 5 Index 12 114056 Rev A
50. You can run a single version on Macintosh Windows 3 1 Windows 95 Windows NT DOS or UNIX computing platforms A Web links feature enables you to go directly from the CD to various Bay Networks Web pages CompuServe For assistance with noncritical network support issues Bay Networks Information Services maintain an active forum on CompuServe a global bulletin board system This forum provides file services technology conferences and a message section to get assistance from other users The message section is monitored by Bay Networks engineers who provide assistance wherever possible Customers and resellers holding Bay Networks service contracts also have access to special libraries for advanced levels of support documentation and software To take advantage of CompuServe s recently enhanced menu options the Bay Networks Forum has been re engineered to allow links to our Web sites and FTP sites We recommend the use of CompuServe Information Manager software to access these Bay Networks Information Services resources To open an account and receive a local dial up number in the United States call CompuServe at 1 800 524 3388 Outside the United States call 1 614 529 1349 or your nearest CompuServe office Ask for Representative No 591 When you are on line with your CompuServe account you can reach us with the command GO BAYNET XXX 114056 Rev A InfoFACTS Technical Support and Online Services InfoFACTS is the Bay
51. also LAN emulation data encapsulation LE client See LEC LE Config Server ATM Address entering 8 9 parameter description A 39 Index 6 114056 Rev A LE Server ATM Address entering 8 2 parameter description A 34 LEC customizing 8 1 to 8 9 defining 8 1 Emulated LAN Name entering 8 2 LE Server ATM Address entering 8 2 owner specifying 8 2 described 4 2 LECS Connect State LAN emulation 4 5 LECS See LAN emulation configuration server LES See LAN emulation server line parameters ATM ARE Clocking Signal Source A 12 Data Path Enable A 10 Data Path Notify Timeout A 10 DS3 Line Build Out A 12 DS3 Scrambling A 13 Enable A 9 Framing Mode A 11 Interface MTU A 9 SVC Inactivity Timeout A 11 SVC Inactivity Timeout Enable A 11 ATM FRE2 Cell Insertion A 8 Data Path Notify A 6 Data Path Notify Timeout A 6 Enable A 5 Framing Mode A 7 Loopback A 8 Scrambling A 7 SVC Inactivity Timeout A 7 SVC Inactivity Timeout Enable A 6 lines modifying ATM ARE 5 5 ATM FRE2 5 1 Model 5780 5 5 window seguence A 5 Index Link Connection Arbitration defining 12 2 parameter description A 62 LLC SNAP defined 2 9 See also data encapsulation log file C 1 to C 27 Loopback enabling disabling 5 4 parameter description A 8 MAC Address Override entering 6 2 parameter description A 17 MAC Address parameter A 67 Max Connection Control parameter description A 64 setting 12 4 Max N
52. cannot exceed the maximum rate for the physical media For example you cannot exceed 149 76 Mb s for a SONET SDH line The PCR specifies the desired rate for the attached physical media that is SONET SDH DS 3 or E 3 It does not specify the rate for the ATM network as a whole For example you can specify a full 149 76 Mb s for each PVC or control VC on a SONET SDH connection However if the VC ultimately connects to a lower speed link for example T1 or E1 your PCR is limited to the maximum rate of that media ATM FRE2 ILI pairs require a minimum PCR value of 300 cells s VCs may fail to operate with PCR values less than 300 cells s ATM ARE ILI pairs require a minimum PCR value of 128 cells s VCs may fail to operate with PCR values less than 128 cells s The E 3 framing mode setting affects the maximum PCR setting By default the PCR is set to 2358 cells s Table 7 1 lists the valid ranges for each Bay Networks ATM router Table 7 1 Valid PCR Ranges ATM Routers Range Cells s ATM FRE2 OC 3 SONET SDH ILI pairs 300 through 365566 ATM ARE OC 3 SONET SDH ILI pairs 128 through 353207 Model 5780 128 through 353207 ATM ARE DS 3 ILI pairs 128 through 96000 ATM ARE E 3 ILI pairs G832 Framing Mode 128 through 80000 ATM ARE E 3 ILI pairs G751 Framing Mode 128 through 72000 For additional information about traffic parameters refer to ATM Traffic Parameters in Chapter 2 Site Manag
53. direct traffic through another bridge port However since the PVCs are not defined as hybrid bridged VCs the ATM bridge port views the paths to Site A and Site B as the same A bridge does not send out the same data over the bridge port from which it just received the data This means that the bridge cannot direct the data to Site B To resolve this problem you need to designate the PVCs as hybrid bridged VCs If you define the PVCs as hybrid VCs refer to Figure 2 8 each PVC acts as a separate bridge port This enables the bridge running on the ATM interface to view the traffic from Site A as arriving on a different port than that of Site B When the bridge sends out data it now has access to all its ports including the port that accesses Site B Therefore data from Site A can reach Site B 114056 Rev A 2 17 Configuring ATM Services SVC Access Methods SVCs use signaling messages to dynamically establish maintain and clear a switched virtual connection at the UNI These messages as defined by the Q 2931 standard for signaling protocol allow the router to assess the availability of an ATM endpoint device establish a connection with that device maintain that connection for the duration of data transfer and then clear the connection when the transfer is complete ATM Traffic Parameters The ATM User Network Interface Specification defines several traffic parameters including e Peak Cell Rate PCR The upper traffic
54. eeeennn 5 1 Specifying the Data Path Notify Timeout Value eeeeeeeeee0 een en 5 2 Enabling or Disabling SVC Inactivity Timeout u eee eeee eee een 5 2 Specifying an SVC Inactivity Timeout In Seconds eee 5 2 Modifying ATM FRE2 Physical Attributes A 5 3 Assigning the Framing Mode A 5 3 Enabling or Disabling Cell Payload Scrambling 5 4 Enabling or Disabling Loopback AA 5 4 Defining ATM Gell IiSertior reor a treiben te be Eee er nente 5 4 Modifying ATM ARE and Model 5780 ATM Router Line Details 5 5 Enabling or Disabling the Line Driver esesm 5 5 Defining the Interface MTU u u eee eee eee eee enne rennen 5 5 Enabling and Disabling the Data Path Function eee sess 5 5 X 114056 Rev A Specifying a Data Path Notify Timeout nnns 5 6 Enabling or Disabling SVC Inactivity Timeout u eeee eee eee een 5 6 Specifying an SVC Inactivity Timeout In Seconds eee 5 6 Assigning the Framing Mode A 5 7 Defining the Clocking Signal Source sse 5 7 Specifying DS3 Line Build Out sssssssssssssseeeeeeeeren nennen 5 8 Turning On and Off DS3 Scrambling ee eee eee eee eee nee 5 8 Whiere to Go Next ee pt toe Deel a tutte t eese Meet teet ted tet duas 5 9 Chapter 6 Customizing ATM Interfaces and Service Records Setting the Interface Administrative State sss 6 1 Enabling or Disabling S
55. emulation 4 6 BUS described 4 3 C Call Proceeding Received timer See T310 calls pacing 9 9 cell insertion defining 5 4 payload scrambling See Scrambling switching 2 3 technology 2 1 Cell Insertion defining 5 4 parameter description A 8 Classical IP concepts 3 1 to 3 4 enabling 1 7 Clocking Signal Source defining 5 7 parameter description A 12 CMS role of 2 26 CompuServe Bay Networks forum on xxviii Configuration Manager Protocols menu using A 3 Index 2 114056 Rev A Configuration Mode parameter description A 32 selecting 8 3 Configure State LAN emulation 4 5 configuring ATMAREP 3 4 Connect Sent Timer See T313 Connection Control setting 12 4 Connection Control Timer parameter description A 63 Connection Management System CMS software role of 2 26 connections memory 9 3 setting thresholds 9 3 Connector window See Edit ATM Connector window Control Timeout parameter description A 35 setting 8 5 control VCs customizing ILMI 11 1 to 11 7 signaling 11 1 to 11 7 parameters Maximum AAL CPCS Receive SDU Size A 60 Maximum AAL CPCS Transmit SDU Size A 59 Xmit Burst Size A 59 Xmit Peak Cell Rate A 56 Xmit Sustainable Cell Rate A 57 redefining ILMI 11 2 signaling 11 1 traffic parameters 11 2 Convergence Sublayer CS described 2 7 counters modifying ILMI 10 1 to 10 3 Customer Service FTP xxvii Index customer support See getting help
56. for LEC 3 EC Control Packet Opcode JOIN Req Type RESPONSE Status SUCCESS Transaction Id 00fb7b60 Requestor LECID 0050 Flags 0080 Lan Type 802 3 Max Frame Size 1516 Lan Name 29 Targ ATM Address 39000000000000000000000000 0800201a42c4 01 Dest LAN 118 11 03 95 11 45 16 085 DEBUG SLOT 5 ATM_LE Code 45 Src ATM Address 39000000000000000000000000 0000a20e9fca 00 Src LAN 00 00 a2 0e 9f ca C 14 114056 Rev A 119 11 03 95 11 45 16 085 TRACE LEC LEC 3 successfully joined LAN 29 LECID SLOT 5 ATM_LE 0050 ATM Sample Log Code 41 KKK KK KKK KK KKK KKK KK KKK KK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KK KK KKK The LEC has opened a Control Direct VC transmitted a join request received an open indication for the Control Distribute VC and received a join response from the LES of the emulated LAN The LEC has successfully joined the emulated LAN KKK KK KKK KKK AA KKK KK KKK KR KKK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KKK KK KK 120 LEC API msg LE 00000000 LAN 11 03 95 11 45 16 085 DEBUG Event Response from LEC 3 User Emulation MAC Service Up Event from L SLOT 5 ATM_LE Handle 15592560 Code 45 TransId EC 16308 EC API msg LE Config Response from LEC 3 UserHa
57. gt ATM gt Service Records gt LEC Default Unspecified Options Unspecified IEEE8023 Function Indicates the data frame format this client uses when it joins an emulated LAN Clients that use Automatic configuration mode use this parameter in their LE_CONFIGURE_REQUEST frames to specify the LAN type Clients that use Manual configuration mode use this parameter in their LE JOIN REOUEST frames to specify the LAN type Selecting manual configuration mode refer to the parameter description above requires that you set the Emulated LAN Type to IEEE8023 Instructions Accept the default Unspecified if you want the client to obtain the LAN type MIB Object ID from the LAN emulation configuration server LECS when it joins an emulated LAN Select IEEE8023 if you want the client to join only Ethernet emulated LANs 1 3 6 1 4 1 18 3 5 9 5 20 1 1 6 Parameter MTU Path Configuration Manager gt Protocols gt ATM gt Service Records Default 4608 Options 0 through 9188 Function Defines the Maximum Transmission Unit MTU in bytes that this service record can send The MTU size is typically determined by the driver However this parameter allows you to override the driver default to accommodate connection to devices that require different MTU sizes Instructions Accept the default or enter an MTU size for this service record MIB Object ID 1 3 6 1 4 1 18 3 4 23 1 2 1 12 Note For full compatibility with RFC 1577 you may ha
58. have interfaces to an Ethernet LAN To communicate with each other on the LAN the devices use the MAC addresses of the LAN that they obtain using the ARP or by static configuration For communications beyond the LAN the devices use IP addresses 114056 Rev A 3 1 Configuring ATM Services 140 250 200 1 Router 00 00A2 000001 140 250 200 0 140 250 200 2 140 250 200 3 140 250 200 4 00 00A2 00 10 20 00 00A2 00 10 30 00 00A2 00 10 40 ATMO0035A Figure 3 1 IP Local Area Network In Figure 3 2 an ATM network replaces the LAN interfaces creating a LIS For communications within the LIS the devices use ATM addresses obtained using ATMARP for communications beyond the LIS the devices use IP addresses For example to send a message to Host B Host A uses Host B s ATM address To send a message to a host beyond the LIS Host A uses an IP address to identify the remote host and sends the message to the local router using the router s ATM address The router forwards the message 114056 Rev A Understanding Classical IP over ATM Concepts ATMARP client L e Router A ATMARP server JL ee Router A LLLI SVC supporting ATM LIS ATM0037A Figure 3 2 IP Logical IP Subnet ATM Address Resolution An address resolution protocol defines a mechanism that enables an IP router to
59. rate limit for an individual VC e Sustainable Cell Rate SCR The upper bound on the conforming average rate of an individual PVC or Control VC where Average rate The number of cells transmitted over the link divided by the duration of the connection Duration of the connection The total amount of time it takes from connection setup to connection release e Maximum Burst Size MBS The maximum length of a cell stream allowed on a particular VC These parameters help to prioritize and control the traffic on each VC For more information about each of these traffic parameters and how to customize them refer to Chapter 7 How you assign your ATM traffic parameters depends on e The characteristics of the individual connections that you want to set up for example the desired maximum cell rate average cell rate and burst size e The bit rate method variable or available that the ATM ILI pair uses 2 18 114056 Rev A Understanding ATM Concepts You can change your ATM traffic parameters several times before deciding on a particular set This section explains the different traffic parameters and provides some basic guidelines for customizing traffic parameters on an ATM PVC or ATM Control VC that is the signaling VC or interim local management interface VC Note You do not need to manually configure traffic parameters for SVCs as you must for PVCs and Control VCs because SVCs dynamically negotiate the
60. sent the LE client a copy of the LE ARP request The LE client drops this request because it recognizes it as its own The LE client receives the copy of this request from the LES because the address for which it is sending an ARP request is currently not registered with the switch Under these circumstances the LES forwards the ARP request to all clients that have successfully joined the emulated LAN as proxy agents KKK KK KKK KK KK KK KK KK KKK KKK KKK KKK kk ck kk CK Ck Ck kk Sk kk kk ck KKK KKK KKK KKK KK KKK KK kk LEC Control Packet 158 11 03 95 11 45 17 195 DEBUG SLOT 5 ATM_LE Code 45 Opcode ARP Req_Type RESPONSE Status SUCCESS Transaction_Id 00000001 Requestor LECID 0050 Flags 0000 Lan Type 802 3 Max Frame Size Unspec Targ ATM Address 39000000000000000000000000 0000a20d72e2 00 Dest LAN 00 00 a2 0d 72 e2 Src ATM Address 39000000000000000000000000 0000a20e9fca 00 Oro LANI KKK KKK AKA KKK AA AA AA AKA XK AK KKK KKK KKK AA KKK KKK A AAA AXA AA KKK KKK KKK KKK KKK KKK KKK KK KK The LE client has received an LE ARP response for the previous LE ARP request which it sent out The LEC now knows to associate MAC address 00 00 a2 0d 72 e2 with ATM address 39000000000000000000000000 0000a20d72e2 00 The LE client now tries to open up a Data VC to the remote LEC KKK KKK KK KKK AA AA AA AA XK AX KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK 159 11 03 9
61. sequence This means that once the LEC issues a Flush request the Flush protocol drops any cells it receives for the particular MAC address until e The LEC receives a Flush response for that MAC address The Flush timeout expires for that MAC address If the client receives a flush response for the cell MAC address the cells for this MAC address begin flowing over a new virtual circuit However if the flush timeout expires for this MAC address the cells begin flowing to the BUS Enabling or Disabling the Flush Protocol You can enable the default selection or disable the Flush protocol for any LEC When enabled the Flush protocol drops cells with the current destination MAC address until the LEC receives a Flush response for that MAC address or the Flush Timeout expires see the following section When disabled cells containing the destination MAC address drop while waiting for the Path Switching Delay to time out After the Path Switching Delay time elapses the data automatically begins flowing over a new virtual circuit Site Manager Flush Protocol page A 39 Setting the Flush Timeout The Flush Timeout defines the amount of time the LEC waits to receive a Flush response after sending a Flush request before it takes recovery action by switching back to the BUS By default the LEC waits 4 seconds for a Flush response However you can set the Flush Timeout to a value from 1 through 4 seconds Site
62. switch module The Centillion 100 supports parallel switching operations to maximize throughput The Centillion 100 supports three types of switch modules e TokenSpeed a token ring switch module with four shielded twisted pair STP unshielded twisted pair UTP or fiber optic either 16 Mb s or 4 Mb s ports e ATMSpeed 155 an ATM switch module with two ATM OC 3c 155 Mb s ports e EtherSpeed an Ethernet switch module with sixteen 10 Base T 10 Mb s ports For additional information regarding Centillion 100 features and how to install and use the Centillion 100 refer to Centillion 100 Installation and Configuration 114056 Rev A 2 25 Configuring ATM Services Function of the Router ATM ILI Pair ATM router link modules interact with specific processor modules to form ILI pairs These ILI pairs provide the connection and processing that allows the router to connect directly to an ATM network and route information to other local or wide area networks that it supports Bay Networks currently provides the following ATM ILI pairs e An ATM FRE2 link module in conjunction with a FRE2 processor e AnARE link module in conjunction with an ARE processor Both ILI pairs are functionally similar and you configure them in generally the same way Understanding the Configuration and Control Software The sample ATM network consists of various control software components Each of these components provides a necessary function
63. the LE client from the MAC address or route descriptor Having both the ATM addresses and the physical locations of all LE clients on the emulated LAN allows the LES to coordinate access among LE clients In other words other LE clients query the LES to obtain the ATM address associated with a specific MAC address or a route descriptor After an LE client receives the ATM address of the LE client it wants to reach the individual clients communicate directly Broadcast and Unknown Server To emulate a traditional LAN the emulated LAN must provide the connectionless data delivery characteristics of a shared network to its LE clients This means that the emulated LAN must also be able to handle broadcast and multicast data The broadcast and unknown server BUS addresses this requirement by distributing all broadcast multicast and unknown traffic to and from all LE clients on an emulated LAN For example when an LE client sets up its initial configuration it obtains the MAC address of the BUS from the LES Using this MAC address the LE client sets up a multicast send VCC to the BUS In turn the BUS registers the LE client as part of its emulated LAN To broadcast data an LE client uses the multicast send VCC to send information to the BUS The BUS then retransmits the data through multiple point to point connections or one point to multipoint connection to each LE client on the emulated LAN 114056 Rev A 4 3 Configuring ATM
64. you can define the future cell flow of a VC in greater detail than by just using the peak cell rate For ATM FRE2 ILI pairs specifying the SCR controls the rate over time not at a specific instant of time and can help you more efficiently use your network resources For ATM ARE ILI pairs and Model 5780 ATM routers the SCR maps directly to the minimum cell rate MCR The MCR defines the minimum amount of guaranteed bandwidth allowed for PVCs and Control VCs on the ATM line When setting the SCR for ATM FRE2 ILI pairs keep the following in mind The SCR is essentially a future average By setting the SCR you are specifying the cell rate over time to which you want the VC to conform To be useful the SCR must not exceed the PCR If you know the user average rate set the SCR about 10 percent higher than this value ATM FRE2 ILI pairs require a minimum SCR value of 300 cells s PVCs may fail to operate with SCR values less than 300 cells s continued A 28 114056 Rev A Parameter Instructions MIB Object ID Site Manager Parameters Xmit Sustainable Cell Rate cells s continued When setting the SCR for ATM ARE ILI pairs and Model 5780 ATM routers keep the following in mind The SCR maps directly to the MCR The MCR provides guaranteed bandwidth for PVCs and Control VCs while allowing sufficient bandwidth for SVCs to operate To be useful the SCR must not exceed the PCR If you know the user averag
65. 0 1 through 540 Defines the SAAL Data Link Connect timer value in seconds This timer begins when a Signaling AAL malfunction occurs The SAAL Data Link Connect timer stops when the circuit re establishes SAAL that is when the circuit sends an AAL ESTABLISH REQUEST and receives an AAL ESTABLISH CONFIRM message If the timer expires before the circuit can re establish SAAL the circuit clears the connection Accept the default 10 or enter a value from 1 through 540 1 3 6 1 4 1 18 3 4 23 1 7 1 27 114056 Rev A A 45 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID T310 Configuration Manager gt Protocols gt ATM gt ATM Signaling 10 1 through 60 Defines the Call Proceeding Received timer value in seconds This timer begins when the circuit receives a CALL PROCEEDING message from the network If the signaling does not receive a CONNECT or RELEASE message before this timer expires it clears the connection for that virtual circuit Accept the default 10 or enter a value from 1 through 60 1 3 6 1 4 1 18 3 4 23 1 7 1 28 T313 Configuration Manager gt Protocols gt ATM gt ATM Signaling 4 1 through 24 Defines the Connect Sent timer value in seconds This timer begins when the circuit sends a CONNECT message to the network The Connect Sent timer stops when
66. 00 000000a2 0e9fca00 KKK KK KKK ck ck ck KKK KK KK KK KR KK KK KK KKK KKK ck kk kk Ck Ck Ck AA AA ck ck kk kk KKK KKK KKK KKK KK KKK KK KK The ATM address defined in the router ATM service record has been registered with the ATM switch The router received the prefix 39000000000000000000000000 from the switch If you define the prefix in the service record the prefix you define overrides what the router receives from the switch KKK KKK KKK KKK KK KK KK KKK KR KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK 43 11 03 95 11 44 59 214 INFO SLOT 5 ATM_LE Code 6 Line 1405101 Circuit 3 ATM LEC received DP_LINE message 44 11 03 95 11 44 59 218 INFO SLOT 5 ATM LE Code 3 Line 1405101 Circuit 3 ATM LEC initializing 45 11 03 95 11 44 59 308 TRACE SLO 5 ATM LE Code 41 EC Calling SIG_Bind LE_CTRL cct 3 bind_id 0 46 11 03 95 11 44 59 308 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound Bind Request 47 11 03 95 11 44 59 312 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Outbound Bind Reguest ATM Layer Manager Outbound Bind Confirm 48 11 03 95 11 44 59 312 TRACE SLO 5 ATM LE Code 41 LEC Calling SIG Bind LE 8023 MCAST cct 3 bind id 2 49 11 03 95 11 44 59 316 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound Bind Reguest ATM Layer Manager Outbou
67. 000000000000000000000A20037B801 1 3 6 1 4 1 18 3 5 3 2 1 6 1 6 114056 Rev A A 67 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Host Encapsulation Configuration Manager gt Protocols gt IP gt Adjacent Hosts Ethernet Ethernet SNAP PDN DDN SNAPIP NULL Specifies the adjacent host s encapsulation method Select Ethernet or SNAP Subnetwork Access Protocol if you are defining a point to point network interface or if the adjacent host resides on an Ethernet For an X 25 interface select Public Data Network PDN or Defense Data Network DDN For an adjacent host on an ATM logical IP subnet select SNAP SNAPIP and NULL also specify host encapsulation methods for ATM networks 1 3 6 1 4 1 18 3 5 3 2 1 6 1 7 Adjacent Host X 121 Address Configuration Manager gt Protocols gt IP gt Adjacent Hosts None Any valid X 121 address Specifies the X 121 address of the adjacent host Ignore this parameter You specify an X 121 address only if this is a PDN X 25 DDN X 25 or Blacker front end encryption BFE X 25 connection 1 3 6 1 4 1 18 3 5 3 2 1 6 1 9 A 68 114056 Rev A Site Manager Parameters IP Interface Parameter Descriptions This section describes ATM IP parameters for implementing Classical IP over ATM For additional information about AT
68. 03 95 11 44 58 894 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound ATM VC Reserve Respons FSM atmlmst sig rr call ref 1 State RESERVE WAIT Event ATM VC RESERVE RSP MSG 21 11 03 95 11 44 58 894 INFO SLO 5 ATMINTE Code 15 Port 1 virtual channel VPI 0 VCI 5 call reference 1 activated 22 11 03 95 11 44 58 894 DEBUG SLO 5 ATM SIG Code 24 FSM atmlmst sig rr call ref 2 State RESERVE WAIT Event ATM VC RESERVE RSP MSG 23 11 03 95 11 44 58 898 INFO SLO 5 ATMINTE Code 15 Port 1 virtual channel VPI 0 VCI 16 call reference 2 activated 24 11 03 95 11 44 58 898 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound DP VC LINE Message FSM atmlmst rcp dvl call ref 1 State DP VC LINE WAIT Event ATM OPEN VC RESP ATM Layer Manager Inbound DP VC LINE Message FSM atmlmst rcp dvl call ref 2 State DP VC LINE WAIT Event ATM OPEN VC RESP ATM Layer Manager Inbound VC MOD RESPONSE Message FSM atmlmst sig vmr call ref 1 State VC MOD MSG WAIT Event VC MOD RSP KKK KK KKK KKK AA AA AA AKA XK AK AKA KK KKK AA AA MAX A A Ck kk AXA A AXA KKK KKK KKK KKK KKK KKK KK KKK The VCCs for signaling 0 5 and ILMI 0 16 automatically activate KKK KKK KK KK KKK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK Configuring layer 2 Q SAAL General Configuring SAP 0 of layer 2 Q SAAL KKK KK KKK KKK AA KKK KK KKK KK KK KKK KK KKK KKK KKK KKK KKK
69. 1 ew VC 0 0 vcid 0 Sending FLUSH REQuest for MAC 0x0000a20d72e2 with id 1 KKK KKK KKK KKK KK KK KK KKK KK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KK KK KKK This LEC sends a flush request and modifies the LE ARP cache so that packets destined for the MAC address 00 00 a2 0d 72 e2 temporarily drop KKK KKK KK KKK KKK KK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KK KKK LEC Control Packet Opcode FLUSH Req_Type REQUEST 186 11 03 95 11 45 22 410 DEBUG SLOT 5 ATM_LE Code 45 Transaction_Id 00000001 Requestor LECID 0050 Flags 0000 Lan Type Unspec Max Frame Size Unspec Lan Name Targ ATM Address 39000000000000000000000000 0000a20d72e2 00 Dest LAN Src ATM Address 39000000000000000000000000 0000a20e9fca 00 SEG DANS EC Flush packet not for LEC 3 discarded 187 11 03 95 11 45 22 414 DEBUG SLOT 5 ATM LI EC Control Packet Code 45 LM Opcode FLUSH C 26 114056 Rev A ATM Sample Log Req_Type RESPONSE Status SUCCESS Transaction_Id 00000001 Requestor LECID 0050 Flags 0000 Lan Type Unspec Max Frame Size Unspec Lan Name Targ ATM Address 39000000000000000000000000 0000a20d72e2 00 Dest LAN Src ATM Address 39000000000000000000000000 0000a20e9fca 00 Sco LAN Received FLUSH RESPonse for MAC 0x0000a20d72e2 with id 1
70. 1 17 114056 Rev A Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Clocking Signal Source Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Internal Internal External Specifies whether the router uses its internal clock or an external clock for time signals on this interface Select Internal to use the router s clock select External to use an external clock 1 3 6 1 4 1 18 3 4 23 3 2 1 18 DS3 Line Build Out Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Short Short Long Conditions router signals to mitigate attenuation which depends on the physical length of the line You can set this parameter only when using DS3 modules Select Short for lines shorter than 225 ft select Long for lines 225 ft or longer 1 3 6 1 4 1 18 3 4 23 3 2 1 23 A 12 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters DS3 Scrambling Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes On On Off If you select On the router randomizes cell payload sufficiently to guarantee cell synchronization If you select Off cell synchronization problems may result Note that ATM devices with different scrambling
71. 1 45 01 933 WARNING SLO 5 ATM LE Code EC Close Indication call ref 4 caus t VCC reason 3 SLOT 5 ATM LE Code 76 11 03 95 11 45 05 914 TRACE EC Called SIG Open VC cct 3 c 77 11 03 95 11 45 05 914 DEBUG FSM atmlmst cing rr call ref 5 Event ATM VC RESERVE RSP MS 78 11 03 95 11 45 05 917 DEBUG ATM Layer Manager Inbound Signa FSM atmimst tri nws call ref 5 ATM Release request call ref ATM Layer Manager Outbound Connect Request ATM Layer Manager Inbound ATM VC Reserve Respons SLOT 5 ATM LE Code all ref 5 sig id 1 SLO 5 ATM SIG Code State RESERVE WAIT SLOT 5 ATM SIG Code lling Release Indication SLOT 5 ATM SIG Code ATM Layer Manager Inbound OPEN VC REQ z 24 e 45 EC API msg LE Config Response from LEC 3 UserHandle 15592560 TransId 24 41 24 24 State NETWORK WAIT Event AMUIAMTRELIND 5 cid 7 vpi vci 0 0 ATM Layer Manager Inbound ATM VC Release Respons ATM Layer Manager Outbound Close Indication Line 1405101 Circuit 3 ATM L value 27 EC could not open Config Direc 79 11 03 95 11 45 05 917 WARNING SLO 5 ATM LE Code t VCC reason 3 HE EC Close Indication call ref 5 cause 114056 Rev A C 9 Configuring ATM Services 80 11 03 95 11 45 05 917 DEBUG SLOT 5 ATM LE Code 45 LEC API msg
72. 14056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Virtual Connection Type Configuration Manager gt Protocols gt ATM gt Service Records gt Add SVC signaling enabled or PVC signaling disabled PVC SVC Identifies the virtual connection type of this service record Accept the default SVC if you want the service record to contain switched virtual circuits Select PVC if you want the service record to contain permanent virtual circuits 1 3 6 1 4 1 18 3 4 23 1 2 1 7 User Part Autogeneration Configuration Manager gt Protocols gt ATM gt Service Records gt Add and Configuration Manager gt Protocols gt ATM gt Service Records Enable Enable Disable Enables or disables autogeneration of the ATM Address User Part see the next parameter Depending on the settings in the ATM Interface Attributes window the ATM Address User Part contains either the hardware MAC address or a MAC address override value Accept the default Enable if you want the Configuration Manager to automatically generate the ATM Address User Part for any SVC service record that you add to this interface 1 3 6 1 4 1 18 3 4 23 1 2 1 11 114056 Rev A A 21 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Param
73. 201a42c4 a9 126 11 03 95 11 45 16 097 DEBUG SLOT 5 ATM_LE Code 45 Dest LAN ff ff ff ff ff ff Src ATM Address 39000000000000000000000000 0000a20e9fca 00 Sre LAN KKK KKK KK KKK AA AA AXA AKA K AK AKA KR KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KK The LEC has received an LE ARP response and proceeds to open up the multicast send VCC to the BUS KKK KK KKK KK KK KK KK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KKK KKK KKK KKK KKK KK KKK 127 11 03 95 11 45 16 097 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound OPEN VC REO 128 11 03 95 11 45 16 097 TRACE SLO 5 ATM LE Code 41 EC Called SIG Open VC cct 3 call ref 9 sig id 2 129 11 03 95 11 45 16 097 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound ATM VC Reserve Respons FSM atmlmst cing rr call ref 9 State RESERVE WAIT Event ATM VC RESERVE RSP MS ATM Layer Manager Outbound Connect Request 130 11 03 95 11 45 16 949 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Signalling Connection Status Indication 131 11 03 95 11 45 16 980 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Signalling Connection Confirm FSM atmlmst cing tcc call ref 9 State NETWORK WAIT Event AMUIAMTCONCEM C 16 114056 Rev A ATM Sample Log
74. 35 Site Manager VCI Number page A 26 Note Following the recommendation of the ATM Forum virtual channel identifiers from 0 through 31 are reserved for signaling and added functionality Designating a VC as Hybrid Bridged PVCs do not typically allow for bridging in nonmeshed environments If your network combines bridging and routing over the same interface you need to use the service record portion of each PVC for routing while at the same time allow bridging to operate To do this you must define the PVC as a hybrid bridged VC By default a PVC does not operate as a hybrid bridged VC However you can configure any PVC to operate as a hybrid bridge VC Note When you define a PVC as a hybrid bridged VC you can also configure additional Bridge Spanning Tree and NML protocol options These protocols run on the PVC along with any protocols you defined in the ATM service record For more information on PVC access methods including hybrid access refer to PVC Access Methods in Chapter 2 Site Manager Hybrid Bridged VC page A 26 7 2 114056 Rev A Customizing PVCs Assigning the Administrative State By default the PVC is operational Up when you add it to the service record However you can set the administrative state to Up or Down at any time When the administrative state is Up traffic can flow over the PVC When the administrative state is Down traffic cannot f
75. 5 Configuring ATM Services Although we use raw bandwidth to describe line rates inherent overhead within the media limits maximum bandwidth for the line Use Table 2 1 to determine the maximum bandwidth for the media you are using Table 2 1 Maximum Bandwidth Raw Maximum Maximum Media Bandwidth Mb s Bandwidth Mb s Cells s OC 3 SONET SDH 155 149 76 353207 DS 3 44 736 40 704 96000 E 3 G 832 Framing 34 368 33 920 80000 E 3 G 751 Framing 34 368 30 528 72000 ATM Layer The B ISDN protocol reference model on which ATM is based consists of four layers Each layer communicates only with the layers directly above it or directly below it Figure 2 4 shows the B ISDN ATM protocol reference model Higher Protocol Layer Convergence sublayer CS Segmentation and reassembly sublayer SAR ATM adaptation layer AAL ATM Layer Transmission convergence sublayer Physical medium dependent sublayer PMD Figure 2 4 B ISDN ATM Protocol Reference Model Physical layer PHY ATM0003A 2 6 114056 Rev A Understanding ATM Concepts The following layers relate directly to how Bay Networks routers support ATM e ATM layer e ATM adaptation layer AAL The ATM layer defines how two nodes transmit information between them It is concerned with the format and size of the cells and the contents of the headers The addresses of the cells are meaningful only to the two adjacent lo
76. 5 11 45 17 195 DEBUG SLOT 5 ATM_SIG Code 24 C 20 114056 Rev A ATM Sample Log ATM Layer Manager Inbound OPEN VC REQ 160 11 03 95 11 45 17 199 TRACE SLOT 5 ATM LE Code 41 EC Called SIG_Open_VC cct 3 call_ref 11 sig_id 3 161 11 03 95 11 45 17 199 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound ATM VC Reserve Respons FSM atmlmst cing rr call_ref 11 State RESERVE WAIT Event ATM_VC_RESERVE_RSP_M ATM Layer Manager Outbound Connect Request 162 11 03 95 11 45 17 367 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Signalling Connection Indication ATM Layer Manager Outbound Connection Status Reguest 163 11 03 95 11 45 17 371 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound ATM VC Reserve Respons FSM atmlmst ced rr call ref 12 State RESERVE WAIT Event ATM VC RESERVE RSP MS 164 11 03 95 11 45 17 374 INFO SLOT 5 ATM Code 8 Line 1405101 vpi vci 0 37 has been activated 165 11 03 95 11 45 17 374 INFO LOT 5 ATMINTF Code 15 Port 1 virtual channel VPI 0 VCI 37 call reference 12 activated We 166 11 03 95 11 45 17 374 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound VC MOD RESPONSE Message FSM atmlmst ced vmr call ref 12 State VC_MOD_MSG WAIT Event VC MOD RSP ATM Layer Manager Outbound Connect Response 167 11 03 9
77. 5 11 45 17 382 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Signalling Connection Status Indication FSM atmlmst ced tcsi call ref 12 State NETWORK WAIT Event AMUIAMTCNSTIND ATM Layer Manager Outbound Open Indication 168 11 03 95 11 45 17 382 DEBUG SLO 5 ATM IF Code 45 EC Data Direct open call indicate for LEC 3 VP VC 0 37 169 11 03 95 11 45 17 386 TRACE SLOT 5 ATM IF Code 41 EC Calling SIG Close VC cct 3 call ref 11 sig id 3 170 11 03 95 11 45 17 386 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound CLOSE VC REQ FSM atmlmst cv nws call ref 11 State NETWORK WAIT Event ATM CLOSE VC ATM Release reguest call ref 11 cid 13 vpi vci 0 0 114056 Rev A C 21 Configuring ATM Services 171 11 03 95 11 45 17 386 WARNING SLOT 5 ATM_LE Code 34 LEC incoming Data Direct call accepted call collision drops old pending VCC call_ref 11 for LEC 3 KKK KKK KK KKK AA KKK KK KKK KR KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK While opening up the data VC the LE client noticed that the remote LE client was also trying to open a data VC Since this local LE client ATM address is smaller than the remote LE client ATM address the local LE client accepts the incoming data VC and drops the outgoing data VC KKK KKK KK KKK KK AA AA KA XK AK KK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK
78. AN application software continues to operate as if it were running on a traditional LAN Bay Networks ATM routers support LANE functions as defined in the ATM Forum LAN Emulation Over ATM specification Version 1 0 Enabling or Disabling LANE By default LANE is enabled on a service record when you assign LANE data encapsulation to that service record However you can enable or disable LANE on a service record at any time Site Manager Enable page A 32 Defining a LEC To fully define a LEC you can specify e An owner for the LEC optional e The name of the emulated LAN you want the LEC to join optional ALES ATM address automatic 114056 Rev A 8 1 Configuring ATM Services Specifying an Owner Specifying a LEC owner is optional This entry up to 128 alphanumeric characters provides administrative assistance when distinguishing between various other LECs Site Manager Owner page A 32 Entering an ELAN Name ELAN names are optional values up to 128 alphanumeric characters that provide administrative assistance when distinguishing among various ELANs You can enter the name of an ELAN to which you want the LEC to join If you choose not to enter an ELAN name the LECS assigns the LE client to an ELAN for this domain Site Manager Emulated LAN Name page A 34 Entering a LES ATM Address LE clients use the LES to establish the Control Direct VCC The LEC must know th
79. ATM Protocol Reference Model eee 2 6 ATM Adaptation Layer bh 2 8 Multiple PVCs per Service Record eee eee eee 2 13 One PVC per Service Record eee eee ee eee nenene en 2 15 nij de NA 2 16 Example of a Bridged Network eee e 2 17 Sample ATM Network sess nnne nnns 2 23 IP Local Area Network AA 3 2 IP Eogical IP Subrigt a x icto ete a e Pen odis 3 3 LAN Emulation States sssssssssssssssseseeeeeeeen nennen 4 4 ATM Address Components eee eee eee nenene 6 3 SVC PVC Signaling Protocol Stack 9 1 SVC PVC Signaling Protocol Stack eee eee 12 1 Line Attributes Window Sequence eee eee nenene nen A 5 Interface Attributes Window Sequence sse A 14 Service Attributes Window Sequence PVCS ee A 18 Service Attributes Window Sequence SVCs with LANE A 19 ATM Signaling Parameters Window Sequence ee A 40 ATM ILMI Signaling Parameters Window Sequence A 52 ATM Signaling AAL Records List Window Sequence A 61 xvii Table 1 1 Table 1 2 Table 2 1 Table 2 2 Table 2 3 Table 5 1 Table 6 1 Table 7 1 Table 7 2 Table 9 1 Table 11 1 Table 11 2 Table 12 1 Table A 1 Table A 2 Table B 1 Table B 2 Table B 3 Table B 4 Table B 5 Table B 6 Table B 7 Table B 8 Table B 9 Table B 10 Table B 11 Table B 12 Table B 13 Table B 14 114056 Rev A
80. ATM address network prefix of the ATMARP server on your network 1 3 6 1 4 1 18 3 5 3 2 1 4 1 113 114056 Rev A A 65 Configuring ATM Services Parameter ARP Server ATM Address User Part Path Configuration Manager gt Protocols gt IP gt Interfaces Default None Options 00000000000000 to FEFFFFFFFFFFFF Function Defines the user part suffix of the ATM address for the ATMARP server on your network The user part suffix consists of a 6 byte endstation identifier and a 1 byte selector field The user part and the network prefix form a complete ATM address Instructions Enter the ATM address user part of the ATMARP server for your network MIB Object ID 1 3 6 1 4 1 18 3 5 3 2 1 4 1 113 Adjacent Host Parameter Descriptions This section describes ATM IP parameters for creating adjacent hosts in a Classical IP over ATM environment For additional information about adjacent hosts refer to Configuring IP Services Parameter Enable Path Configuration Manager gt Protocols gt IP gt Adjacent Hosts Default Enable Options Enable Disable Function Specifies the state active or inactive of the adjacent host in the IP routing tables Instructions Select Disable to make the adjacent host record inactive in the IP routing table MIB Object ID the IP router will not consider this adjacent host Select Enable to make the adjacent host record active again in the IP routing table 1 3 6 1 4 1 18 3 5 3 2 1 6 1 2
81. Bay Networks in writing of any such intended examination of the Software and Bay Networks may provide review and assistance Notwithstanding any foregoing terms to the contrary if licensee licenses the Bay Networks product Site Manager licensee may duplicate and install the Site Manager product as specified in the Documentation This right is granted solely as necessary for use of Site Manager on hardware installed with licensee s network This license will automatically terminate upon improper handling of Software such as by disclosure or Bay Networks may terminate this license by written notice to licensee if licensee fails to comply with any of the material provisions of this license and fails to cure such failure within thirty 30 days after the receipt of written notice from Bay Networks Upon termination of this license licensee shall discontinue all use of the Software and return the Software and Documentation including all copies to Bay Networks Licensee s obligations under this license shall survive expiration or termination of this license 114056 Rev A Contents About This Guide Betore You Begin WEE XX GONVEMUONS EE XX ae Kei xxi Ordering Bay Networks Publications sss xxiv Technical Support and Online Services Bay Networks Customer Service sssssssssssssseeeeenee enne nennen nens xxvi Bay Networks Information Services sssssssssssseeeeeeneee
82. C 1577 is the same as in Figure A 4 114056 Rev A Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Disable Configuration Manager gt Protocols gt ATM gt Service Records Enable Enable Disable Enables or disables this service record Accept the default Enable if you want traffic to flow on this service record and its VCs Set to Disable if you do not want traffic to flow on this service record or any of its VCs 1 3 6 1 4 1 18 3 4 23 1 2 1 2 Data Encapsulation Type Configuration Manager gt Protocols gt ATM gt Service Records gt Add LANE signaling enabled or LLC SNAP signaling disabled LANE LLC SNAP NLPID NULL Identifies the data encapsulation type for this service record You can use this parameter to select LLC SNAP NLPID or NULL data encapsulation for service records containing PVCs LLC SNAP data encapsulation for service records containing hybrid PVCs LANE for service records containing SVCs over which you want to run LAN emulation LLC SNAP or NULL for service records containing SVCs over which you want to run classical IP RFC 1577 If you select NULL the router interprets this as virtual channel based multiplexing which is not supported for bridging Select a data encapsulation type 1 3 6 1 4 1 18 3 4 23 1 2 1 5 A 20 1
83. C for Signaling Window eee eee een B 6 ATM Signaling AAL Records List Window eee B 6 ATM ILMI Signaling Parameters Window B 7 XIX Table B 15 ATM Control VC for ILMI Window u eee eee eee eee nn B 7 Table B 16 ATM ARP Configuration Window B 7 XX 114056 Rev A About This Guide This guide describes Asynchronous Transfer Mode ATM and what you do to start and customize a Bay Networks ATM router Use the following table to locate the subject in this guide that you want to know more about Subject Go to Starting ATM on your router Chapter 1 General ATM information and an example of an ATM Chapter 2 network using Bay Networks equipment General Classical IP Over ATM information Chapter 3 General LAN Emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface Chapter 6 Customizing an ATM service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing Signaling Chapter 9 Customizing ILMI Chapter 10 Customizing Signaling and ILMI Control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager Parameters Appendix A Getting a complete list of Site Manager Parameters Appendix A Getting a complete list of Site Manager Defaults Appendix B Viewing a sample ATM log file Appendix C 114056 Rev A xxi Configuring ATM Services Before You Begin Before us
84. DH line e The PCR specifies the desired rate for the attached physical media that is SONET SDH DS 3 or E 3 It does not specify the rate for the ATM network as a whole For example you can specify a full 149 76 Mb s for each PVC or Control VC on a SONET SDH connection However if the VC ultimately connects to a lower speed link for example T1 or E1 your PCR is limited to the maximum rate of that media e ATM FRE2 ILI pairs require a minimum PCR value of 300 cells s VCs may fail to operate with PCR values less than 300 cells s e ATM ARE ILI pairs require a minimum PCR value of 128 cells s VCs may fail to operate with PCR values less than 128 cells s e The E 3 framing mode setting affects the maximum PCR setting By default the peak cell rate is set to 4716 cells s Table 11 1 lists the valid ranges for each Bay Networks ATM router Table 11 1 Valid PCR Ranges ATM Router Range Cells s ATM FRE2 OC 3 SONET SDH ILI pairs 300 through 365566 ATM ARE OC 3 SONET SDH ILI pairs 128 through 353207 Model 5780 128 through 353207 ATM ARE DS 3 ILI pairs 128 through 96000 ATM ARE E 3 ILI pairs G832 Framing Mode 128 through 80000 ATM ARE E 3 ILI pairs G751 Framing Mode 128 through 72000 For additional information about traffic parameters refer to ATM Traffic Parameters in Chapter 2 Site Manager Xmit Peak Cell Rate cells s page A 56 114056 Rev A Configuring ATM Servic
85. Disable Enable User Part Autogeneration Enable ATM Adar User Part None ATM Addr Net Prefix Optional None MTU 4608 B 1 Configuring ATM Services Table B 3 ATM Service Record Parameters Window Parameter Default Data Encapsulation Type LANE signaling enabled or LLC SNAP signaling disabled Virtual Connection Type SVC signaling enabled or PVC signaling disabled User Part Autogeneration Enable ATM Adar User Part None ATM Addr Net Prefix Optional None Emulated LAN Name Default ELAN Emulated LAN Type Unspecified Table B 4 ATM Virtual Channel Link Window Parameter Default Hybrid Bridged VC No Administrative State Up Xmit Peak Cell Rate cells s 2358 Xmit Sustainable Cell Rate cells s 2358 Xmit Burst Size cells 40 Maximum AAL CPCS Transmit SDU Size 4608 Maximum AAL CPCS Receive SDU Size 4608 Data Encapsulation Type LLC SNAP Table B 5 ATM Virtual Channel Link Parameters Window Parameter Default VPI Number None VCI Number None B 2 114056 Rev A Site Manager Default Settings for ATM Table B 6 LAN Emulation Parameters Window Parameter Default Enable Enable Owner None Configuration Mode Automatic Emulated LAN Type Unspecified Maximum Data Frame Size Unspecified Emulated LAN Name Default ELAN LE Server ATM Add
86. EC is the interface or virtual portion of an interface through which an endstation forwards data resolves addresses and provides other control functions The LE client provides the MAC level emulated Ethernet or Token Ring service interface to the higher level software It also controls the LAN emulation UNI LUNI interface when communicating with other devices on the emulated LAN LAN Emulation Configuration Server The LAN emulation configuration server LECS assigns individual LE clients to different emulated LANs The LECS does this by giving the client the ATM address of the LAN emulation server LES This method allows you to assign a client to an emulated LAN based on the client s physical location ATM address or the identity of a LAN destination it represents The LE client uses the configuration protocol to obtain information from the LECS This configuration protocol allows the LE client to locate the LES and set up a bidirectional control direct virtual channel connection The LE client automatically obtains all of the necessary configuration data including the LES address from the LECS 4 2 114056 Rev A Understanding ATM LAN Emulation Concepts LAN Emulation Server The LES controls and coordinates LE client access to the emulated LAN When an LE client joins an emulated LAN it registers its ATM address with the LES When it obtains the ATM address of the LE client the LES also obtains the physical location of
87. G Code ATM Layer Manager Inbound VC MOD RESPONSE Message FSM atmlmst ced vmr call ref 10 State VC MOD MSG WAIT Event VC MOD RSP ATM Layer Manager Outbound Connect Response 142 11 03 95 11 45 17 046 DEBUG SLOT 5 ATM SIG Code ATM Layer Manager Inbound Signalling Connection Status Indication 143 11 03 95 11 45 17 050 DEBUG SLOT 5 ATM SIG Code FSM atmlmst ced tcsi call ref 10 State NETWORK WAIT Event AMUIAMTCNSTIND ATM Layer Manager Outbound Open Indication 114056 Rev A Configuring ATM Services 144 11 03 95 11 45 17 050 DEBUG LEC Multicast Fwd open call indicate for LEC 3 VP VC 0 36 SLOT 5 ATM_LE Code 45 KKK KKK KK KK KKK KKK KK KKK KKK KKK AAA KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK The LEC has received an open indication for the multicast forward VC and can now inform upper layer applications that its services are available KKK KK KKK KKK KKK KK KK KKK AKA KK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK LEC API msg LE Event Response from LEC 3 UserHandle 15592560 TransId 00000000 Rx VCC Added Event from LEC 16308 VCC 0 36 145 11 03 95 11 45 17 050 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound OPEN VC RESP 146 11 03 95 11 45 17 132 TRACE SLO 5 ATM LE Code 41 LEC Calling SIG Bind LE 8023 DATA cct 3 bind id 1 147 11 03 95 11 45 17 132 DEB
88. Instructions MIB Object ID Site Manager Parameters Control Timeout Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 5 5 through 32767 Defines the timeout period used for timing out most request response control frame interactions Accept the default 5 or enter a value from 5 through 32767 1 3 6 1 4 1 18 3 5 9 5 20 1 1 10 Max Unknown Frame Count Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 1 1 through 10 Defines the maximum number of unknown frames an LE client can send within the interval specified with the Max Unknown Frame Time parameter A frame is considered unknown when the LE client does not recognize the destination MAC address In this case the unknown frame goes to the BUS for distribution This parameter helps to limit unknown frame traffic to the BUS Accept the default 1 or enter a value from 1 through 10 1 3 6 1 4 1 18 3 5 9 5 20 1 1 11 114056 Rev A A 35 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Max Unknown Frame Time Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 1 1 through 60 Defines the Maximum Unknown Frame Time value in seconds This value specifies the maximum amount of time allowed to send the number of unknown frames specified with the M
89. K KK KK Signaling uses SSCOP over VCC 0 5 Q SAAL is composed of SSCOP and SSCS Service Specific Convergence Sublayer If the log message SSCOP Status Indication PROT_ST_DN appears the SSCOP process is not operating on the router and the router clears all the SVCs KKK KKK KK KKK KKK KK KK KKK KR KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KKK KK KK 31 AT 32 AT AT ILMI ILMI 11 03 95 11 44 58 941 Layer Manager Inbound 11 03 95 11 44 58 949 Status Indication Layer Manager Inbound Layer Manager Inbound Status Indication DEBUG S ILMI Connec DEBUG S LO 5 ATM SIG tion Indication LO 5 ATM SIG ILMI Connection Confirm ILMI Status Indication su 0 PROT ST UP v 3 ui 3 ume 2 1i 2 Code 24 Code 24 114056 Rev A ATM Sample Log 33 11 03 95 11 44 58 949 INFO SLOT 5 ATM_SIG Code 6 Line 1405101 ATM ILMI active Line 1405101 ATM Signaling active KKK KKK KK KKK KKK KK KK KKK AXA KK KKK KKK KKK kk KKK KKK KKK KKK KKK KKK KKK KKK KK KK KKK KK KK ILMI and signaling router processes are operational and the router has established ILMI signaling communication with the switch KKK KK KKK KKK KK KKK KK KKK AKA AA KKK KKK KK KKK KKK KKK KKK KKK kk KKK KKK KKK KKK KK KKK KK KK 34 11 03 95 11 44 58 949 DEBUG SLOT 5 ATM Code 47 Spawning PVC Manager KKK KK KKK KKK KK AA AA KA XK AZ KKK KKK KKK KKK KKK KKK KKK KKK KKK K
90. KK KK KKK KKK KKK KKK KKK ck KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK The LE client received a response to its Config Request this response was parsed correctly The response contains information such as the LAN emulation server address for this LE client The MIB object wfAtmLecStatusEntry contains additional information about the emulated LAN that the ATM address LE client will join The MIB object wfAtmLecOperConfigEntry contains information about the operational parameters for this LEC KKK KKK KK KKK AA KKK KK KKK KR KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK 97 11 03 95 11 45 98 11 03 95 11 45 99 11 03 95 11 45 Event ATM VC RESERVI ATM Layer Manager Inbound AT FSM atmlmst cing rr 15 000 DEBUG SLO 5 ATM Layer Manager Inbound OPEN VC REQ 15 000 TRACE ATM SIG SLO 5 100 11 03 95 11 45 15 003 DEBUG ATM Layer Manager Outbound Connect Request ATM LE EC Called SIG Open VC cct 3 call ref 7 sig id 1 EC Transitioning into the ATM LEC JOIN state for cct 3 15 000 DEBUG SLOT 5 ATM SIG VC Reserve Respons SLOT 5 ATM SIG call ref 7 State RESERVE WAIT E RSP MS SLOT 5 ATM SIG 101 11 03 95 11 45 15 949 DEBUG Code Code Code Code Code 24 41 24 24 24 C 12 114056 Rev A ATM Layer M
91. KK KKK KKK KKK KKK KK KKK KK KK The PVC Manager spawns whether or not you define PVCs KKK KKK KK KKK KKK KK KK KKK KR KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK 35 11 03 95 11 44 58 953 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound ILMI Statistics Confirm ATM Layer Manager Inbound ILMI Status Confirm 36 11 03 95 11 44 58 957 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Address Registration Request mu_proc_addr_reg_msg received register request for unregistered network prefi 37 11 03 95 11 44 58 957 INFO SLO 5 ATM Code 2 Line 1405101 ATM Service activated on Interface 38 11 03 95 11 44 58 960 DEBUG SLOT 5 ATM Code 47 Atm Address Registration Failed Line 1405101 cct 3 Address 00000003 00000004 00000017 00000001 00000002 39 11 03 95 11 44 59 039 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound ILMI Add Indication 40 11 03 95 11 44 59 042 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound Address Registration Request 41 11 03 95 11 44 59 210 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound ILMI Add Confirm Succeeded to register address 39000000 00000000 00000000 000000a2 0e9fca00 114056 Rev A C 5 Configuring ATM Services 42 11 03 95 11 44 59 210 DEBUG SLOT 5 ATM Code 47 Atm Address Registration Successful Line 1405101 cct 3 Address 39000000 00000000 000000
92. KKK KKK LEC Control Packet Opcode FLUSH Req_Type RESPONSE Status SUCCESS Transaction_Id 00000007 Requestor LECID 0048 Flags 0000 Lan Type Unspec Max Frame Size Unspec Lan Names B Targ ATM Address 39000000000000000000000000 0000a20e9fca 00 Dest LAN Src ATM Address 39000000000000000000000000 0000a20d072e2 00 Oro LAN es KKK KKK KK ck ck ck KK KKK KK KKK AKA KR KKK KKK kk ck ck kk CK Ck Ck kk AA kk ck KK KK KKK KKK KK KKK KK KKK ck ck kk This LE client responds to the flush request since its ATM address matches the Target ATM Address KKK KK KKK KKK KKK KK KK KKK KR KKK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK 177 11 03 95 11 45 18 054 DEBUG SLOT 5 ATM_LE Code 45 EC LE ARP 15592614 second reverification timeout expired for LEC 3 178 11 03 95 11 45 18 054 TRACE SLOT 5 ATM_LE Code 41 EC LE ARP reverifying batch of bindings for LEC 3 179 11 03 95 11 45 18 054 DEBUG SLO 5 ATM LE Code 4 EC wees destination ff ftf ffiffiffi ft EC Control Packet Opcode ARP Reg Type REOUEST Transaction Id 00000000 Requestor LECID 0050 Flags 0000 Lan Type 802 3 114056 Rev A C 23 Configuring ATM Services Max Frame Size Unspec Lan Name Targ ATM Address 00000000000000000000000000 000000000000 00 Dest LAN ff ff ff ff ff ff Src ATM Ad
93. LAN 00 00 a2 0e 9f ca KKK KKK KK ck ck ck A A KKK KK KKK KKK KKK Sk ck Sk KKK ck kk CC Ck Ck AA kk KKK kk kk Ck Ck kk KKK KKK KK KKK KK KK The destination address is not complete However the request is destined for the well known LECS address as defined in the ATM Forum LAN Emulation over ATM specification KKK KKK KK ck ck ck KKK KK KK KKK AXA AXA AAA AA KKK ck kk KC Ck AAA kk KKK kk KK KK KKK KKK KK KK KKK KK kk 94 11 03 95 11 45 14 988 TRACE SLOT 5 ATM_LE Code 41 EC Transitioning into the ATM_LEC_CONFIGURE state for cct 3 95 11 03 95 11 45 14 996 DEBUG SLOT 5 ATM_LE Code 45 EC Control pkt Config frame received on Control VCC 0 32 EC Received pkt on Config Direct VCC EC Control Packet Opcode CONFIG Req_Type RESPONSE Status SUCCESS 114056 Rev A C 11 Configuring ATM Services Transaction Id 00fb7060 Max Frame Size Lan Name 29 Targ ATM Address Dest LAN 96 11 03 95 11 45 Src ATM Address Num TLVs 0 Lan Type 802 3 1516 Reguestor LECID 0050 0000 39000000000000000000000000 0800201a42c4 29 15 000 DEBUG SLOT 5 ATM LE Code 39000000000000000000000000 0000a20e9 ca 00 Src LAN 00 00 a2 0e 9f ca EC Config Resp LAN name is 29 EC LEC 3 received Config Response pkt EC Config Resp parsed successfully 45 KKK KK KKK KKK KK K
94. LLC SNAP or NULL as the encapsulation type for the service record RFC 1577 defines LLC SNAP as the encapsulation type for ATMARP Note For more information on how to create an SVC service record to run Classical IP refer to Chapter 1 e Add IP and IP routing protocols to the circuit e Configure ATMARP to run on the router as a client or a server Note For full compatibility with RFC 1577 you may have to specify a maximum transmission unit MTU size of 9188 bytes Refer to Configuring Line Services for additional information about setting the MTU size 3 4 114056 Rev A Understanding Classical IP over ATM Concepts For your convenience Appendix A describes ATM specific IP parameters necessary for Classical IP ATMARP operation over ATM Refer to ATMARP Configuration Parameter Descriptions for details Note If you remove and replace a link module that is configured to act as an ATMARP client the client loses connectivity until the ATMARP Server Reg Interval parameter for that client expires 900 second default This occurs only when the client is configured to autogenerate the ATM address user part refer to Chapter 6 for additional information on autogenerating ATM addresses Configuring an ATM Address for an Adjacent Host An adjacent host is a network device on the local LIS You must configure an ATM address for all hosts on the LIS that do not use ATMARP Appendix A describes ATM specific
95. M information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Chapter 9 Customizing ILMI Chapter 10 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 114056 Rev A Chapter 12 Customizing SAAL As defined by the ATM Forum the SAAL resides between the ATM layer and the Q 2931 signaling layer SAAL reliably transports signaling messages between peer Q 2931 entities over the ATM layer Figure 12 1 Data Q SAAL Encapsulation ATM Adaptation Layer AAL 5 ATM Layer Physical Layer ATMO0039A Figure 12 1 SVC PVC Signaling Protocol Stack Bay Networks routers support SAAL functions as defined in the ATM Forum ATM User Network Interface specification Versions 3 0 and 3 1 114056 Rev A 12 1 Configuring ATM Services Enabling or Disabling SAAL By default SAAL is enabled on an interface when you create the circuit However you can enable or disable signaling on an interface at any time Site Manager Enable page A 61 Defining the Link Connection Arbitration Link Connection Arbitration defines whether SAAL initiates link connections active the default value or wai
96. MARP refer to Configuring IP Services Parameter ATM ARP Mode Path Configuration Manager gt Protocols gt IP gt Interfaces Default Client Options Client Server Function Instructions MIB Object ID Specifies whether the router is running as an ATM client or server on this interface You must configure one ATMARP server for each LIS you define 1 3 6 1 4 1 18 3 5 3 2 1 4 1 112 Parameter ARP Server ATM Address Network Prefix Path Configuration Manager gt Protocols gt IP gt Interfaces Default None Options XX000000000000000000000000 to XXFFFFFFFFFFFFFFFFFFFFFFF where XX 39 45 or 47 Function Defines the ATM address network prefix of the ATMARP server on your network Instructions Enter the ATM address network prefix of the ATMARP server on your network MIB Object ID A complete ATM address consists of a network prefix and a user part Use the ARP Server ATM Address User Part parameter to supply the user part of the ATM address 1 3 6 1 4 1 18 3 5 3 2 1 4 1 113 114056 Rev A A 69 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID ARP Server ATM Address User Part Configuration Manager gt Protocols gt IP gt Interfaces None XX00000000000000 to FEFFFFFFFFFFFF Defines the user part suffix of the ATM address for the ATMARP server o
97. Manager Flush Timeout page A 38 8 8 114056 Rev A Customizing LAN Emulation Clients Entering a LECS ATM Address You can specify which LECS you want the LE client to use when opening a configuration VCC to the configuration service Entering this ATM address is optional if you do not enter an address the LEC uses the well known LECS ATM address to open a configuration VCC Site Manager LE Config Server ATM Address page A 39 Where to Go Next Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing signaling Chapter 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 114056 Rev A 8 9 Chapter 9 Customizing Signaling ATM signaling allows the router to dynamically establish maintain and clear a switched virtual connection at the UNI Using a series of messages as defined by the Q 2931 standard for signaling protocol Figure 9 1 the router 1 Assesses the availabi
98. Networks free 24 hour fax on demand service This automated system has libraries of technical and product documents designed to help you manage and troubleshoot your Bay Networks products The system responds to a fax from the caller or to a third party within minutes of being accessed To use InfoFACTS in the United States or Canada call toll free 1 800 786 3228 Outside North America toll calls can be made to 1 408 764 1002 In Europe toll free numbers are also available for contacting both InfoFACTS and CompuServe Please check our Web page for the listing in your country How to Get Help Use the following numbers to reach your Bay Networks Technical Response Center Technical Response Center Telephone Number Fax Number Billerica MA 1 800 2LANWAN 508 670 8765 Santa Clara CA 1 800 2LANWAN 408 764 1188 Valbonne France 33 92 968 968 Sydney Australia 612 9927 8800 612 9927 8811 Tokyo Japan 81 3 5402 0180 33 92 966 998 81 3 5402 0173 114056 Rev A XXXI Chapter 1 Starting ATM This chapter provides instructions for setting up an ATM interface to run the default PVC Classical IP or LANE configuration Before You Begin Before you can start ATM on your router you must 1 Open a configuration file 2 Specify router hardware if using a local mode configuration file 3 Select the link module interface on which you are ena
99. Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters SVC Inactivity Timeout Enable Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Enable Enable Disable If you select Enable the router disables any switched virtual circuit SVC on which the router receives or transmits no cells for the number of seconds you specify using the SVC Inactivity Timeout Secs parameter If you select Disable the router keeps SVCs open unless you close them by another method Select Enable or Disable 1 3 6 1 4 1 18 3 4 23 3 2 1 13 SVC Inactivity Timeout Secs Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes 1200 seconds 60 through 3600 seconds If the router receives or transmits no cells on an SVC for this number of seconds it closes the SVC providing that you set the SVC Inactivity Timeout Enable parameter to Enable Enter an appropriate time and be sure to set the SVC Inactivity Timeout Enable parameter to Enable 1 3 6 1 4 1 18 3 4 23 3 2 1 14 Framing Mode Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes SONET SDH SONET CBIT M23 G751 G832 Specifies the transceiver mode for the physical interface Select a transceiver mode as follows SDH or SONET for OC 3 modules CBIT or M23 for DS3 modules G751 or G832 for E3 modules 1 3 6 1 4 1 18 3 4 23 3 2
100. Region Telephone Number Fax Number United States and 1 800 2LANWAN enter Express Routing 508 670 8766 Canada Code ERC 290 when prompted 508 436 8880 direct Europe 33 92 968 300 33 92 968 301 Asia Pacific Region 612 9927 8800 612 9927 8811 Latin America 407 997 1713 407 997 1714 In addition you can receive information on support programs from your local Bay Networks field sales office or purchase Bay Networks support directly from your authorized partner xxviii 114056 Rev A Technical Support and Online Services Bay Networks Information Services Bay Networks Information Services provide up to date support information as a first line resource for network administration expansion and maintenance This information is available from a variety of sources World Wide Web The Bay Networks Customer Support Web Server offers a diverse library of technical documents software agents and other important technical information to Bay Networks customers and partners A special benefit for contracted customers and resellers is the ability to access the Web Server to perform Case Management This feature enables your support staff to interact directly with the network experts in our worldwide Technical Response Centers A registered contact with a valid Site ID can e View a listing of support cases and determine the current status of any open case Case history data includes severity designation and tel
101. SVC Inactivity Timeout Enable parameter to Enable Enter an appropriate time and be sure to set the SVC Inactivity Timeout Enable parameter to Enable 1 3 6 1 4 1 18 3 4 23 2 1 10 ATM FRE2 Physical Attributes Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Edit ATM FRE2 physical attributes only when configuring a SONET OC 3 line Framing Mode Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes SONET SDH SONET Specifies either SDH or SONET framing mode Select SDH or SONET 1 3 6 1 4 1 18 3 4 23 2 11 1 4 Scrambling Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Enable Enable Disable Enabling scrambling randomizes cell payload sufficiently to guarantee cell synchronization If you select Disable cell synchronization problems may result Select Enable or Disable 1 3 6 1 4 1 18 3 4 23 2 11 1 5 114056 Rev A A 7 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Loopback Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Disable Enable Disable Specifies whether or not to use loopback diagnostic mode on this line In loopback diagnostic mo
102. UG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Bind Request ATM Layer Manager Outbound Bind Request ATM Layer Manager Outbound Bind Confirm 148 11 03 95 11 45 17 136 TRACE SLOT 5 ATM_LE Code 41 Line 1405101 149 11 03 95 11 45 17 136 DEBUG SLOT 5 ATM SIG Code ATM Layer Manager Inbound Register Request ATM Layer Manager Outbound Register Confirm 150 11 03 95 11 45 17 140 TRACE SLO D ATM LE Code EC Calling SIG Register BLLI cct 3 bind id 1 sig id 3 reg id 5 151 11 03 95 11 45 17 148 DEBUG SLO 5 ATM SIG Code ATM Layer Manager Inbound Register Request 152 11 03 95 11 45 17 152 DEBUG SLO 5 ATM SIG Code ATM Layer Manager Outbound Register Confirm 153 11 03 95 11 45 17 160 TRACE SLO 5 ATM LE Code Line 1405101 Circuit 3 A EC Data SAP register confirm for reg id 4 Line 1405101 Circuit 3 A EC Data SAP register confirm for reg id 5 Circuit 3 EC Transitioning into the ATM LEC OPERATIONAL state for cct 3 ATM LEC Data SAP binding complete EC Calling SIG Register CP cct 3 bind id 1 sig id 3 reg id 4 24 41 24 24 37 C 18 114056 Rev A ATM Sample Log 154 11 03 95 11 45 17 175 DEBUG SLOT 5 ATMII LEC Control Packet Code 45 Lu Opcode ARP Req Type REQUEST Transaction Id 00000001 Requestor LECID 0050 Flags
103. VCs and control VCs on the ATM line When setting the SCR for ATM FRE2 ILI pairs keep the following in mind The SCR is essentially a future average By setting the SCR you are specifying the cell rate over time to which you want the VC to conform To be useful the SCR must not exceed the PCR e Ifyou know the user average rate set the SCR about 10 percent higher than this value e ATM FRE2 ILI pairs require a minimum SCR value of 300 cells s PVCs may fail to operate with SCR values less than 300 cells s When setting the SCR for ATM ARE ILI pairs and Model 5780 ATM routers keep the following in mind The SCR maps directly to the MCR 114056 Rev A 7 5 Configuring ATM Services The MCR provides guaranteed bandwidth for PVCs and control VCs while allowing sufficient bandwidth for SVCs to operate To be useful the SCR must not exceed the PCR If you know the user average rate set the SCR about 10 percent higher than this value ATM ARE ILI pairs and Model 5780 ATM routers require a minimum SCR value of 128 cells s VCs may fail to operate with SCR values less than 128 cells s ATM ARE ILI pairs and Model 5780 ATM routers allow you to enter an SCR value of 0 Entering 0 for the SCR turns off this function and specifies that the ATM router use best effort for SCR The E 3 framing mode setting affects the maximum SCR setting By default the SCR is set to 2358 cells s Table 7 2 lists the valid rang
104. a Services Subnetwork Access Protocol Simple Network Management Protocol Synchronous Optical Network synchronous payload envelope system resource module Service Specific Connection Oriented Protocol Service Specific Convergence Sublayer status shielded twisted pair switched virtual circuit transport overhead user network interface unshielded twisted pair variable bit rate virtual circuit virtual channel connection virtual channel identifier virtual channel link virtual path connection virtual path identifier wide area network 114056 Rev A XXV Configuring ATM Services Ordering Bay Networks Publications To purchase additional copies of this document or other Bay Networks publications order by part number from the Bay Networks Press at the following telephone or fax numbers Telephone U S Canada 1 888 4BAYPRESS Telephone International 1 510 490 4752 Fax 1 510 498 2609 You can also use these numbers to request a free catalog of Bay Networks Press product publications XXV 114056 Rev A Technical Support and Online Services To ensure comprehensive network support to our customers and partners worldwide Bay Networks Customer Service has Technical Response Centers in key locations around the globe e Billerica Massachusetts e Santa Clara California e Sydney Australia e Tokyo Japan e Valbonne France The Technical Response Centers are connected via a redundant Fr
105. ails you must edit Figure A 1 shows the window sequence for the line attributes category Configuration Manager window Edit ATM Connector window El ATM0040A Figure A 1 Line Attributes Window Seguence ATM FRE2 Line Details This section describes how to edit the line details for ATM FRE2 link modules Parameter Enable Path Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Default Enable Options Enable Disable Function Enables or disables the ATM circuit for this connector Instructions Select Enable or Disable MIB Object ID 1 3 6 1 4 1 18 3 4 23 2 1 1 2 114056 Rev A A 5 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Data Path Notify Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Enable Enable Disable Enables or disables the Data Path Notify function which disables the data path interface when the physical interface becomes nonoperational Accept the default Enable if you want to disable the data path interface when the physical interface becomes nonoperational Select Disable if you do not want the router to disable the data path interface when the physical interface becomes
106. ame Relay Network to a Common Problem Resolution system enabling them to transmit and share information and to provide live around the clock support 365 days a year Bay Networks Information Services complement the Bay Networks Service program portfolio by giving customers and partners access to the most current technical and support information through a choice of access retrieval means These include the World Wide Web CompuServe Support Source CD Customer Support FTP and InfoFACTS document fax service 114056 Rev A xxvii Configuring ATM Services Bay Networks Customer Service If you purchased your Bay Networks product from a distributor or authorized reseller contact that distributor s or reseller s technical support staff for assistance with installation configuration troubleshooting or integration issues Customers can also purchase direct support from Bay Networks through a variety of service programs As part of our PhonePlus program Bay Networks Service sets the industry standard with 24 hour 7 days a week telephone support available worldwide at no extra cost Our complete range of contract and noncontract services also includes equipment staging and integration installation support on site services and replacement parts delivery within approximately 4 hours To purchase any of the Bay Networks support programs or if you have questions on program features use the following numbers
107. ameter Path Default Options Function Instructions MIB Object ID Max Number of SVC Applications Configuration Manager gt Protocols gt ATM gt ATM Signaling This parameter also appears in the Initial ATM Signaling Config window 20 1 through 32767 Identifies the maximum number of service access points SAPs allowed for this circuit The number of SAPs corresponds to the number of LAN emulation or IP RFC 1577 clients allowed for the circuit Accept the default 20 or enter a value from 1 through 32767 1 3 6 1 4 1 18 3 4 23 1 7 1 6 Max Point to Point Connections Configuration Manager gt Protocols gt ATM gt ATM Signaling This parameter also appears in the initial ATM Signaling Config window 1000 0 through 32767 Identifies the maximum number of simultaneous point to point connections allowed for this circuit Accept the default 1000 or enter a value from 0 through 32767 1 3 6 1 4 1 18 3 4 23 1 7 1 7 Max Point to Multipoint Connections Configuration Manager gt Protocols gt ATM gt ATM Signaling This parameter also appears in the Initial ATM Signaling Config window 40 0 through 32767 Identifies the maximum number of simultaneous point to multipoint connections allowed for this circuit Accept the default 40 or enter a value from 0 through 32767 1 3 6 1 4 1 18 3 4 23 1 7 1 8 A 42 114056 Rev A Parameter Path Default Options Function Instructions MIB Obje
108. an adjust this value from 1 through 65535 cells AS a guideline use this formula to determine your MBS value Maximum Packet Size in bytes 48 bytes cell MBS value in cells for example 4608 bytes default 48 bytes cell 96 cells ATMO0016A For additional information about traffic parameters refer to ATM Traffic Parameters in Chapter 2 Site Manager Xmit Burst Size cells page A 30 114056 Rev A 7 7 Configuring ATM Services Modifying the Maximum AAL CPCS SDU Size The maximum AAL CPCS SDU value defines the maximum packet size you intend the VC to transmit or receive Setting the Transmit SDU Size We suggest that you accept the default value of 4608 bytes for maximum AAL CPCS SDU size that the VC supports in the transmit direction Most packet sizes fall well within this limit However you can set this value from 1 through 65535 bytes Site Manager Maximum AAL CPCS Transmit SDU Size page A 30 Setting the Receive SDU Size We suggest that you accept the default value of 4608 bytes for maximum AAL CPCS SDU size that the VC supports in the receive direction Most packet sizes fall well within this limit However you can set this value from 1 through 65535 bytes Site Manager Maximum AAL CPCS Receive SDU Size page A 31 Assigning a Data Encapsulation Type You can choose either LLC SNAP the default value or NULL data encapsulation to operate on the PVC Assi
109. anager Inbound Signalling Connection Status Indication 102 11 03 95 11 45 15 968 DEBUG SLOT 5 ATM_SIG Code ATM Layer Manager Inbound Signalling Connection Confirm FSM atmlmst cing tcc call_ref 7 State NETWORK WAIT Event AMUIAMTCONCFM 103 11 03 95 11 45 15 972 INFO SLOT 5 ATM Code Line 1405101 vpi vci 0 33 has been activated 104 11 03 95 11 45 15 972 INFO SLOT 5 ATMINTF Code Port 1 virtual channel VPI 0 VCI 33 call reference 7 activated 105 11 03 95 11 45 15 976 DEBUG SLOT 5 ATM SIG Code ATM Layer Manager Inbound VC MOD RESPONSE Message FSM atmlmst cing vmr call ref 7 State VC MOD MSG WAIT Event VC MOD RSP ATM Layer Manager Outbound Open Confirm 106 11 03 95 11 45 15 976 DEBUG SLOT 5 ATM LE Code EC opened Control Direct VCC for LEC 3 VP VC 0 33 EC Control Packet Opcode JOI Req_Type REQUEST Transaction_Id 00fb7b60 Requestor LECID 0000 Flags 0080 Lan Type 802 3 Max Frame Size 1516 Lan Name 29 107 11 03 95 11 45 15 980 DEBUG SLOT 5 ATM LE Code Targ ATM Address 00000000000000000000000000 000000000000 00 Dest LAN Src ATM Address 39000000000000000000000000 0000a20e9fca 00 Src LAN 00 00 a2 0e 9f ca 108 11 03 95 11 45 16 050 DEBUG SLO 5 ATM SIG Code ATM Layer Manager Inbound Signalling Connection Indication 109 11 03 95 11 45 16 054 DEBUG SLO 5 ATM SIG Code ATM Layer Manager Outbound Connection Status Reguest ATM Layer Manager Inbound ATM VC Reserve Respons FSM atmlmst ced rr
110. anager window provides global information about every ATM interface on the router For example if you configure four ATM link modules on the router and you select Service Records from the Protocols menu the ATM Service Records List window displays all of the service records that you have configured on the router To access an ATM attribute category window L Click on the Configuration Manager Protocols menu 2 Click on ATM 3 Click on the desired ATM attribute category in the menu To learn more about how to navigate within each ATM attribute category go to the section in this chapter that describes that category To learn more about how to edit the different ATM parameters go to the chapter that describes how to edit a specific attribute category 114056 Rev A A 3 Configuring ATM Services Table A 2 lists each attribute category and its location Table A 2 Finding Attribute Categories Attribute Category Go to Service Records Chapter 6 ATM Signaling Chapter 9 SAAL Chapter 12 ILMI Chapter 10 Interfaces Chapter 6 access to ATM line parameters Since line parameters are specific to an Note The Protocols menu in the Configuration Manager does not provide gt interface you can access these parameters through a specific ATM interface A 4 114056 Rev A Site Manager Parameters ATM Line Parameter Descriptions The type of ATM link module you use determines what line det
111. and book titles quotation marks Indicate the title of a chapter or section within a book xxii 114056 Rev A Acronyms screen text separator gt vertical line AAL ABR AFI ALC ARE ARP ATM BFE B ISDN BUS CMS CPCS CS CSU DCE DDN DSU DTE About This Guide Indicates data that appears on the screen Example Set Bay Networks Trap Monitor Filters Separates menu and option names in instructions and internal pin to pin wire connections Example Protocols gt AppleTalk identifies the AppleTalk option in the Protocols menu Example Pin 7 gt 19 gt 20 Indicates that you enter only one of the parts of the command The vertical line separates choices Do not type the vertical line when entering the command Example If the command syntax is show at routes nets you enter either show at routes or show at nets but not both ATM adaptation layer available bit rate authority and format identifier Adaptation Layer Controller ATM Routing Engine Address Resolution Protocol Asynchronous Transfer Mode Blacker front end encryption Broadband Integrated Services Digital Network broadcast and unknown server Connection Management System common part convergence sublayer convergence sublayer channel service unit data communications equipment Defense Data Network data service unit data terminal equipment 114056 Rev A xxiii Configuring ATM Services DXI ELAN ER FRE
112. and disclosure are as set forth in the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 Trademarks of Bay Networks Inc ACE AFN AN BCN BLN BN BNX CN FN FRE GAME LN Optivity PPX SynOptics SynOptics Communications Wellfleet and the Wellfleet logo are registered trademarks and ANH ASN BayeSIS BCNX BLNX EZ Install EZ Internetwork EZ LAN PathMan PhonePlus Quick2Config RouterMan SPEX Bay Networks Bay Networks Press the Bay Networks logo and the SynOptics logo are trademarks of Bay Networks Inc Third Party Trademarks All other trademarks and registered trademarks are the property of their respective owners Statement of Conditions In the interest of improving internal design operational function and or reliability Bay Networks Inc reserves the right to make changes to the products described in this document without notice Bay Networks Inc does not assume any liability that may occur due to the use or application of the product s or circuit layout s described herein Portions of the code in this software product are Copyright 1988 Regents of the University of California All rights reserved Redistribution and use in source and binary forms of such portions are permitted provided that the above copyright notice and this paragraph are duplicated in all such forms and that any documentation advertising materials and other materials related to such distribution and use acknowled
113. apter 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 114056 Rev A 2 29 Chapter 3 Understanding Classical IP over ATM Concepts RFC 1577 Classical IP and ARP over ATM describes an administrative entity within an ATM network called a logical IP subnet LIS Each ATM LIS consists of multiple network devices hosts and routers connected to the ATM network and configured with interfaces to the same IP subnetwork Each LIS operates and communicates independently of every other LIS in an ATM network A host connected to an ATM network communicates directly with other hosts in its own LIS To communicate with hosts in another LIS the host must use an IP router This router can connect to multiple LISs An ATM LIS must meet the following requirements e All members of the LIS hosts and routers must have the same IP network subnet number and address mask e All members must be directly connected to the ATM network using SVCs e All members must access hosts outside the LIS through a router e All members must be able to communicate by means of ATM with every other member of the LIS that is the virtual connection topology must be fully meshed An ATM LIS can replace an IP LAN In Figure 3 1 for example three IP host systems and an IP router
114. art Messages eee 9 9 Setting the Number of Allowable Status Enquiries eee 9 9 Pacing Calls EE 9 9 Where to Go Next e niea ct uno dosta dor nebe t u irate a eat 9 10 Chapter 10 Customizing ILMI Enabling or Disabling IM 10 1 Modifying ILMI Timers and Retry Counters sess 10 1 Setting the ILMI Get Timer u eee eee eee nenene ena nenn 10 2 Setting the ILMI Get Retry Count eee eee ee eee eee ee eee nene 10 2 Setting the ILMI Get Next Timer 2 eee eee eee eee eee nenene tana e nn 10 2 Setting the ILMI Get Next Retry Count z eee eee eee eee een nennen 10 2 Setting the ILMI Set Timer u eee eee eee eee een nea nh nK nK 10 3 Setting the ILMI Set Retry Count e eee eee ee eee nenene onen nan 10 3 Where to Go Next ide oma t ton RM ttn 10 4 Chapter 11 Customizing Signaling and ILMI Control VCs Redefining the Signaling Control VC sss nennen 11 1 Changing the Signaling VPI Number eee eee eee eee nene eee nn 11 1 Changing the Signaling VCI Number sse 11 1 Redefining the ILMI Control VO u eee eee eee eee enne nnns nene 11 2 Changing the ILMI VPI Number ssssseseeeeeeennneeennenen nnne nennen nennen 11 2 Changing the ILMI VCI Number u eee eee een nnne nennen nnne 11 2 114056 Rev A xiii Modifying Control VC Traffic Parameters sse 11 2 Setting the POR 5i e teda ar eot Ha ede 11 2
115. ax Retry Count Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 1 1 to2 Defines the maximum number of times a LAN emulation client can retry an LE_ARP_REQUEST following the original request for a given frame MAC address Accept the default 1 or enter 2 as the new value 1 3 6 1 4 1 18 3 5 9 5 20 1 1 14 Aging Time Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 300 10 through 300 Defines the maximum amount of time in seconds that a LAN emulation client can maintain an entry in its LAN emulation ARP cache without verifying the relationship of that entry Accept the default 300 or enter a value from 10 through 300 1 3 6 1 4 1 18 3 5 9 5 20 1 1 15 Forward Delay Time Configuration Manager gt Protocols gt ATM gt Service Records gt LEC 15 4 through 30 While there are no changes occurring in network topology this parameter defines the maximum amount of time in seconds that a LAN emulation client can maintain an entry in its LAN emulation ARP cache without verifying the relationship of that entry Accept the default 15 or enter a value from 4 through 30 1 3 6 1 4 1 18 3 5 9 5 20 1 1 16 114056 Rev A A 37 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function
116. ax Unknown Frame Count parameter For example if you use the defaults for these parameters a LAN emulation client can send up to one unknown frame within 1 second for any given MAC address without having to initiate the address resolution protocol ARP to resolve that MAC address This parameter helps to limit unknown frame traffic to the BUS Accept the default 1 or enter a value from 1 through 60 1 3 6 1 4 1 18 3 5 9 5 20 1 1 12 VCC Timeout Period Enable Configuration Manager gt Protocols gt ATM gt Service Records gt LEC Enable Enable Disable Defines the state of the virtual channel connection VCC timeout period When you enable this parameter a LAN emulation client may release any unused data direct or multicast send VCCs after the VCC timeout period expires The ATM drivers provide a timeout period of 20 minutes Accept the default Enable if you want this LAN emulation client to release unused data direct VCCs after the VCC timeout period expires Select Disable if you do not want this LAN emulation client to release unused data direct VCCs after the VCC timeout period expires 1 3 6 1 4 1 18 3 5 9 5 20 1 1 13 A 36 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters M
117. band ISDN Transport Network Elements Framework Generic Criteria December 1990 FA NWT 001110 Broadband ISDN Switching System Framework Generic Criteria December 1990 De Prycker M Asynchronous Transfer Mode Solution for Broadband ISDN Ellis Horwood Limited 1991 Grossman D Hoffman E Liaw F Malis A Mankin A and Perez M ATM Signaling Support for IP over ATM RFC 1755 Network Working Group February 1995 Handel R and Huber M Integrated Broadband Networks An Introduction to ATM Based Networks Reading Massachusetts Addison Wesley Publishing Company 1991 Heinanen J Multiprotocol Encapsulation over ATM Adaptation Layer 5 RFC 1483 Network Working Group July 1993 ITU T B ISDN ATM Adaptation Layer Service Specific Connection Oriented Protocol SSCOP Final Draft March 10 1994 Laubach M Classical IP and ARP over ATM RFC 1577 Network Working Group January 1994 2 28 114056 Rev A Where to Go Next Use the following table to determine where you want to go next Understanding ATM Concepts For information about Go to Starting ATM Chapter 1 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Ch
118. ber of retries to a value from 1 through 100 Site Manager ILMI Get Next Retry Count page A 55 10 2 114056 Rev A Customizing ILMI Setting the ILMI Set Timer The ILMI Set Request timer defines the amount of time allowed for the circuit to receive a SET_RESPONSE message after sending a SET_REQUEST message By default the circuit waits 3 seconds for a response However you can set this timer to a value from 1 through 120 seconds Site Manager ILMI Set Timer page A 55 Setting the ILMI Set Retry Count The ILMI Set Retry Count specifies the number of times the circuit can retransmit the ILMI SET_REQUEST message before it considers the link down By default the circuit can retransmit three 3 ILMI SET REOUEST messages However you can set the number of retries to a value from 1 through 100 Site Manager ILMI Set Retry Count page A 56 114056 Rev A 10 3 Configuring ATM Services Where to Go Next Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Chap
119. ble Enable ILMI VPI 0 ILMI VCI 16 ILMI Get Timer 3 ILMI Get Retry Count 3 ILMI Get Next Timer 3 ILMI Get Next Retry Count 3 ILMI Set Timer 3 ILMI Set Retry Count 3 Table B 15 ATM Control VC for ILMI Window Parameter Default Xmit Peak Cell Rate cells s 4716 Xmit Sustainable Cell Rate cells s 4716 Xmit Burst Size cells 40 Maximum AAL CPCS Transmit SDU Size 4608 Maximum AAL CPCS Receive SDU Size 4608 Table B 16 ATM ARP Configuration Window Parameter Default ATM ARP Mode Client ARP Server ATM Address Network Prefix None ARP Server ATM Address User Part None 114056 Rev A B 7 Appendix C ATM Sample Log The following log provides an example of a working ATM Ethernet LANE configuration To generate this level of message detail enable extended debugging in the wfAtmSigEntry and wfAtmllmiEntry MIB objects Note The messages in this example log file may change with subsequent releases of software 2 1 g wfA 2 1 g wfA wfAtmSscopEn 2 1 g wfA 2 1 g wfA tmInterfaceConf wfAtmInterfaceConfEntry wfA tmSigEntry wfAtmSigDebug wfAtmSigEntry wfAtmSigDebug 1405101 tmIlmiEntry wfAtmIlmiDebug wfAtmIlmiEntry wfAtmIlmiDebug 1405101 tmSscopEntry wfAtmSscopDebug try wfAtmSscopDebug 1405101 6 6 Entry wfAtmInterfaceDebug
120. bling ATM If you have guestions about how to perform any of these preliminary tasks refer to Configuring Routers The Technician Interface allows you to modify parameters by issuing set and commit commands with the management information base MIB object ID This process is equivalent to modifying parameters using Site Manager For more information about using the Technician Interface to access the MIB refer to Using Technician Interface Software Caution We strongly recommend that you use the Technician Interface for very minor MIB adjustments only The Technician Interface does not validate parameter entries Entering an invalid value can corrupt your configuration 114056 Rev A Configuring ATM Services Adding ATM to the Router Adding ATM to the router means 1 2 3 4 Creating an ATM circuit Defining an ATM service record Enabling protocols on an ATM service record Adding at least one virtual circuit PVCs only to that service record Creating an ATM Circuit To create an ATM circuit on an interface 1 Click on an ATM link module interface labeled ATM1 in the Configuration Manager window The Add Circuit window opens Click on OK The Initial ATM Signaling Config window opens Click on OK to accept the default settings or edit the parameters Refer to Appendix A for a detailed description of any parameter you may want to customize Click on OK The Edit ATM Connector window opens
121. bout the AFI byte refer to the ATM Forum UNI specification Version 3 0 Setting this parameter is optional If you do not enter an ATM Address Network Prefix in the range specified above the service record accepts the first prefix value that it receives from the switch 1 3 6 1 4 1 18 3 4 23 1 2 1 8 A 22 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Emulated LAN Name Configuration Manager gt Protocols gt ATM gt Service Records gt Add and Configuration Manager gt Protocols gt ATM gt Service Records Default ELAN Leave blank or enter up to 128 alphanumeric characters Identifies the name of the emulated LAN that this LE client joins when it joins an emulated LAN Clients that use Automatic configuration mode use this parameter in their LE CONFIGURE REQUEST frames Clients that use Manual configuration mode use this parameter in their LE JOIN REQUEST frames Entering an ELAN name is optional However if you do not enter an ELAN name the LAN emulation client server LECS assigns the LE client to an ELAN for this domain Either leave this parameter blank or enter an ELAN name up to 128 alphanumeric characters that identifies the emulated LAN you want this client to join 1 3 6 1 4 1 18 3 5 9 5 20 1 1 8 114056 Rev A A 23 Configuring ATM Services Parameter Emulated LAN Type Path Configuration Manager gt Protocols
122. bout LAN emulation as described by the ATM Forum For more information about LAN emulation refer to the ATM Forum document LAN Emulation Over ATM Version 1 0 Refer to Chapter 8 for instructions on how to customize LAN emulation on your ATM router LAN Emulation Basics LAN emulation allows virtual communication of traditional LAN devices and applications over an ATM network An ATM network can run one or more emulated LANs However each emulated LAN is independent of the others and devices cannot communicate directly across emulated LAN boundaries Note Communication between emulated LANs is possible through routers and bridges only possibly implemented on the same endstation LAN Emulation Connectivity An emulated LAN can provide Ethernet IEEE 802 3 or Token Ring IEEE 802 5 connectivity With an emulated Ethernet or Token Ring network over ATM software applications can interact as if they were connected to a traditional LAN Note Bay Networks currently supports only Ethernet IEEE 802 3 emulated LAN connectivity 114056 Rev A 4 1 Configuring ATM Services LAN Emulation Components Each ATM domain contains a LAN emulation configuration server and each emulated LAN comprises a group of LAN emulation clients a LAN emulation server LES and a broadcast and unknown server BUS These servers provide specific LAN emulation services LAN Emulation Clients The LAN emulation client LE client or L
123. cal nodes that is usually not to the end nodes The ATM adaptation layer AAL converts higher layer protocol data into formats that are compatible with the requirements of the ATM layer enabling ATM to handle different types of information all within the same format The AAL is divided into two sublayers the convergence sublayer CS and the segmentation and reassembly SAR sublayer These two sublayers convert variable length messages into 48 byte segments while ensuring the integrity of the data The CCITT now ITU T has defined different types of AALs to handle different kinds of traffic Bay Networks ATM routers support AAL 5 ATM Adaptation Layer AAL5 Bay Networks ATM routers support a CS function compatible with AAL 5 as defined in Section 1 of the CCITT now ITU T B ISDN Protocol Reference Model PRM In AAL 5 only a trailer attaches to the data from the higher layer protocols to create a CS PDU AAL 5 divides the PDU into a 48 octet SAR PDU however it does not add an SAR header and trailer This 48 octet SAR PDU becomes the payload of the ATM cell Figure 2 5 114056 Rev A 2 7 Configuring ATM Services Service Service data unit SDU class AAL 5 Convergence sou sublayer Trailer AAL layer AAL 5 SAR PDU layer ATM ATM cell IER Note AAL 5 does not attach an SAR header or trailer to the PDU ATM0005A Figure 2 5 ATM Adaptation Layer 5 Service Records and Virt
124. ces Enabling Protocols on an ATM Service Record Depending on the data encapsulation type and virtual connection type PVC or SVC you choose for the service record the router supports various protocols Supported Protocols Table 1 2 lists all supported protocols for standard PVCs and SVCs using LLC SNAP NLPID NULL or LANE 802 3 data encapsulation Table 1 2 Supported Protocols PVC Using LLC SNAP SVC Using LLC SNAP NLPID or NULL or NULL RFC 1577 SVC Using LANE 802 3 Bridge IP Bridge Spanning Tree RIP Spanning Tree Native Mode LAN BGP Native Mode LAN IP OSPF IP RIP RIP EGP BGP BGP OSPF OSPF DECnet IV BOOTP IPX IGMP RIP SAP DVMRP AppleTalk NetBIOS LLC2 DECnet IV DLSw IPX RIP SAP XNS RIP XNS AppleTalk 1 6 114056 Rev A Starting ATM Things to Remember When enabling protocols on a service record keep the following in mind A PVC service record requires that you add at least one PVC for the service record to operate Each ATM service record globally controls All protocols for any standard PVCs and SVCs that it contains All nonbridging protocols for any hybrid PVCs that it contains When you select either NULL or LLC SNAP data encapsulation to run on an SVC you automatically select the technology defined in RFC 1577 Classical IP and ARP over ATM This technology allows you to set up logical IP subnets within your ATM network a
125. ct ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Max Parties in Multipoint Connections Configuration Manager gt Protocols gt ATM gt ATM Signaling This parameter also appears in the Initial ATM Signaling Config window 1 0 through 32767 Identifies the maximum number of simultaneous parties in a point to multipoint connection allowed for this circuit Accept the default 1 or enter a value from 0 through 32767 1 3 6 1 4 1 18 3 4 23 1 7 1 9 Min Memory Threshold Configuration Manager gt Protocols gt ATM gt ATM Signaling 20 10 20 30 40 50 60 70 80 90 100 Defines the minimum percentage of buffer memory necessary to enable a new call Accept the default 20 or select another percentage 1 3 6 1 4 1 18 3 4 23 1 7 1 11 VPI Configuration Manager gt Protocols gt ATM gt ATM Signaling 0 0 through 255 Defines the virtual path identifier VPI for the signaling VC The signaling VC is a dedicated VPI VCI pair reserved for signaling messages Accept the default value 0 or enter a value from 0 through 255 1 3 6 1 4 1 18 3 4 23 1 7 1 13 Caution The signaling VC 0 5 and the ILMI VC 0 16 are reserved These VCs remain in an operational state as long as signaling is enabled on the ATM interface Because most ATM devices u
126. d signaling in the Initial ATM Signaling Config window the ATM Service Record Parameters window automatically changes the default for the Data Encapsulation Type parameter to Logical Link Control Subnetwork Access Protocol LLC SNAP and the Virtual Connection Type parameter to PVC 3 Change the Data Encapsulation Type parameter from LANE the default to LLC SNAP NLPID or NULL Note For an explanation of the different data encapsulation types and rules for assigning data encapsulation refer to Chapter 2 4 Change the Virtual Connection Type parameter from SVC to PVC Note You must press the return key or tab key to advance to the Virtual Connection Type parameter Pressing either key acknowledges the data encapsulation type selection If you neglect this step the Configuration Manager does not provide PVC as an option for the Virtual Connection Type parameter Refer to Appendix A for a detailed description of any parameter you may want to customize 5 Click on OK The Select Protocols window opens 6 Go to Enabling Protocols on an ATM Service Record later in this chapter Adding a Service Record for Classical IP To add a service record for Classical IP 1 Click on Service Attributes in the Edit ATM Connector window The ATM Service Records List window opens 2 Click on Add The ATM Service Record Parameters window opens 1 4 114056 Rev A 3 Starting ATM Change the Data Encap
127. d with that specific ATM interface connector 114056 Rev A A 1 Configuring ATM Services The Edit ATM Connector window separates the attribute buttons into the following categories Lines Interfaces Service Records Signaling Signaling AAL SAAL ILMI The Edit ATM Connector window also allows you to delete ATM from the interface entirely To open the Edit ATM Connector window 1 2 Click on an ATM link module interface labeled ATM1 in the Configuration Manager window Ifyou have not already enabled the interface the Add Circuit window opens Go to Chapter 1 to learn how to start ATM Ifthe interface is already enabled the Edit ATM Connector window opens Click on the desired attribute category To learn more about how to navigate within each ATM attribute category go to the section s in this chapter that describes that category To learn more about how to edit the different ATM parameters go to the chapter that describes how to edit a specific attribute category A 2 114056 Rev A Site Manager Parameters Table A 1 lists each attribute category and its location Table A 1 Finding Attribute Categories Attribute Category Go to Service Record Attributes Chapter 6 Interface Attributes Chapter 6 Line Attributes Chapter 5 ATM Signaling Chapter 9 SAAL Chapter 12 ILMI Chapter 10 Using the Menu Path The Protocols menu in the Configuration M
128. ddress parameter A 67 parameters MAC Address A 67 Next Hop Interface Addr A 67 IP Adjacent Host Address parameter A 67 IP interface editing 3 5 ISDN protocol model 2 6 to 2 7 J Join State LAN emulation 4 5 K Keep Alive Timer modifying 12 2 parameter description A 62 L LAN emulation Broadcast and Unknown Server BUS described 4 3 BUS Connect State 4 6 client described 4 2 client See also LEC components 4 2 to 4 3 concepts 4 1 to 4 6 Configuration Server LECS described 4 2 Configure State 4 5 customizing 8 1 to 8 9 enabling protocols for 1 7 Initial Registration State 4 6 Initial State 4 5 Join State 4 5 LECS Connect State 4 5 Operational State 4 6 parameters Aging Time A 37 Configuration Mode A 32 Control Timeout A 35 Emulated LAN Name A 23 A 34 Emulated LAN Type A 24 A 33 Enable A 32 Expected LE_ARP Response Time A 38 Flush Protocol A 39 Flush Timeout A 38 Forward Delay Time A 37 LE Config Server ATM Address A 39 LE Server ATM Address A 34 Max Retry Count A 37 Max Unknown Frame Count A 35 Max Unknown Frame Time A 36 Maximum Data Frame Size A 33 Owner A 32 Path Switching Delay A 38 VCC Timeout Period Enable A 36 retry counters modifying 8 5 to 8 7 Server LES described 4 3 states 4 4 to 4 6 timers modifying 8 5 to 8 7 LAN emulation configuration server described 4 2 LAN emulation server described 4 3 LANE defined 2 9 See
129. de the router retransmits received data to the sender Select Enable or Disable 1 3 6 1 4 1 18 3 4 23 2 11 1 7 Cell Insertion Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Unassigned Idle Unassigned In the absence of user cells the framer device fills idle bandwidth with either idle or unassigned cells Select Idle or Unassigned 1 3 6 1 4 1 18 3 4 23 2 11 1 49 A 8 114056 Rev A Site Manager Parameters ATM ARE Line Details Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID This section describes how to edit the line details for ATM ARE link modules and the Model 5780 ATM router Enable Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Enable Enable Disable Enables or disables the driver Select Enable or Disable 1 3 6 1 4 1 18 3 4 23 3 2 1 2 Interface MTU Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes 4608 1 through 9188 octets Specifies the largest packet size that the router can transmit on this interface Enter a value that is appropriate for the network 1 3 6 1 4 1 18 3 4 23 3 2 1 9 114056 Rev A A 9 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Functi
130. default 67 or enter an odd integer from 3 through 119 1 3 6 1 4 1 18 3 4 23 1 8 1 15 A 64 114056 Rev A Site Manager Parameters ATMARP Configuration Parameter Descriptions This section describes ATM specific IP parameters for implementing Classical IP over ATM For additional information about ATMARP refer to Configuring IP Services Parameter ATM ARP Mode Path Configuration Manager gt Protocols gt IP gt Interfaces Default Client Options Client Server Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Specifies whether ATMARP is running as a client or server on this interface You must configure one ATMARP server for each LIS you define 1 3 6 1 4 1 18 3 5 3 2 1 4 1 112 ARP Server ATM Address Network Prefix Configuration Manager gt Protocols gt IP gt Interfaces None XX000000000000000000000000 to XXFFFFFFFFFFFFFFFFFFFFFFFF where XX 39 45 or 47 Defines the ATM address network prefix of the ATMARP server on your network The XX byte must contain 39 45 or 47 These values define the authority and format identifier AFI The AFI byte identifies the group responsible for allocating the prefix and the format the prefix uses For more information about the AFI byte refer to the ATM Forum ATM User Network Interface Specification Version 3 0 The network prefix and the user part form a complete ATM address Enter the
131. dress 39000000000000000000000000 0000a20e9fca 00 Src BAN oe EC destination 00 00 a2 0d 72 e2 180 11 03 95 11 45 18 058 DEBUG SLOT 5 ATM LE Code 45 EC Control Packet Opcode ARP Req Type REQUEST Transaction Id 00000000 Requestor LECID 0050 Flags 0000 Lan Type 802 3 Max Frame Size Unspec Targ ATM Address 00000000000000000000000000 000000000000 00 Dest LAN 00 00 a2 0d 72 e2 Src ATM Address 39000000000000000000000000 0000a20e9fca 00 orc LANT 181 11 03 95 11 45 18 062 DEBUG SLOT 5 ATM_L EC Received LE ARP Request pkt for LEC 3 Code 45 Kl EC Control Packet Opcode ARP Req_Type REQUEST Transaction_Id 00000000 Requestor LECID 0050 Flags 0000 Lan Type 802 3 Max Frame Size Unspec Targ ATM Address 00000000000000000000000000 000000000000 00 Dest LAN 00 00 a2 0d 72 e2 C 24 114056 Rev A ATM Sample Log Src ATM Address 39000000000000000000000000 0000a20e9fca 00 SKO hANS ee not for us LEC 43 EC Received one of our LE ARP Responses back for LEC 3 EC Control Packet 182 11 03 95 11 45 18 066 DEBUG SLOT 5 ATM LE Code 45 Opcode ARP Req Type RESPONSE Status SUCCESS Transaction_Id 00000000 Requestor LECID 0050 Flags 0000 Lan Type 802 3 Max Frame Size Unspec Targ ATM Address 39000000000000000000000000 0000a20d72e2 00
132. dress of the ATM interface when automatically generating the endstation identifier portion of the ATM address user part Set this parameter to Disable if you want to use the MAC Address Override value when automatically generating the endstation identifier portion of the ATM address user part If you set this parameter to Disable you must enter a value for the MAC Address Override parameter 1 3 6 1 4 1 18 3 4 23 1 1 1 18 A 16 114056 Rev A Site Manager Parameters Parameter MAC Address Override Path Configuration Manager gt Protocols gt ATM gt Interfaces Default None Options Any valid MAC address Function Redefines the hardware MAC address for this interface Also defines the endstation identifier for this interface when automatically generating the user part suffix of an SVC service record ATM address Using the MAC Address Override parameter is very helpful when you want to hot swap ATM link modules For example when hot swapping ATM link modules you can enter the MAC address of the original ATM link module as the MAC Address Override value for the new ATM link module This allows you to keep the information you have already configured on the existing ATM link module while maintaining the integrity of the existing client information on the network Instructions Enter a valid MAC address MIB Object ID 1 3 6 1 4 1 18 3 4 23 1 1 1 19 ATM Service Record Parameter Descriptions Service reco
133. e LES address to obtain this information before it can join an emulated LAN If you select Manual configuration mode see following enter the LES address If you select Automatic configuration mode you do not have to enter this address the LE client receives the LES from the LAN emulation configuration server Site Manager LE Server ATM Address page A 34 8 2 114056 Rev A Customizing LAN Emulation Clients Selecting a Configuration Mode You can select a LEC to run in Automatic or Manual mode In Automatic mode the default selection the LE client uses the LES address it receives from the LAN emulation configuration server LECS to join an ELAN In Manual mode you must enter the LES address and the LAN type see the following section of the ELAN you want the LE client to join Site Manager Configuration Mode page A 32 Assigning an Emulated LAN Type You can assign a LE client to either join whatever ELAN the LECS assigns it to or allow it to join only Ethernet ELANs When you assign an unspecified LAN type the default selection the client obtains the LAN type from the LECS when it joins an ELAN When you assign IEEE8023 the client joins only Ethernet ELANs Note If you select Manual configuration mode refer to the preceding section you must specify a LEC LAN type Site Manager Emulated LAN Type page A 33 Setting the Maximum Data Frame Size The maximum data frame
134. e Records gt LEC Default ELAN Leave blank or enter up to 128 alphanumeric characters Identifies the name of the emulated LAN that this LE client joins when it joins an emulated LAN Clients that use Automatic configuration mode use this parameter in their LE CONFIGURE REQUEST frames Clients that use Manual configuration mode use this parameter in their LE JOIN REQUEST frames Entering an ELAN name is optional However if you do not enter an ELAN name the LAN emulation client server LECS assigns the LE client to an ELAN for this domain Either leave this parameter blank or enter an ELAN name up to 128 alphanumeric characters that identifies the emulated LAN you want this client to join 1 3 6 1 4 1 18 3 5 9 5 20 1 1 8 LE Server ATM Address Configuration Manager gt Protocols gt ATM gt Service Records gt LEC None Any valid ATM address Defines the LAN emulation server that this client uses when it starts The client uses the LAN emulation server to establish the Control Direct VCC You do not have to set this address when using Automatic configuration mode If you select Manual configuration mode enter the address of the LAN emulation server If you select Automatic configuration mode you do not have to enter this address 1 3 6 1 4 1 18 3 5 9 5 20 1 1 9 A 34 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function
135. e Relay networks you can use Network Layer Protocol ID NLPID RFC 1490 in an ATM environment for Frame Relay ATM internetworking You can assign NLPID encapsulation to PVC service records Selecting a Data Encapsulation Method Generally speaking the designers of these data encapsulation methods envisioned that NULL encapsulation would dominate in environments where dynamic creation of large numbers of ATM VCs is fast and economical These conditions usually exist in private ATM networks LLC SNAP encapsulation is an alternative for environments in which it is not practical to have a separate VC for each carried protocol for example if the ATM network supports only PVCs or if charging depends heavily on the number of simultaneous virtual circuits 2 10 114056 Rev A Understanding ATM Concepts The choice of multiplexing methods that two ATM stations use to exchange connectionless network traffic depends on the type of virtual circuit involved e For PVCs you select the multiplexing method when you manually configure the connection e For SVCs the stations themselves negotiate the multiplexing method by sending B ISDN signaling messages These messages include low layer compatibility information that allows negotiation of AALS and the carried encapsulation protocol Note Routed and bridged PDUs are always encapsulated within the payload field of the AALS CPCS PDU regardless of the selected multiplexing method
136. e message on the network The Drop Party Sent timer stops when the circuit receives a DROP PARTY ACKNOWLEDGE message indicating that the endpoint used for the party has been released or a RELEASE message indicating that the endpoint used for the party has been released and there are no remaining parties T399 1 through 84 Defines the Add Party Sent timer value in seconds This timer applies to multipoint connections only and begins when the circuit sends an ADD PARTY message to a party the receiver of the message on the network The Add Party Sent timer stops when the circuit receives an ADD PARTY ACKNOWLEDGE message indicating the connection to the party ADD PARTY REJECT message indicating the inability to add the party or a RELEASE message indicating the inability to add the party and the absence of any remaining parties If the timer expires before the circuit receives an ADD PARTY ACKNOWLEDGE ADD PARTY REJECT or RELEASE message the circuit clears the party Site Manager T303 page A 44 Site Manager T308 page A 45 Site Manager T309 page A 45 Site Manager T310 page A 46 Site Manager T313 page A 46 Site Manager T316 page A 47 Site Manager T316c page A 48 Site Manager T322 page A 49 Site Manager TDisc page A 49 Site Manager T398 page A 50 Site Manager T399 page A 50 9 8 114056 Rev A Customizing Signaling Defining Retransmissions The ATM ci
137. e rate set the SCR about 10 percent higher than this value ATM ARE ILI pairs and Model 5780 ATM routers require a minimum SCR value of 128 cells s VCs may fail to operate with SCR values less than 128 cells s ATM ARE ILI pairs and Model 5780 ATM routers allow you to enter an SCR value of 0 Entering 0 for the SCR turns off this function The E 3 framing mode setting affects the maximum SCR After you determine the transmission rate of your ATM device set the sustainable cell rate within the range specified under Options For ATM ARE ILI pairs and Model 5780 ATM routers you can enter 0 to turn off this function 1 3 6 1 4 1 18 3 4 23 1 5 1 9 114056 Rev A A 29 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Xmit Burst Size cells Configuration Manager gt Protocols gt ATM gt Service Records gt PVC 40 1 through 65535 For ATM FRE2 ILI pairs the maximum burst size MBS is the maximum length of a cell stream on a particular VC The MBS specifies the maximum number of sequential cells allowed on a VC at the peak cell rate before the VC must relinquish bandwidth to other VCs When you set the MBS we suggest that you select a value larger than the largest packet your PVC or control VC can transmit that is the Maximum AAL CPCS Transmit SDU size For example if your VC accepts packets that are less than 2358 bytes long PVC default set your MBS
138. e resulting software available for use by any third party Neither title nor ownership to Software passes to licensee Licensee shall not provide or otherwise make available any Software in whole or in part in any form to any third party Third parties do not include consultants subcontractors or agents of licensee who have licensee s permission to use the Software at licensee s facility and who have agreed in writing to use the Software only in accordance with the restrictions of this license Third party owners from whom Bay Networks has acquired license rights to software that is incorporated into Bay Networks products shall have the right to enforce the provisions of this license against licensee Licensee shall not remove or obscure any copyright patent trademark trade secret or similar intellectual property or restricted rights notice within or affixed to any Software and shall reproduce and affix such notice on any backup copy of Software or copies of software resulting from modification or combination performed by licensee as permitted by this license 114056 Rev A iii Bay Networks Software License continued 10 11 12 Licensee shall not reverse assemble reverse compile or in any way reverse engineer the Software Note For licensees in the European Community the Software Directive dated 14 May 1991 as may be amended from time to time shall apply for interoperability purposes Licensee must notify
139. ecord for ATMARP 2 eee eee eee een 3 4 Configuring an ATM Address for an Adjacent Host eeeeeeeeeeeeeeeeeeeenn 3 5 Editing an ATMARP IP Interface AAA 3 5 Where 6 Go TE E 3 6 114056 Rev A Chapter 4 Understanding ATM LAN Emulation Concepts LAN Emulation Basics cicer ceci eee dene dee ee deer Seege 4 1 LAN Emulation Connectivity sssssssssssssseseeeee enne nnne nennen enn nnne enn 4 1 LAN Emulation Components sse nennen ersten nsns 4 2 EAN Emulation Glients bedeuten eech nee iad 4 2 LAN Emulation Configuration Server sssssssseeeeeeenns 4 2 LAN Emulation Server AA 4 3 Broadcast and Unknown Server eee eee eee eee ener 4 3 Understanding LAN Emulation States 222 200 eeee eee eee eee ee een teen nn 4 4 lu EI TEE 4 5 LECS Connect State sessssssssssssssseeeee nennen entente nensis nes 4 5 ein le EE 4 5 JOIN STEI P P cages 4 5 Initial Registration State oo eecececeeceeeeeeceeeeeeeaeeeeeeeeesaeeeseaeeeceaeeeeeaaeeseeeeeeesaaeenenes 4 6 BUS Conn ct State i rire Laer cR p etd laa on edt ae 4 6 Operational State x6 cech tee o epa eiae ret piatti 4 6 Where to Go Next dereen 4 7 Chapter 5 Customizing an ATM Line Modifying ATM FRE2 Line Details essent 5 1 Enabling and Disabling the ATM Line eee eee eee en 5 1 Enabling and Disabling Data Path Notify eee
140. en you disconnect the cable from the interface the router disables the data path interface after a time you specify By disabling this function the router does not disconnect the data path interface and continues to send information to the higher level software Site Manager Data Path Enable page A 10 114056 Rev A 5 5 Configuring ATM Services Specifying a Data Path Notify Timeout When you enable the Data Path function you must also specify how long you want the ATM router to wait before implementing this function By default when the state of the physical interface changes from operational to nonoperational the timer waits 1 second before implementing the Data Path function However you can adjust this value from 0 through 3600 seconds Site Manager Data Path Notify Timeout page A 10 Enabling or Disabling SVC Inactivity Timeout By enabling the SVC Inactivity Timeout function the default the router automatically disables any SVCs that have not received or transmitted any cells for the period of time you specify see the section below If you disable the SVC inactivity timeout function all SVCs on the line remain open until you close them by another method Site Manager SVC Inactivity Timeout Enable page A 11 Specifying an SVC Inactivity Timeout In Seconds When you enable the SVC Inactivity Timeout function you must also specify how long you want the ATM router to wait before im
141. ephone e mail or other logs associated with the case e Customize the listing of cases according to a variety of criteria including date severity status and case ID e Log notes to existing open cases e Create new cases for rapid efficient handling of noncritical network situations Communicate directly via e mail with the specific technical resources assigned to your case The Bay Networks URL is http www baynetworks com Customer Service is a menu item on that home page Customer Service FTP Accessible via URL ftp support baynetworks com 134 177 3 26 this site combines and organizes support files and documentation from across the Bay Networks product suite including switching products from our Centillion and Xylogics business units Central management and sponsorship of this FTP site lets you quickly locate information on any of your Bay Networks products 114056 Rev A XXIX Configuring ATM Services Support Source CD This CD ROM sent quarterly to all contracted customers is a complete Bay Networks Service troubleshooting knowledge database with an intelligent text search engine The Support Source CD contains extracts from our problem tracking database information from the Bay Networks Forum on CompuServe comprehensive technical documentation such as Customer Support Bulletins Release Notes software patches and fixes and complete information on all Bay Networks Service programs
142. er Xmit Peak Cell Rate cells s page A 27 7 4 114056 Rev A Customizing PVCs Setting the SCR For ATM FRE2 ILI pairs the SCR is the upper bound on the conforming average rate of an individual PVC or control VC In this definition average rate is the number of cells transmitted over the link divided by the duration of the connection The duration of the connection equals the total amount of time it takes from connection setup to connection release The SCR allows you to define future cell flow on a PVC or control VC in greater detail than by just using the PCR For ATM FRE2 ILI pairs the SCR controls the rate over time not at a specific instant of time and can help you more efficiently use your network resources In other words the SCR allows sufficient bandwidth for operation but does not allow a bandwidth as high as the PCR For ATM ARE ILI pairs and Model 5780 ATM routers the SCR value maps directly to a minimum cell rate MCR value In other words when you configure the SCR on one of these devices you actually configure the MCR Instead of defining the upper bound of an average rate like the SCR the MCR defines the minimum amount of guaranteed bandwidth allowed for PVCs and control VCs on the ATM line The MCR that is SCR not only controls the rate over time it guarantees this rate In other words the SCR provides sufficient bandwidth for SVC operation but at the same time guarantees the bandwidth for P
143. er either explicitly or implicitly except by acceptance of an order for either Software or for a Bay Networks product Equipment that is packaged with Software Each such license is subject to the following restrictions 1 Upon delivery of the Software Bay Networks grants to licensee a personal nontransferable nonexclusive license to use the Software with the Equipment with which or for which it was originally acquired including use at any of licensee s facilities to which the Equipment may be transferred for the useful life of the Equipment unless earlier terminated by default or cancellation Use of the Software shall be limited to such Equipment and to such facility Software which is licensed for use on hardware not offered by Bay Networks is not subject to restricted use on any Equipment however unless otherwise specified on the Documentation each licensed copy of such Software may only be installed on one hardware item at any time Licensee may use the Software with backup Equipment only if the Equipment with which or for which it was acquired is inoperative Licensee may make a single copy of the Software but not firmware for safekeeping archives or backup purposes Licensee may modify Software but not firmware or combine it with other software subject to the provision that those portions of the resulting software which incorporate Software are subject to the restrictions of this license Licensee shall not make th
144. er gt Protocols gt ATM gt Interfaces Enable Enable Disable Specifies whether ATM signaling is enabled or disabled for this interface Signaling allows you to configure switched features for example SVCs and LANE on the interface If you do not intend to configure any switched features on this interface that is you want this interface to run only PVCs disabling this parameter makes additional system resources available Accept the default Enable if you want to enable signaling on this interface Set the state to Disable if you want to disable signaling on this interface 1 3 6 1 4 1 18 3 4 23 1 1 1 16 114056 Rev A Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Use Hardware MAC Address Configuration Manager gt Protocols gt ATM gt Interfaces Enable Enable Disable Specifies whether or not to use the hardware MAC address for this interface When enabled the Configuration Manager uses the ATM hardware MAC address of the link module for the endstation identifier when automatically generating the user part suffix of an SVC service record ATM address When disabled the Configuration Manager uses the value specified in the MAC Address Override parameter to define the endstation identifier when automatically generating the user part suffix of an SVC service record ATM address Accept the default Enable if you want to use the MAC ad
145. er Inbound Signalling Connection Confirm FSM atmlmst cing tcc call ref 6 State NETWORK WAIT Event AMUIAMTCONCEM 89 11 03 95 11 45 14 984 INFO SLOT 5 ATM Code 8 Line 1405101 vpi vci 0 32 has been activated KKK KKK KK KKK KK AA KKK KKK KR KKK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK The router successfully opened the VCC that the Config Direct VC uses KKK KKK KK KKK KKK KK KK KKK AKA AA KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KK KK KKK 90 11 03 95 11 45 14 984 INFO SLOT 5 ATMINTF Code 15 Port 1 virtual channel VPI 0 VCI 32 call reference 6 activated C 10 114056 Rev A ATM Sample Log 91 11 03 95 11 45 14 984 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound VC MOD RESPONSE Message FSM atmlmst cing vmr call_ref 6 State VC MOD MSG WAIT Event VC MOD RSP ATM Layer Manager Outbound Open Confirm 92 11 03 95 11 45 14 984 DEBUG SLOT 5 ATM LE Code 45 EC opened Config Direct VCC 0 32 EC Control Packet Opcode CONFIG Req_Type REQUEST 93 11 03 95 11 45 14 988 DEBUG SLO 5 ATM_LE Code 45 Transaction Id 00fb7b60 Requestor LECID 0000 Flags 0000 Lan Type Unspec Max Frame Size Unspec Lan Name Targ ATM Address 00000000000000000000000000 000000000000 00 Dest LAN Src ATM Address 39000000000000000000000000 0000a20e9fca 00 Src
146. es Setting the SCR For ATM FRE2 ILI pairs the SCR is the upper bound on the conforming average rate of an individual PVC or control VC In this definition average rate is the number of cells transmitted over the link divided by the duration of the connection The duration of the connection equals the total amount of time it takes from connection setup to connection release The SCR allows you to define future cell flow on a PVC or control VC in greater detail than by just using the PCR For ATM FRE2 ILI pairs the SCR controls the rate over time not at a specific instant of time and can help you more efficiently use your network resources In other words the SCR allows sufficient bandwidth for operation but does not allow a bandwidth as high as the PCR For ATM ARE ILI pairs and Model 5780 ATM routers the SCR value maps directly to a MCR value In other words when you configure the SCR on one of these devices you actually configure the MCR Instead of defining the upper bound of an average rate like the SCR the MCR defines the minimum amount of guaranteed bandwidth allowed for PVCs and Control VCs on the ATM line The MCR that is SCR not only controls the rate over time it guarantees this rate In other words the SCR provides sufficient bandwidth for SVC operation but at the same time guarantees the bandwidth for PVCs and control VCs on the ATM line When setting the SCR for ATM FRE2 ILI pairs keep the following in mind
147. es for each Bay Networks ATM router Table 7 2 Valid SCR Ranges ATM Routers Range Cells s ATM FRE2 OC 3 SONET SDH ILI pairs 300 through 365566 ATM ARE OC 3 SONET SDH ILI pairs 0 128 through 353207 Model 5780 0 128 through 353207 ATM ARE DS 3 ILI pairs 0 128 through 96000 ATM ARE E 3 ILI pairs G832 Framing Mode 0 128 through 80000 ATM ARE E 3 ILI pairs G751 Framing Mode 0 128 through 72000 For additional information about traffic parameters refer to ATM Traffic Parameters in Chapter 2 Site Manager Xmit Sustainable Cell Rate cells s page A 28 7 6 114056 Rev A Customizing PVCs Setting the MBS For ATM FRE2 ILI pairs the MBS is the maximum length of a cell stream allowed on a particular VC The MBS specifies the maximum number of sequential cells allowed on a VC before that VC must relinquish bandwidth to other VCs waiting to transmit This burst occurs at or close to the Peak Cell Rate When you set the MBS we suggest that you select a value larger than the largest packet your PVC or control VC can transmit that is the Maximum AAL common part convergence sublayer CPCS Transmit service data unit SDU size For example if your VC accepts packets that are less than 2358 bytes long PVC default set your MBS value between 45 and 50 cells Note ATM ARE ILI pairs ignore the maximum burst size By default the MBS is set to 40 cells However you c
148. es the upper traffic limit in cells second that the ATM connection can submit How you set the peak cell rate depends on The optical transmission rate of your ATM device The amount of traffic you expect on a particular VC The rate you desire for each VC After you determine the transmission rate of your ATM device set the peak cell rate within the range specified above 1 3 6 1 4 1 18 3 4 23 1 5 1 8 A 56 114056 Rev A Site Manager Parameters Parameter Xmit Sustainable Cell Rate cells s Path Configuration Manager gt Protocols gt ATM gt ATM Signaling gt Sig VC or Configuration Manager gt Protocols gt ATM gt ILMI Signaling gt ILMI VC Default 4716 Options 300 through 365566 ATM FRE2 OC 3 SONET SDH ILI pairs 0 128 through 353207 ATM ARE OC 3 SONET SDH ILI pairs and Model 5780 ATM routers 0 128 through 96000 ATM ARE DS 3 ILI pairs 0 128 through 80000 ATM ARE E 3 ILI pairs G832 Framing Mode 0 128 through 72000 ATM ARE E 3 ILI pairs G751 Framing Mode Function Specifies the upper limit of the ATM connection conforming average rate The average rate equals the total number of cells transmitted divided by the duration of the connection Using the sustainable cell rate SCR you can define the future cell flow of a VC in greater detail than by just using the peak cell rate For ATM FRE2 ILI pairs specifying the SCR controls the rate over time not at a specific instant of time and ca
149. eserved These VCs remain in an operational state as long as signaling is enabled on the ATM interface Because most ATM devices use these VPI VCI pairs for signaling we recommend that you not change these values 114056 Rev A A 53 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID ILMI VCI Configuration Manager Protocols ATM ILMI Signaling 16 1 through 65535 Defines the virtual channel identifier VCI for the ILMI VC Accept the default 16 or enter a value from 1 through 65535 1 3 6 1 4 1 18 3 4 23 1 9 1 9 el Caution The signaling VC 0 5 and the ILMI VC 0 16 are reserved These VCs remain in an operational state as long as signaling is enabled on the ATM interface Because most ATM devices use these VPI VCI pairs for signaling we recommend that you not change these values Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID ILMI Get Timer Configuration Manager Protocols ATM ILMI Signaling 3 1 through 120 Defines the ILMI Get Request timer value in seconds The Get Request timer sets the amount of time allowed to receive a GET RESPONSE message after sending a GET REQUEST message Accept the default 3 or enter a value from 1 through 120 1 3 6 1 4 1 18 3 4 23 1 9 1 13 ILMI Get Retry Count Configuration Ma
150. eter Path Default Options Function Instructions MIB Object ID ATM Addr User Part Configuration Manager gt Protocols gt ATM gt Service Records gt Add and Configuration Manager gt Protocols gt ATM gt Service Records None 00000000000000 through FEFFFFFFFFFFFF The Configuration Manager allows you to autogenerate this parameter see the User Part Autogeneration parameter Depending on the settings in the ATM Interface Attributes window this parameter can autogenerate this address using The 6 byte hardware MAC address of the ATM interface A MAC Address Override value that you specify In both cases autogeneration creates a unique selector byte for each service record on the interface Enter a value in the range specified 1 3 6 1 4 1 18 3 4 23 1 2 1 9 ATM Addr Net Prefix Optional Configuration Manager gt Protocols gt ATM gt Service Records gt Add and Configuration Manager gt Protocols gt ATM gt Service Records None XX000000000000000000000000 through XXFFFFFFFFFFFFFFFFFFFFFFFF where XX 39 45 or 47 Defines the Network Prefix of the ATM address for this service record The network prefix specifies the ATM domain of which this service record is a part The XX byte must contain 39 45 or 47 These values define the authority and format identifier AFI The AFI byte identifies the group responsible for allocating the prefix and the format the prefix uses For more information a
151. feature allows you to define whether you want unassigned cells the default selection or idle cells Idle cells are only visible at the physical layer Unassigned cells are not only visible at the physical layer which treats them as standard ATM cells but also at the ATM layer Site Manager Cell Insertion page A 8 5 4 114056 Rev A Customizing an ATM Line Modifying ATM ARE and Model 5780 ATM Router Line Details This section describes how to edit the line details for ATM ARE link modules and Model 5780 ATM routers Enabling or Disabling the Line Driver By default when you create an ATM circuit the line driver is enabled You can enable or disable the line driver for the specific connector without having to remove the physical line from the ATM receptacle Site Manager Enable page A 9 Defining the Interface MTU The MTU is the largest possible unit of data that the physical medium can transmit By default the interface allows an MTU size of 4608 octets This value can handle most packet sizes However you can set this value anywhere from 1 through 9188 octets Site Manager Interface MTU page A 9 Enabling and Disabling the Data Path Function This function specifies whether the router disables the interface between the driver and the higher level software the data path interface when you disconnect the cable from the ATM interface By selecting Enable the default wh
152. fic Parameters AA 7 3 Settingithe PGR Med dddot o ts 7 3 Setting the SCR eee i EC Edu UE d e pee aat D HR ata 7 5 setting the Meer 146 eat lad doo ie iat Aah atl oh EE tea 7 7 Modifying the Maximum AAL CPCS SDU Size 2 eee eee eee een 7 8 Setting the Transmit SDU Size ou eee 2 2 2222 eeeee seca aaeeeeeeeeseeaeeeeaaeeseeaeeesaeeeee 7 8 Setting the Receive SDU Size eee eee eee ena een nnne nnn 7 8 Assigning a Data Encapsulation Type eee enne 7 8 Where to Go Next tegen erte nih tien hee A een teles 7 9 Chapter 8 Customizing LAN Emulation Clients Enabling or Disabling LANE 8 1 RN E BE E 8 1 Specifying an Owner o oo seeeeeececeeeeeeece cece eeeeaeeeecaeeeeeaaeseaeeecaaaesegeeeseeaeseseeeeeeeaeeneeaaeenes 8 2 Entering an ELAN El 8 2 Entering a LES ATM Address cccccceeseeeeeeeeeeeeeeeeeeecaeeeseaeeeseaeeeesaaeeseneeeetaeeseenes 8 2 Selecting a Configuration Mode sss 8 3 Assigning an Emulated LAN Type eee eee eee nenene nenene 8 3 Setting the Maximum Data Frame Size sse 8 3 Controlling Unknown Frame Distribution ssssssseeeenneenenn 8 4 Setting a Maximum Unknown Frame Count eee eee 8 4 Specifying a Maximum Unknown Frame Time eee eee 8 5 Modifying LANE Timers and Retry Counters u eee eee eee eee nenene nn 8 5 Setting the Control Timeout 2 2 2220 ee eee ee eee ea nee eee nennen nnns enn 8 5 Enabling or Disabling the VCC Timeout Period
153. for required information If you need assistance in responding to any queries consult the appropriate protocol specific guide When you finish configuring the protocols the ATM Virtual Channel Link window opens Note If you are adding protocols to a PVC service record you must add at least one PVC for that service record to operate To add a PVC to a PVC service record 1 Click on Add in the ATM Virtual Channel Link window The ATM Virtual Channel Link Parameters window opens Supply the following information A VPI virtual path identifier number This number identifies the virtual path of the PVC The VPI is part of the cell header The header can contain a maximum of 8 VPI bits for a UNI connection This bit range allows for path identifiers from 0 through 255 Site Manager VPI Number page A 25 A VCI virtual channel identifier number This number identifies the virtual channel of the PVC The VCI is part of the cell header The header can contain a maximum of 16 VCI bits This bit range allows for channel identifiers from 0 through 65535 Site Manager VCI Number page A 26 1 8 114056 Rev A Starting ATM Note Following the recommendation of the ATM Forum virtual channel identifiers from 0 through 31 are reserved for signaling and added functionality 3 Click on OK The Configuration Manager returns you to the ATM Virtual Channel Link window If you want t
154. frames Site Manager Protocol Standard page A 41 Specifying the Maximum Number of SVC Applications You can specify the maximum number of SVC applications or SAPs that you want to operate on the circuit The number of SAPs corresponds to the number of LANE or IP RFC 1577 clients allowed for the circuit By default you can have up to 20 SVC applications on the circuit However you can specify a value from 1 through 32767 Site Manager Max Number of SVC Applications page A 42 9 2 114056 Rev A Customizing Signaling Setting Connection Thresholds Connection thresholds allow you to control how many point to point connections point to multipoint connections and parties in a multipoint connection that you want on the circuit at any given time Defining Maximum Point to Point Connections By default you can have up to 1000 simultaneous point to point connections on a circuit at any given time However you can specify a value from 0 through 32767 connections Site Manager Max Point to Point Connections page A 42 Defining Maximum Point to Multipoint Connections By default you can have up to 40 simultaneous point to multipoint connections on a circuit at any given time However you can specify a value from 0 through 32767 connections Site Manager Max Point to Multipoint Connections page A 42 Defining Maximum Parties in Multipoint Connections By default yo
155. fy a short line the default for a line less than 225 ft long Specify a long line for a line length of 225 ft or more Site Manager DS3 Line Build Out page A 12 Turning On and Off DS3 Scrambling Some ATM network equipment can exhibit sensitivity to certain bit patterns for example 101010 or 000000 This sensitivity can cause problems in the ATM network Turning on the DS3 Scrambling feature the default setting randomizes the bit pattern in the cell payload sufficiently to guarantee cell synchronization Though some equipment may have the ability to operate with scrambling disabled we recommend that you scramble the cell payload Note ATM devices with different scrambling settings cannot communicate For example if you configure a router to enable scrambling and configure a hub to disable scrambling the router and hub cannot communicate Site Manager DS3 Scrambling page A 13 5 8 114056 Rev A Where to Go Next Use the following table to determine where you want to go next Customizing an ATM Line For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Chapter
156. fying an SVC Inactivity Timeout In Seconds When you enable the SVC Inactivity Timeout function you must also specify how long you want the ATM router to wait before implementing this function By default if the router does not receive or transmit any cells for 1200 seconds the SVC Inactivity Timeout function activates However you can adjust this value from 60 through 3600 seconds Site Manager SVC Inactivity Timeout Secs page A 7 5 2 114056 Rev A Customizing an ATM Line Modifying ATM FRE2 Physical Attributes The physical attributes of the ATM line include framing information transmission checks and how ATM treats the line under certain conditions for example when the line is idle Assigning the Framing Mode You can assign an ATM line to use either SONET or SDH framing mode By default the ATM line uses SONET framing This method uses a 51 84 Mb s synchronous transport signal STS 1 as a basic building block to provide the OC 3 frame for example the STS 3 OC 3 frame has a rate of 3 x 51 84 Mb s or 155 52 Mb s The SONET frame format consists of 90 x 9 bytes and is divided into two main areas the synchronous payload envelope SPE and the transport overhead TOH The SPE contains the core data that the frame is transporting The TOH contains the enhanced operations administration maintenance and provisioning OAM amp P information Synchronous Digital Hierarchy SDH provides the fram
157. g for example different types of data encapsulation Figure 2 7 2 14 114056 Rev A Upper layer protocol Figure 2 7 Understanding ATM Concepts ATM physical interface Service record siea I I se I I I Service PVC I u 1 u I 1 record ATM0020A One PVC per Service Record Assigning one PVC per service record allows you to dedicate a PVC to a particular protocol but at the expense of some configuration overhead memory and address space This type of configuration is best suited to small nonmeshed configurations or to configurations in which protocols must reside on separate PVCs Note The maximum number of PVCs you can configure in this way varies depending on the configuration of the router the number of protocols running on the circuits and the number of routing entries Hybrid Access PVCs do not typically allow for bridging in nonmeshed environments If your network combines bridging and routing over the same interface you need to use the service record portion of each PVC for routing while at the same time allow bridging to operate To do this you must define the PVC as a hybrid bridged VC Defining the PVC as a hybrid bridged VC allows the bridge to view each PVC as a separate bridge interface while allowing the routing protocols to view all PVCs as part of the same interface Figure 2 8 114056 Rev A 2 15 Configuring ATM Services Use hybr
158. ge that such portions of the software were developed by the University of California Berkeley The name of the University may not be used to endorse or promote products derived from such portions of the software without specific prior written permission SUCH PORTIONS OF THE SOFTWARE ARE PROVIDED AS IS AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE In addition the program and information contained herein are licensed only pursuant to a license agreement that contains restrictions on use and disclosure that may incorporate by reference certain limitations and notices imposed by third parties ii 114056 Rev A Bay Networks Software License Note This is Bay Networks basic license document In the absence of a software license agreement specifying varying terms this license or the license included with the particular product shall govern licensee s use of Bay Networks software This Software License shall govern the licensing of all software provided to licensee by Bay Networks Software Bay Networks will provide licensee with Software in machine readable form and related documentation Documentation The Software provided under this license is proprietary to Bay Networks and to third parties from whom Bay Networks has acquired license rights Bay Networks will not grant any Software license whatsoev
159. ge to the network This message checks the validity of a call by reguesting the call state that is the state of an active call the state of a call in progress or the Null state if the call reference does not relate to an active call or a call in progress The Status Enguiry Sent timer stops when the circuit receives a STATUS message from the network If the timer expires before the circuit receives a STATUS message the circuit can transmit as many STATUS ENQUIRY messages as specified with the Num Stat Enquiries ReXmitted parameter If the circuit still does not receive a response the circuit clears the call Accept the default 4 or enter a value from 1 through 24 1 3 6 1 4 1 18 3 4 23 1 7 1 32 TDisc Configuration Manager gt Protocols gt ATM gt ATM Signaling 4 1 through 180 Defines the SAAL Data Link Disconnect timer value in seconds This internal timer alerts upper layers that the link is down The timer begins if the entire link goes down for any reason When the link goes down the SAAL layer sends a DISCONNECT REQUEST message to the upper layer application manager The SAAL layer sends a disconnect request every time the SAAL Data Link Disconnect timer expires and continues to send this message until the link becomes operational Accept the default 4 or enter a value from 1 through 180 1 3 6 1 4 1 18 3 4 23 1 7 1 33 114056 Rev A A 49 Configuring ATM Services Parameter Path Default Options
160. gh 365566 ATM FRE2 OC 3 SONET SDH ILI pairs 128 through 353207 ATM ARE OC 3 SONET SDH ILI pairs and Model 5780 ATM routers 128 through 96000 ATM ARE DS 3 ILI pairs 128 through 80000 ATM ARE E 3 ILI pairs G832 Framing Mode 128 through 72000 ATM ARE E 3 ILI pairs G751 Framing Mode Specifies the upper traffic limit in cells s that the ATM connection can submit How you set the peak cell rate depends on The optical transmission rate of your ATM device The amount of traffic you expect on a particular VC The rate you desire for each VC After you determine the transmission rate of your ATM device set the peak cell rate within the range specified above 1 3 6 1 4 1 18 3 4 23 1 5 1 8 114056 Rev A A 27 Configuring ATM Services Parameter Xmit Sustainable Cell Rate cells s Path Configuration Manager gt Protocols gt ATM gt Service Records gt PVC Default 2358 Options 300 through 365566 ATM FRE2 OC 3 SONET SDH ILI pairs 0 128 through 353207 ATM ARE OC 3 SONET SDH ILI pairs and Model 5780 ATM routers 0 128 through 96000 ATM ARE DS 3 ILI pairs 0 128 through 80000 ATM ARE E 3 ILI pairs G832 Framing Mode 0 128 through 72000 ATM ARE E 3 ILI pairs G751 Framing Mode Function Specifies the upper limit of the ATM connection conforming average rate The average rate equals the total number of cells transmitted divided by the duration of the connection Using the sustainable cell rate SCR
161. gning the data encapsulation type on the PVC level overrides the encapsulation type selected on the service record level Note If you select NULL the router interprets this as virtual channel based multiplexing which is not supported for bridging For additional information about assigning data encapsulation refer to Chapter 2 Site Manager Data Encapsulation Type page A 31 7 8 114056 Rev A Where to Go Next Customizing PVCs Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing a LAN emulation client Chapter 8 Customizing signaling Chapter 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 114056 Rev A Chapter 8 Customizing LAN Emulation Clients Today s networks contain a vast amount of existing LAN application software LANE provides a way to accommodate this software while taking advantage of ATM technology In other words LANE allows the router to connect to the ATM network while L
162. hapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Chapter 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 114056 Rev A 12 5 Appendix A Site Manager Parameters Once you enable an ATM circuit you can use the Configuration Manager to edit ATM parameters Many ATM parameters are interdependent how you edit some parameters depends on how you set others Accessing ATM Parameters You can access the same ATM parameters using either A window path e A menu path Both of these paths begin in the Configuration Manager window Although you can access the same ATM parameters using either path the information provided by each access method is slightly different Note The Protocols menu in the Configuration Manager does not provide access to ATM line parameters Since line parameters are specific to an interface you can access these parameters through a specific ATM interface Using the Window Path The Edit ATM Connector window acts as a control access point for all ATM parameters This window provides information specific to each individual ATM interface you select For any given interface this window provides several attribute buttons By clicking on any of these buttons you can access and edit various parameters associate
163. he circuit still does not receive a response it clears the connection T308 30 1 through 180 Defines the Release Sent timer value in seconds This timer begins when the circuit sends a RELEASE message to initiate clearing of an SVC Sending this RELEASE message places the network in the Release Request state The Release Sent timer stops when the circuit receives either a RELEASE message that is both the circuit and the network sent RELEASE messages at the same time or a RELEASE COMPLETE message from the network If the timer expires before the circuit receives one of these messages the circuit transmits the RELEASE message a second time If the circuit still does not receive a response the circuit releases the call reference and begins a restart procedure continued 9 4 114056 Rev A Table 9 1 Customizing Signaling Signaling Timer Descriptions continued Name Default Range Description T309 10 1 through 540 Defines the SAAL Data Link Connect timer value in seconds This timer begins when a Signaling AAL malfunction occurs The SAAL Data Link Connect timer stops when the circuit reestablishes SAAL that is when the circuit sends an AAL ESTABLISH REQUEST and receives an AAL ESTABLISH CONFIRM message If the timer expires before the circuit can reestablish SAAL the circuit clears the connection T310 10 1 through 60 Defines the Call Proceeding Recei
164. he endstation identifier Enabling or Disabling the Hardware MAC Address Feature If enabled the Hardware MAC Address feature uses the MAC address of the ATM interface when automatically generating the ATM address user part Disabling this feature uses the MAC Address Override value see below when automatically generating the ATM address user part Note If you disable the Hardware MAC Address feature you must enter a MAC Address Override value Site Manager Use Hardware MAC Address page A 16 Entering a MAC Address Override Value The MAC Address Override value redefines the hardware MAC address for the interface It also defines the endstation identifier for the interface when automatically generating the user part suffix of an SVC ATM address Using the MAC Address Override parameter is very helpful when you want to hot swap ATM link modules For example when hot swapping ATM link modules you can enter the MAC address of the original ATM link module as the MAC Address Override value for the new ATM link module This allows you to keep the information you have already configured on the existing ATM link module while maintaining the integrity of the existing client information on the network Site Manager MAC Address Override page A 17 6 2 114056 Rev A Customizing ATM Interfaces and Service Records Enabling or Disabling User Part Autogeneration After deciding what end
165. ical line from the ATM receptacle Site Manager Enable page A 5 Enabling and Disabling Data Path Notify When enabled the default setting the Data Path Notify function disables the data path interface when the physical interface becomes nonoperational When you disable the Data Path Notify function the data path interface remains operational even when the physical interface is not working Site Manager Data Path Notify page A 6 114056 Rev A 5 1 Configuring ATM Services Specifying the Data Path Notify Timeout Value When you enable the Data Path Notify function you must also specify how long you want the ATM router to wait before implementing this function By default when the state of the physical interface changes from operational to nonoperational the timer waits 3 seconds before implementing the Data Path Notify function However you can adjust this value from 0 through 3600 seconds Site Manager Data Path Notify Timeout page A 6 Enabling or Disabling SVC Inactivity Timeout By enabling the SVC Inactivity Timeout function the default the router automatically disables any SVCs that have not received or transmitted any cells for the period of time you specify see the section below If you disable the SVC inactivity timeout function all SVCs on the line remain open until you close them by another method Site Manager SVC Inactivity Timeout Enable page A 6 Speci
166. ically associate to a common identifier This identifier is called the virtual path identifier VPI and is part of the cell header A virtual channel is a logical connection between two communicating ATM entities Each virtual channel may carry a different protocol or traffic type The virtual channel transports cells that have a common identifier The identifier is called the virtual channel identifier VCI and is part of the cell header Note ATM does not allow duplicate VPI VCI pairs on the same physical interface that is on the same link module However duplicate VPI VCI pairs can exist on different physical interfaces that is on different link modules Setting a VPI Number The VPI number does not have a default setting You must enter a valid VPI number for each PVC you create This number identifies the virtual path of the PVC The VPI is part of the cell header The header can contain a maximum of 8 VPI bits for a UNI connection This bit range allows for path identifiers from 0 through 255 Site Manager VPI Number page A 25 114056 Rev A 7 1 Configuring ATM Services Setting a VCI Number The VCI number does not have a default setting You must enter a valid VCI number for each PVC you create This number identifies the virtual channel of the PVC The VCI is part of the cell header The header can contain a maximum of 16 VCI bits This bit range allows for channel identifiers from 0 through 655
167. ice video and data across a network An ATM cell is a short fixed length packet of 53 bytes It consists of a 5 byte header containing address information and a fixed 48 byte information field Figure 2 1 shows a diagram of an ATM cell 5 byte 48 byte header information field ATMO0001A Figure 2 1 ATM Cell Using a fixed length cell size allows you to predict network delays making ATM suitable for carrying real time information for example voice and video as well as data 114056 Rev A 2 1 Configuring ATM Services ATM allows the network to operate at a much higher rate than typical packet switching systems for example X 25 because it provides no error protection or flow control Instead ATM relies on the source and destination devices to perform error recovery functions such as retransmission of lost packets Cell Headers After dividing the data into 48 byte segments for transmission the end device that is the ATM DSU CSU or native ATM device attaches the required header information Figure 2 2 5 byte 48 byte header information field Generic flow control GFC Virtual path identifier VPI 1 Virtual path identifier VPI Virtual channel identifier VCI 2 Virtual channel identifier FCI 3 Bytes Cell loss Virtual channel identifier VCI l Payload type PT l priority 4 Header error control HEC 5 ATM0002A Figure 2 2 ATM Cell Header The fields in each ATM cell heade
168. ices Bay Networks provides various ATM hardware devices each of which provides a different form of access within the ATM network The ATM sample network in this appendix uses the following ATM hardware devices e LattisCell switches e EtherCell switch e Centillion 100 switch e Backbone Node containing an ATM ILI pair In addition to the Bay Networks eguipment the example reguires UNIX workstations to operate ATM network control software Function of the LattisCell Switch Working in conjunction with network control software the LattisCell switch acts as the backbone of the ATM network refer to Figure 2 10 Multiple LattisCells can interconnect using network to network interface NNI links These interconnecting LattisCells form larger ATM networks called ATM domains In addition to linking together with other switches the LattisCell can also connect to user to network interface UNI clients UNI clients for example routers hubs servers and workstations equipped with ATM interfaces reside on the edge of an ATM network Some of these UNI clients that is the routers hubs and servers can connect to other local or wide area networks For additional information regarding LattisCell features and how to install and use the LattisCell refer to Using the Model 101xx LattisCell ATM Switch Function of the EtherCell Switch The EtherCell Ethernet to ATM switch connects existing Ethernet networks or endstations to ATM network
169. id PVCs when creating nonmeshed network configurations that use both bridging and routing over a single ATM interface These PVCs work best for spanning tree bridging Bridge protocol sees two interfaces ATM Direction of data to the network network interface 4 Routing protocol Routing protocol sees one interface to the network I Interface ATM0012A Figure 2 8 Hybrid PVCs Note When you define a PVC as a hybrid bridged VC Site Manager provides additional Bridge Spanning Tree and Native Mode LAN NML protocol options These protocols run on the PVC along with the protocols defined in the ATM service record Using Hybrid PVCs for Transparent Bridging In Figure 2 9 traffic bridges between Site A and Site B The bridge Router 1 is running on the ATM network interface and its PVCs are not defined as hybrid bridged VCs 2 16 114056 Rev A Understanding ATM Concepts Site A Site B I Bridge port sees one Router 2 path to Sites A and B EC JL eI Router 1 ET L Router 3 oH cr Ii i E lt 3 gt Figure 2 9 Example of a Bridged Network In this example the bridge receives data from Site A If the bridge does not recognize the destination address it tries to
170. ifying line details ATM ARE 5 5 ATM FRE2 5 1 Model 5780 5 5 MTU defining 6 7 parameter description A 24 multicast packet support purpose of 2 21 Multicast Server MCS role of 2 27 multiprotocol encapsulation support 2 9 N Next Hop Interface Addr parameter A 67 No Response Timer modifying 12 3 parameter description A 63 NULL defined 2 10 See also data encapsulation Num Messages Sec for Call Pacing defining 9 9 parameter description A 51 Num Restarts ReXmitted parameter description A 51 setting 9 9 Num Stat Enquiries ReXmitted parameter description A 51 setting 9 9 O Operational State LAN emulation 4 6 Optivity LAN role of 2 27 Owner parameter description A 32 specifying 8 2 Index 8 114056 Rev A P pacing calls 9 9 parameter defaults B 1 to B 7 parties defining 9 3 Path Switching Delay parameter description A 38 setting 8 7 PCR See Xmit Peak Cell Rate PDU values defining 12 4 Peak Cell Rate described 7 3 11 2 See also Xmit Peak Cell Rate Poll Timer modifying 12 2 parameter description A 62 Protocol Standard assigning 9 2 parameter description A 41 protocols editing 1 7 editing for hybrid access nonbridging 1 7 enabling for Classical IP 1 7 hybrid access nonbridging 1 7 LAN emulation 1 7 PVCs 1 8 menus using 2 20 service record 1 7 supported 1 6 PVCs access methods for 2 13 to 2 16 adding 1 8 and service records 2 8 custom
171. ignaling on an Interface eee eee 6 1 Autogenerating ATM Addresses A 6 2 Enabling or Disabling the Hardware MAC Address Feature ssssss 6 2 Entering a MAC Address Override Value sse 6 2 Enabling or Disabling User Part Autogeneration eee 6 3 Assigning ATM Addresses AA 6 3 Entering an ATM Address Network Prefix sss 6 4 Entering an ATM Address User Part ssssseeeem eme 6 4 Enabling or Disabling a Service Record 22 222 eeeee eee eee ee en nenene nn 6 4 Defining a Service Record A 6 5 Assigning the Data Encapsulation Type eee 6 5 Specifying a Virtual Connection Type sssssssssssssseseeeeneneen nennen 6 6 Entering an Emulated LAN Name eee eee eee nennen nnn 6 6 Defining an Emulated LAN Type eee eee eee eee Renee eee eee n nen 6 6 Defining the Mt Elei e e De bat de nar E te Gaile 6 7 Where to GO NeXt 3 e uza tei deti titre di eee cepe at deat iiit etie tien 6 8 Chapter 7 Customizing PVCs Setting a VPIV GI Pals uitae ete tpe et uide ene aie se v eta d e la da e VK 7 1 Setting a VPI Number seesssssssesesesssssee eie eee n ee ns sin KKK sin aaka EE 7 1 Setting a VCI Number A 7 2 Designating a VC as Hybrid Bridged ssssssssssssseeeeeeenen nnne 7 2 Assigning the Administrative State ssssssssssssseeeeeeeeneeen eene 7 3 114056 Rev A Modifying ATM Traf
172. imer page A 63 Setting the SSCOP Maximum Poll Data Value The SSCOP Maximum Poll Data value sets the maximum value of the poll data state variable before transmitting a POLL PDU The poll data state variable increments upon transmission of a sequenced data SD PDU and resets to zero upon transmission of a POLL PDU By default the Maximum Poll Data value sets the poll data state to 25 However you can set this value from 1 through 120 Site Manager Max PD Before Poll page A 64 12 4 114056 Rev A Setting the SSCOP Maximum STAT PDU Value The SSCOP Maximum STAT PDU value sets the maximum number of list elements allowed in a STAT PDU Customizing SAAL The sending device uses this value for segmentation purposes When the number of list elements exceeds the Max STAT value the STAT message segments As a general rule the default value 67 causes the STAT PDU to fill six ATM cells using AAL 5 You can set this value to odd integers from 3 through 119 Site Manager Max STAT PDU Elements page A 64 Where to Go Next Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record C
173. ing 11 1 to 11 7 redefining 11 2 customizing 10 1 to 10 3 parameters Enable A 53 ILMI Get Next Retry Count A 55 ILMI Get Next Timer A 55 ILMI Get Retry Count A 54 ILMI Get Timer A 54 ILMI Set Retry Count A 56 Index ILMI Set Timer A 55 ILMI VCI A 54 ILMI VPI A 53 support 10 1 window sequence A 52 ILMI Get Next Retry Count parameter description A 55 setting 10 2 ILMI Get Next Timer parameter description A 55 setting 10 2 ILMI Get Retry Count parameter description A 54 setting 10 2 ILMI Get Timer parameter description A 54 setting 10 2 ILMI Set Retry Count parameter description A 56 setting 10 3 ILMI Set Timer parameter description A 55 setting 10 3 ILMI VCI changing 11 2 parameter description A 54 ILMI VPI changing 11 2 parameter description A 53 InfoFACTS service xxix Initial Registration State LAN emulation 4 6 interface customizing 6 1 to 6 4 parameters Administrative State A 14 Enable ATM Signaling A 15 MAC Address Override A 17 Use Hardware MAC Address A 16 window sequence A 14 114056 Rev A Index 5 Configuring ATM Services Interface attributes selecting A 14 window sequence A 14 Interface MTU defining 5 5 parameter description A 9 See also MTU Interim Local Management Interface See ILMI Inverse ARP support 2 20 IP adjacent host Adjacent Host X 121 Address parameter A 68 Enable parameter A 66 Host Encapsulation parameter A 68 IP A
174. ing format required for ATM in Europe Site Manager Framing Mode page A 7 114056 Rev A 5 3 Configuring ATM Services Enabling or Disabling Cell Payload Scrambling Some ATM network equipment can exhibit sensitivity to certain bit patterns for example 101010 or 000000 This sensitivity can cause problems in the ATM network Setting the Scrambling feature to Enable the default setting randomizes the bit pattern in the cell payload sufficiently to guarantee cell synchronization Though some equipment may have the ability to operate with scrambling disabled we recommend that you scramble the cell payload Note ATM devices with different scrambling settings cannot communicate For example if you configure a router to enable scrambling and configure a hub to disable scrambling the router and hub cannot communicate Site Manager Scrambling page A 7 Enabling or Disabling Loopback By default Loopback is disabled on an ATM line Enabling the Loopback feature initiates loopback diagnostic mode In loopback mode the router retransmits received data back to the sender over the same ATM line We recommend that you only enable Loopback when trying to diagnose a problem with the ATM line Site Manager Loopback page A 8 Defining ATM Cell Insertion An ATM line is never idle In the absence of user cells the ATM framer device must fill the idle bandwidth The Cell Insertion
175. ing this guide you must complete the following procedures For a new router e Install the router refer to the installation manual that came with your router e Connect the router to the network and create a pilot configuration file refer to Quick Starting Routers and BNX Platforms Connecting BayStack AN and ANH Systems to a Network or Connecting ASN Routers and BNX Platforms to a Network Make sure that you are running the latest version of Bay Networks Site Manager and router software For instructions refer to Upgrading Routers from Version 7 10 xx to Version 11 0 Conventions angle brackets lt gt Indicate that you choose the text to enter based on the description inside the brackets Do not type the brackets when entering the command Example if command syntax is ping ip address gt you enter ping 192 32 10 12 bold text Indicates text that you need to enter command names and buttons in menu paths Example Enter wfsm amp Example Use the dinfo command Example ATM DXI gt Interfaces gt PVCs identifies the PVCs button in the window that appears when you select the Interfaces option from the ATM DXI menu brackets Indicate optional elements You can choose none one or all of the options ellipsis points Horizontal and vertical ellipsis points indicate omitted information italic text Indicates variable values in command syntax descriptions new terms file and directory names
176. ining an emulated LAN Join State An LE client enters the join state when it attempts to join an emulated LAN Joining an emulated LAN requires that the LE client e Set up a control VCC to communicate with the LES e Send a join request containing the client MAC address to the LES e Accept a control distributed VCC to receive control data from the LES e Receive a valid join response from the LES containing a LAN emulation client ID LECID Note No more than one ATM LE client per Bay Networks router ILI pair can join an emulated LAN at any point in time However you can always move a LAN emulation client to the desired emulated LAN using network management software for example the Bay Networks Network Management Application software 114056 Rev A 4 5 Configuring ATM Services Initial Registration State An LE client enters the initial registration state when it attempts to register multiple MAC addresses with the LES Note The router LE client provides the MAC address only for its own ATM interface Because it does not register multiple MAC addresses the router never enters this state The router LE client acts as a proxy for bridge MAC addresses not learned on this circuit BUS Connect State An LE client enters the BUS connect state when it attempts to set up a VCC to the BUS Operational State An LE client enters the operational state after successfully completing the requirements to join an emulated
177. ion Manager Protocols ATM Service Records LEC None Any valid LAN emulation configuration server LECS ATM address Defines the LECS ATM address Entering an address for this parameter is optional If you do not enter an address the LE client uses the well known LECS ATM address to open a configuration VCC to the configuration service Leave blank or enter the ATM address of the LECS 1 3 6 1 4 1 18 3 5 9 5 20 1 1 30 114056 Rev A A 39 Configuring ATM Services ATM Signaling Parameter Descriptions ATM Signaling attributes define the connection and timer limits the router uses to set up maintain and clear a switched connection The ATM Signaling Parameters window also provides access to the signaling VC parameters The signaling VC provides a dedicated VPI 0 and VCI 5 for ATM signaling functions For control VC parameter descriptions refer to Signaling and ILMI Control VC Parameter Descriptions later in this chapter Figure A 5 shows the window sequence for the ATM signaling category Configuration Manager window T ATM Signaling Parameters window L o ATM Control VC for Signaling window ATM0044A Figure A 5 ATM Signaling Parameters Window Seguence A 40 114056 Rev A Site Manager Parameters Parameter Enable Path Configuration Manager gt Protocols gt ATM gt ATM Signaling This parameter also appears in the Initial ATM Signaling Config window Default
178. it of data that the service record can transmit By default the service record allows an MTU size of 4608 octets This value can handle most packet sizes The MTU size is typically determined by the driver However you can override the driver default to accommodate connection to devices that require different MTU sizes You can set this value from 1 though 9188 octets Site Manager MTU page A 24 Note For full compatibility with RFC 1577 you may have to specify an MTU size of 9188 bytes 114056 Rev A 6 7 Configuring ATM Services Where to Go Next Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Chapter 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 6 8 114056 Rev A Chapter 7 Customizing PVCs Setting a VPI VCI Pair A virtual path is a set of virtual channels between a common source and destination The virtual channels within a virtual path log
179. izing 7 1 to 7 8 encapsulation methods 2 9 to 2 13 hybrid access 2 15 to 2 17 multiple per service record 2 13 one per service record 2 14 Index parameters Administrative State A 27 Data Encapsulation Type A 31 Hybrid Bridged VC A 26 Maximum AAL CPCS Receive SDU Size A 31 Maximum AAL CPCS Transmit SDU Size A 30 VCI Number A 26 VPI Number A 25 Xmit Burst Size A 30 Xmit Peak Cell Rate A 27 Xmit Sustainable Cell Rate A 28 R Registration Refresh Interval parameter A 70 Release Sent timer See T308 response time LE ARP See Expected LE ARP Response Time 8 7 Restart Request Sent on Channel timer See T316c Restart Request Sent on Interface timer See T316 retransmissions defining 9 9 S SAAL attributes selecting A 61 window sequence A 61 customizing 12 1 to 12 5 Data Link Connect timer See T309 Data Link Disconnect timer See TDisc enabling disabling 12 2 parameters Connection Control Timer A 63 Enable A 61 Keep Alive Timer A 62 Link Connection Arbitration A 62 Max Connection Control A 64 Max PD Before Poll A 64 Max STAT PDU Elements A 64 114056 Rev A Index 9 Configuring ATM Services No Response Timer A 63 Poll Timer A 62 support 12 1 window sequence A 61 SCR See Xmit Sustainable Cell Rate Scrambling enabling disabling 5 4 parameter description A 7 SDU Size setting receive control VCs 11 7 PVCs 7 8 transmit control VCs 11 7 PVCs 7 8
180. jacent host A 66 ATM ARE line description A 9 using 5 5 ATM FRE2 line description A 5 using 5 1 ILMI description A 53 using 10 1 LANE description A 32 using 8 1 Model 5780 line description A 9 using 5 5 SAAL description A 61 using 12 2 signaling description A 41 using 9 2 Enable Disable service record parameter description A 20 using 6 4 encapsulation multiprotocol 2 9 error checking 2 21 Expected LE_ARP Response Time defining 8 7 parameter description A 38 F Flush Protocol enabling disabling 8 8 parameter description A 39 Flush Timeout parameter description A 38 setting 8 8 Forward Delay Time parameter description A 37 setting 8 6 Framing Mode assigning ATM ARE 5 7 ATM FRE2 5 3 parameter description ATM ARE A 11 ATM FRE2 A 7 Index 4 114056 Rev A G Get Next Retry Count See ILMI Get Next Retry Count Get Next Timer See ILMI Get Next Timer Get Retry Count See ILMI Get Retry Count Get Timer See ILMI Get Timer getting help from a Bay Networks Technical Response Center xxix from the Support Source CD xxviii through CompusServe xxviii through Customer Service FTP xxvii through InfoFACTS service xxix through World Wide Web xxvii H Host Encapsulation parameter A 68 hybrid access PVCs 2 15 to 2 17 Hybrid Bridged VC designating 7 2 parameter description A 26 ILMI attributes selecting A 52 window sequence A 52 control VCs customiz
181. l 5780 ATM routers ignore the maximum burst size Parameter Path Default Options Function Instructions MIB Object ID Maximum AAL CPCS Transmit SDU Size Configuration Manager gt Protocols gt ATM gt ATM Signaling gt Sig VC or Configuration Manager gt Protocols gt ATM gt ILMI Signaling gt ILMI VC 4608 1 through 65535 Specifies the maximum AAL CPCS SDU size in bytes that this VC supports in the transmit direction Enter an octet value that represents the maximum packet size you intend this VC to transmit We suggest that you accept the default value of 4608 bytes Most packets fall well within this limit 1 3 6 1 4 1 18 3 4 23 1 5 1 17 114056 Rev A A 59 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Maximum AAL CPCS Receive SDU Size Configuration Manager gt Protocols gt ATM gt ATM Signaling gt Sig VC or Configuration Manager gt Protocols gt ATM gt ILMI Signaling gt ILMI VC 4608 1 through 65535 Specifies the maximum AAL CPCS SDU size in bytes that this VC supports in the receive direction Enter an octet value that represents the maximum packet size you intend this VC to receive We suggest that you accept the default value of 4608 bytes Most packets fall well within this limit 1 3 6 1 4 1 18 3 4 23 1 5 1 18 A 60 114056 Rev A Site Manager Parameters ATM Signaling AAL Parameter Desc
182. lect and configure to run on that service record Note When you configure multiple PVCs per service record the PVCs all use the data encapsulation type that you set for the ATM service record that is the value of the Data Encapsulation Type parameter set in the ATM Service Records List window Refer to Data Encapsulation earlier in this chapter for more information One PVC Multiple PVCs per service record works best in either fully meshed environments or in nonmeshed environments where systems not directly connected to each other have no need to communicate You can configure multiple PVCs per service record as long as you do not need to separate protocols by PVC that is all PVCs accept the same protocols There are however ways to configure upper layer protocols such as IP or Internet Packet Exchange IPX to allow systems in nonmeshed networks to fully communicate See the documentation for these upper layer protocols for more information One PVC per service record works the same way as multiple PVCs per service record except that you assign only one PVC per service record When you define only one PVC per service record upper layer protocols treat the ATM network as a series of direct point to point connections viewing each PVC as an individual network interface You can therefore configure each PVC with different protocols and parameter settings This allows you to connect to different network sites usin
183. lity of an ATM endpoint device Establishes a connection with that device 2 3 Maintains that connection for the duration of data transfer 4 Clears the connection when the transfer is complete Data Q SAAL Encapsulation ATM Adaptation Layer AAL 5 ATM Layer Physical Layer ATM0039A Figure 9 1 SVC PVC Signaling Protocol Stack Bay Networks ATM routers support ATM signaling functions as defined in the ATM Forum ATM User Network Interface specification Versions 3 0 and 3 1 114056 Rev A 9 1 Configuring ATM Services Enabling or Disabling Signaling By default signaling is enabled on an interface when you create the circuit However you can enable or disable signaling on an interface at any time Site Manager Enable page A 41 Note Disabling ATM signaling on an interface automatically sets the data encapsulation type to LLC SNAP and the virtual connection type to PVC for any new service records Assigning a Protocol Standard The protocol standard specifies how the interface defines Service Specific Connection Oriented Protocol SSCOP frames ATM Forum Version 3 0 and Version 3 1 methods of defining SSCOP frames are incompatible You must assign the same protocol standard for both the router interface and the switch Accept the default UNI_V30 if the switch uses ATM Forum UNI Version 3 0 to define SSCOP frames Select UNI V31 if the switch uses ATM Forum UNI Version 3 1 to define SSCOP
184. low over the PVC Site Manager Administrative State page A 27 Modifying ATM Traffic Parameters The ATM User Network Interface Specification defines several traffic parameters These parameters help to prioritize and control the traffic on each VC How you modify your ATM traffic parameters depends on e The characteristics for example maximum cell rate average cell rate burst size of the individual connections that you want to set up e The bit rate method variable or available that the ATM ILI pair uses You can change your ATM traffic parameters several times before deciding on a particular set This section explains the different traffic parameters and provides some basic guidelines for customizing traffic parameters on an ATM PVC or ATM control SVC that is the signaling VC or ILMI VC Note You do not need to manually configure traffic parameters for SVCs as you must for PVCs and control VCs because SVCs dynamically negotiate these parameters before transferring data Setting the PCR The PCR specifies the upper traffic limit in cells second that the ATM connection can submit How you set the PCR depends on e The optical transmission rate of your ATM device e The amount of traffic you expect on a particular VC 114056 Rev A 7 3 Configuring ATM Services The rate you desire for each VC When setting the PCR keep the following in mind Each VC can have its own PCR The PCR
185. ly to every POLL PDU This can cause problems in detecting a broken connection To alleviate this problem the No Response timer runs parallel to the poll timer If both the No Response timer and the poll timer expire the SSCOP clears the connection The No Response Timer value must equal at least the sum of the Keep Alive Timer plus the length of one round trip delay Connection 10 1 through 120 Defines the SSCOP Connection Control CC Timer value in Control tenths of a second This value sets the allowable time Timer between the transmission of BGN END resynchronization RS and error recovery ER PDUs as long as the sender has not received an acknowledgment to any of these PDUs The CC Timer must equal at least the length of one round trip delay Site Manager Poll Timer page A 62 Site Manager Keep Alive Timer page A 62 Site Manager No Response Timer page A 63 Site Manager Connection Control Timer page A 63 114056 Rev A 12 3 Configuring ATM Services Defining PDU Values SAAL allows you to define several SSCOP values that control PDUs Setting the SSCOP Maximum Connection Control Value The SSCOP Maximum CC value sets the maximum number of times the sender can transmit a BGN END RS or ER PDU By default the sender can transmit up to four 4 of these messages However you can set this value from 1 through 20 messages Site Manager Connection Control T
186. mitted parameter see Defining Retransmissions later in this chapter If the circuit still does not receive a response the circuit enters the Null state until the appropriate maintenance action is taken T316c 120 1 through 720 Defines the Restart Reguest Sent on Channel timer value in seconds This timer begins when the circuit sends a RESTART message to the network The circuit uses the RESTART message to return this individual VC on the interface to the idle condition The Restart Request Sent on Channel timer stops when the circuit receives a RESTART ACKNOWLEDGE message from the network If the timer expires before the circuit receives a RESTART ACKNOWLEDGE message the circuit can transmit as many RESTART messages as specified with the Num Restarts Permitted parameter see Defining Retransmissions later in this chapter If the circuit still does not receive a response the circuit enters the Null state until the appropriate maintenance action is taken continued 9 6 114056 Rev A Table 9 1 Customizing Signaling Signaling Timer Descriptions continued Name Default Range Description T322 4 1 through 24 Defines the Status Enquiry Sent timer value in seconds This timer begins when the circuit sends a STATUS ENQUIRY message to the network This message checks the validity of a call by requesting the call state that is the state of an active call
187. n your network The user part suffix consists of a 6 byte endstation identifier and a 1 byte selector field Enter the user part suffix of the ATMARP server on your network A complete ATM address consists of a network prefix and a user part Use the ARP Server ATM Address Network Prefix parameter to supply the network part of the ATM address 1 3 6 1 4 1 18 3 5 3 2 1 4 1 113 Registration Refresh Interval Configuration Manager gt Protocols gt IP gt Interfaces 900 seconds for a client 1200 seconds for a server Any interval in seconds For a client this parameter specifies the interval between registration refreshes For a server this parameter specifies the duration for which the registration is valid Determine if ATMARP is running as a client or server on this interface and enter an appropriate value 1 3 6 1 4 1 18 3 5 3 2 1 4 1 115 A 70 114056 Rev A Appendix B Site Manager Default Settings for ATM This appendix lists the Site Manager default parameter settings for ATM You can use the Configuration Manager to edit any default settings listed here Table B 1 Initial ATM Signaling Config Window Parameter Default Enable ATM Signaling Enable Max Number of SVC Applications 20 Max Point to Point Connections 1000 Max Point to Multipoint Connections 40 Max Parties in Multipoint Connections 1 Table B 2 ATM Service Records List Window Parameter Default Enable
188. n help you more efficiently use your network resources For ATM ARE ILI pairs and Model 5780 ATM routers the SCR maps directly to the minimum cell rate MCR The MCR defines the minimum amount of guaranteed bandwidth allowed for PVCs and Control VCs on the ATM line When setting the SCR for ATM FRE2 ILI pairs keep the following in mind The SCR is essentially a future average By setting the SCR you are specifying the cell rate over time to which you want the VC to conform To be useful the SCR must not exceed the PCR If you know the user average rate set the SCR about 10 percent higher than this value ATM FRE2 ILI pairs require a minimum SCR value of 300 cells s PVCs may fail to operate with SCR values less than 300 cells s continued 114056 Rev A A 57 Configuring ATM Services Parameter Instructions MIB Object ID Xmit Sustainable Cell Rate cells s continued When setting the SCR for ATM ARE ILI pairs and Model 5780 ATM routers keep the following in mind The SCR maps directly to the MCR The MCR provides guaranteed bandwidth for PVCs and Control VCs while allowing sufficient bandwidth for SVCs to operate To be useful the SCR must not exceed the PCR If you know the user average rate set the SCR about 10 percent higher than this value ATM ARE ILI pairs and Model 5780 ATM routers require a minimum SCR value of 128 cells s VCs may fail to operate with SCR values less than 128 cells s ATM
189. n nnne xxvii World Wide Web irte ier e t d dae e Doe hate xxvii Customer Service EIB xxvii Support Source CD n ect er en bre te e dte te ier d MEA ad tede xxviii EES xxviii IMoFAGTS E noo oo oa xxix Howto Get Help reae i e utr se ut m redeo ar ana d RUE eae xxix Chapter 1 Starting ATM Betore You Begin EE 1 1 Adding ATM to the Router ssssssssseeeene eee ennemis 1 2 Creating an ATM eg ees a tert ete P et ttc vy er eaa 1 2 Defining a Service Record sss eene nennen nes 1 3 Adding a Service Record for PVCS eee eee nenene nn 1 8 Adding a Service Record for Classical IP seeseeeseeseesrresrrsssrrssrrrerrnsrrensrne 1 4 Adding a Service Record for LANE eee eee eee eee nenene nn 1 5 Enabling Protocols on an ATM Service Record sse 1 6 Supported Protocols orti ea deti Cete ee m te onera Gereke EE 1 6 114056 Rev A vii Tnngs to Remember iu tee Eae Cete p tens leavers tee ve Certe oen 1 7 Selecting ProtOCelS eege gege Eesen 1 8 Adding AE 1 8 Where t6 GO NGXE 3 tee Seet ih Geen nian oie dans ehre eeh 1 9 Chapter 2 Understanding ATM Concepts ATM Gener l Informoaltlon u ocio s ccbdedeustcachastesceebheasied FEE dE ERA Yee LE LE Ran eda 2 1 ATM GelS emm 2 1 Cell Headers unten tet d ede teca eeh epa adi 2 2 The Cell Information Field ssesssssssesee nennen 2 3 RE tee RE 2 3 Permanent and Switched Virtual Connectio
190. nager Protocols ATM ILMI Signaling 3 1 through 100 Specifies the number of retransmissions of the ILMI GET REQUEST message before the link is considered down Accept the default 3 or enter a value from 1 through 100 1 3 6 1 4 1 18 3 4 23 1 9 1 14 A 54 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters ILMI Get Next Timer Configuration Manager gt Protocols gt ATM gt ILMI Signaling 3 1 through 120 Defines the ILMI Get Next Request timer value in seconds The Get Next Request timer sets the amount of time allowed to receive a GET NEXT RESPONSE message after sending a GET NEXT REOUEST message Accept the default 3 or enter a value from 1 through 120 1 3 6 1 4 1 18 3 4 23 1 9 1 15 ILMI Get Next Retry Count Configuration Manager Protocols ATM ILMI Signaling 3 1 through 100 Specifies the number of retransmissions of the ILMI GET NEXT REQUEST message before the link is considered down Accept the default 3 or enter a value from 1 through 100 1 3 6 1 4 1 18 3 4 23 1 9 1 16 ILMI Set Timer Configuration Manager Protocols ATM ILMI Signaling 3 1 through 120 Defines the ILMI Set Request timer value in seconds The Set Request timer sets
191. nager gt Protocols gt ATM gt Service Records gt PVC LLC SNAP LLC SNAP NLPID NULL Specifies the type of data encapsulation used over AAL 5 SSCS layers Use this parameter to select LLC SNAP NLPID or NULL data encapsulation for All PVCs on a particular service record Hybrid PVCs We recommend selecting LLC SNAP If you select NULL the router interprets this as virtual channel based multiplexing which is not supported for bridging 1 3 6 1 4 1 18 3 4 23 1 5 1 19 114056 Rev A A 31 Configuring ATM Services LAN Emulation Parameter Descriptions Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Enable Configuration Manager gt Protocols gt ATM gt Service Records gt LEC Enable Enable Disable Enables or disables LAN emulation on this service record Accept the default Enable if you want LAN emulation to remain enabled on this service record Select Disable if you do not want LAN emulation enabled on this service record 1 3 6 1 4 1 18 3 5 9 5 20 1 1 2 Owner Configuration Manager gt Protocols gt ATM gt Service Records gt LEC None Leave blank or enter up to 128 alphanumeric characters Identifies this LAN emulation client This parameter is optional Either leave this paramete
192. nd Bind Reguest ATM Layer Manager Outbound Bind Confirm 50 11 03 95 11 44 59 320 TRACE SLOT 5 ATM LE Code 38 Line 1405101 Circuit 3 ATM LEC Control SAP binding complete EC Calling SIG Register CPN cct 3 bind id 0 sig id 1 reg id 0 51 11 03 95 11 44 59 320 DEBUG SLOT 5 ATM SIG Code 24 ATM Layer Manager Inbound Register Request ATM Layer Manager Outbound Register Confirm 52 11 03 95 11 44 59 320 TRACE SLOT 5 ATM LE Code 41 LEC Calling SIG Register BLLI cct 3 bind id 0 sig id 1 reg id 1 114056 Rev A ATM Sample Log 53 11 03 95 11 44 59 320 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound Register Request 54 11 03 95 11 44 59 324 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Outbound Register Confirm 55 11 03 95 11 44 59 324 TRACE SLO 5 ATM LE Code 41 EC Transitioning into the ATM LEC INITIAL state for cct 3 Line 1405101 Circuit 3 ATM LEC MCast SAP binding complete EC Calling SIG_Register CPN cct 3 bind_id 2 sig_id 2 reg_id 2 56 11 03 95 11 44 59 324 DEBUG SLOT 5 ATM_SIG Code 24 ATM Layer Manager Inbound Register Request ATM Layer Manager Outbound Register Confirm 57 11 03 95 11 44 59 328 TRACE SLO 5 ATM LE Code 41 Calling SIG Register BLLI cct 3 bind id 2 sig id 2 reg id 3 E Di a 58 11 03 95 11 44 59 328 DEBUG SLO 5 ATM SIG Code 24
193. nd provides the ability to use an address resolution protocol to obtain information and receive that information from a designated ATMARP server For additional information about RFC 1577 and how to configure logical IP subnets on an ATM network refer to Chapter 3 After you add protocols to an LLC SNAP NULL or LANE switched virtual circuit Site Manager adds an SVC button to the ATM Service Records List window Clicking on the SVC button opens the SVC window From this window you can view and delete individual SVCs from the service record dynamic mode only Selecting LANE to run on an SVC service record defines that service record as belonging to an emulated LAN This means that any protocols on that service record operate as if they were running over a traditional Ethernet LAN After you add protocols to a LANE switched virtual circuit Site Manager adds a LEC LAN emulation client button to the ATM Service Records List window Clicking on the LEC button opens the ARE LAN Emulation Parameters window For additional information about customizing LAN emulation clients refer to Chapter 8 114056 Rev A Configuring ATM Services Adding PVCs Selecting Protocols To select protocols to operate on a service record 1 Click on the protocol or protocols you want to enable in the Select Protocols window Click on OK For each protocol you select the Configuration Manager displays a protocol specific window prompting you
194. ndation of the ATM Forum virtual channel identifiers from 0 through 31 are reserved for signaling and added functionality Parameter Hybrid Bridged VC Path Configuration Manager gt Protocols gt ATM gt Service Records gt PVC Default No Options Yes No Function Specifies whether the VC is set to hybrid access mode Instructions Accept the default No if you want the VC to work in group access mode only MIB Object ID Set to Yes if you want the VC to operate as a hybrid VC For more information about the group and hybrid access modes refer to PVC Access Methods in Chapter 2 1 3 6 1 4 1 18 3 4 23 1 5 1 25 A 26 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Administrative State Configuration Manager gt Protocols gt ATM gt Service Records gt PVC Up Up Down Specifies the administrative state of the PVC The Up state indicates that traffic flow is enabled on this PVC The Down state indicates that traffic flow is disabled on this PVC Accept the default Up if you want traffic to flow on this PVC Set the state to Down if you do not want traffic to flow on this PVC 1 3 6 1 4 1 18 3 4 23 1 5 1 5 Xmit Peak Cell Rate cells s Configuration Manager gt Protocols gt ATM gt Service Records gt PVC 2358 300 throu
195. ndle 15592560 TransId 00edec7 121 11 03 95 11 45 16 085 INFO SLO 5 ATM LE Code 4 Line 1405101 Circuit 3 ATM LEC configuration complete 122 11 03 95 11 45 16 085 DEBUG SLOT 5 ATM Code 45 EC Control Packet 123 11 03 95 11 45 16 089 DEBUG SLOT 5 ATM Code 45 Opcode ARP Req Type REQUEST Transaction Id 00000000 Requestor LECID 0050 Flags 0000 Lan Type 802 3 Max Frame Size Unspec Targ ATM Address Dest LAN ff ff ff Src ATM Address Src LAN 00000000000000000000000000 000000000000 00 ff ff ff 39000000000000000000000000 0000a20e9 ca 00 KKK KK KKK KKK KK AA AA AKA ck ck K ck KK KK KKK KKK ck kk Ck Ck AAA kk kk XX kk KKK KKK KKK KKK KK KKK KK KK The LE client sends an LE ARP request for the BUS using a MAC address that contains all Fs KKK KKK KK KKK KKK KK KK KKK KR KKK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KK KKK 124 11 03 95 11 45 16 089 TRACE LEC Transitioning into the ATM L SLOT 5 ATM LE ECT state for cct 3 EC BUSCONN Code 41 114056 Rev A Configuring ATM Services 125 11 03 95 11 45 16 093 DEBUG SLOT 5 ATM_LE Code 45 EC Received one of our LE ARP Responses back for LEC 3 EC Control Packet Opcode ARP Req_Type RESPONSE Status SUCCESS Transaction_Id 00000000 Requestor LECID 0050 Flags 0000 Lan Type 802 3 Max Frame Size Unspec Targ ATM Address 39000000000000000000000000 0800
196. nels in a virtual path logically associate to a common identifier This identifier is called the virtual path identifier VPI and is part of the cell header You can base cell switching on either the VPI alone or on a combination of the VPI and VCI Virtual paths enable you to separate network transport functions into those related to an individual logical connection virtual channel and those related to a group of logical connections virtual path A transmission path is a physical connection that comprises several virtual paths each virtual path containing several virtual channels The transmission path may support multiple virtual paths across a single connection to the network Figure 2 3 shows the relationships between the virtual channel the virtual path and the transmission path Transmission path vc NOE LE ve e P B e D E we VP Virtual path VC Virtual channel ATM0006A Figure 2 3 ATM Transmission Components 2 4 114056 Rev A Understanding ATM Concepts Permanent and Switched Virtual Connections Virtual channels and virtual paths allow you to establish virtual channel links VCLs You can create VCLs as either permanent virtual circuits PVCs or switched virtual circuits SVCs Once you establish a PVC you can transfer information over it at any time Switched virtual circuits only activate through signaling and network switching when there is information ready for transmission Physical Layer
197. nonoperational 1 3 6 1 4 1 18 3 4 23 2 1 1 14 Data Path Notify Timeout Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes 3 seconds 0 through 3600 seconds Specifies the number of seconds to wait before implementing the Data Path Notify function Enabling Data Path Notify sets a timer to this value when the state of the physical interface changes from operational to nonoperational Either accept the default value 3 seconds or specify a new value 1 3 6 1 4 1 18 3 4 23 2 1 1 15 SVC Inactivity Timeout Enable Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Enable Enable Disable If you select Enable the router disables any switched virtual circuit SVC on which the router receives or transmits no cells for the number of seconds you specify using the SVC Inactivity Timeout Secs parameter If you select Disable the router keeps SVCs open unless you close them by another method Select Enable or Disable 1 3 6 1 4 1 18 3 4 23 2 1 1 28 A 6 114056 Rev A Site Manager Parameters Parameter Path Default Options Function Instructions MIB Object ID SVC Inactivity Timeout Secs Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes 1200 seconds 60 through 3600 seconds If the router receives or transmits no cells on an SVC for this number of seconds it closes the SVC providing that you set the
198. ns sse 2 5 Physical Layer EE 2 5 ATM Ayer tied A er ei teri os 2 6 ATM Adaptation Layer AAL5 seeren a a ee a nenne e 2 7 Service Records and Virtual Circuits ccceceececeeeeeeeeeeeeeeeeeeeeeaeeeeeeeeeeaeeeeeeeeessaeeeeeaeees 2 8 Data ee TE IEN 2 9 Encapsulation Methods chute to ett recte fed iei reet tients 2 9 ANE v SLE tM LA o eC xd A bed nes 2 9 LEC SNAP Encapsulation deet intei Ete Eee cee ikea 2 9 NULL Encapsulation eee eee eee eee nennen nennen nnns 2 10 NCPID Encapsulahon EE 2 10 Selecting a Data Encapsulation Method eee eee eee eee nenene 2 10 LLC SNAP Encapsulation eee eee eee eee een teen nns 2 11 NULL Encapsulation VC Based Multiplexing ssssseessss 2 11 Encapsulation Rules for PVCS o cccceccsceeeeeeeeeneeeeeeeeeeeeaeeseneeeeceaeeseeneeetaeeeseaeeesaas 2 12 PVC Access Methods AAA 2 13 nea erp 2 13 One ANE 2 14 Hybrid ACCESS 2 ec Eandem 2 15 Using Hybrid PVCs for Transparent Bridging 2 16 SVC Access Methods ssssssssssssssssesee eee enne en nennen nennen nnne nennen 2 18 ATM Traffic Parameters ccce ee ae Wel dte ui Fera be NEESS 2 18 viii 114056 Rev A Variable Bit Rate Versus Available Bit Rate oo ccc ccceeesseeeessseeeeeeaeeeeeeeaesaa 2 19 Variable Bit Hate 5c ee net cett eost it et detta 2 19 Available Bit Rate iem Citi ete Lebe ed det ER
199. nterface to initiate connections 1 3 6 1 4 1 18 3 4 23 1 8 1 8 Poll Timer Configuration Manager gt Protocols gt ATM gt Signaling AAL 7 1 through 120 Defines the Service Specific Connection Oriented Protocol SSCOP Poll timer value in tenths of a second This value sets the allowable time between Poll Protocol Data Unit PDU transmissions The Poll timer ensures that the receiver continues to return a solicited status STAT PDU to the sender on a regular basis The timely receipt of STAT PDUs restarts the Poll timer and allows for more efficient transmission error recovery Accept the default 7 or enter a value from 1 through 120 1 3 6 1 4 1 18 3 4 23 1 8 1 9 Keep Alive Timer Configuration Manager gt Protocols gt ATM gt Signaling AAL 20 1 through 120 Defines the SSCOP Keep Alive Timer value in tenths of a second This value sets the allowable time between POLL PDU transmissions if there are no pending Sequence Data SD PDUs The keep alive timer is generally greater than the poll timer and greater than the length of one round trip delay Accept the default 20 or enter a value from 1 through 120 1 3 6 1 4 1 18 3 4 23 1 8 1 10 A 62 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters No Response Timer Configuration Manager gt Protocols g
200. o change any of the parameters in the ATM Virtual Channel Link window refer to Appendix A for parameter information 4 If you want to add another PVC with the default configuration repeat Steps 1 through 3 5 Click on Done The Configuration Manager returns you to the ATM Service Records List window Where to Go Next Use the following table to determine where you want to go next For information about Go to General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Customizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing signaling Chapter 9 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 114056 Rev A Chapter 2 Understanding ATM Concepts This chapter looks at concepts underlying ATM and where appropriate the specific ways we implement these concepts on our routers ATM General Information ATM Cells Asynchronous Transfer Mode ATM is a connection oriented cell based technology that relays traffic across a Broadband Integrated Services Digital Network B ISDN It is a cost effective way of transmitting vo
201. on Instructions MIB Object ID Data Path Enable Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes Enable Enable Disable If you disconnect the cable from the ATM module this parameter specifies whether or not the router disables the interface between the driver and the higher level software the data path interface If you select Enable when you disconnect the cable from the ATM the router disables the data path interface after the time you specify with the Data Path Notify Timeout parameter If you select Disable the router does not disable the data path interface when you disconnect the cable from the ATM module Select Enable or Disable If you select Enable be sure to enter an appropriate value for the Data Path Notify Timeout parameter 1 3 6 1 4 1 18 3 4 23 3 2 1 11 Data Path Notify Timeout Configuration Manager gt Circuits gt Edit Circuits gt Edit gt Line Attributes 1 second 0 through 3600 seconds Defines the time the router waits before disabling the data path interface when you disconnect the cable from the ATM module providing that you set the Data Path Enable parameter to Enable Accept the default or enter an appropriate time value 1 3 6 1 4 1 18 3 4 23 3 2 1 12 A 10 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID
202. oncepts ATM Error Checking ATM verifies that the VPI VCI is valid with respect to the PVCs configured for the ATM circuit It also verifies the header format ATM verifies valid SVC connection through signaling messages Simulated Multicast Packet Support Simulated multicasting is generally used in certain address resolution techniques and for applications that require the delivery of identical information to multiple recipients Bay Networks ATM routers simulate multicasting by sending a copy of the multicast or broadcast packet to every available virtual circuit on a particular logical interface Converting Mb s to Cells s Several ATM traffic parameters require you to enter values in cells per second cells s To convert to cells s divide the number of bits s by 424 the number of bits per ATM cell Number of bits second Number of bits ATM cell Number of cells second For example 100 000 000 bits s 424 bits cell 235 849 cells s ATM0021A 114056 Rev A 2 21 Configuring ATM Services Example of an ATM Network An ATM network often contains components both hardware and software that provide various forms of connectivity or necessary management functions This section e Illustrates how Bay Networks ATM hardware and software components logically fit together within a sample ATM network e Provides basic functional descriptions of the ATM hardware and software components used in the sample network
203. ork If the circuit does not receive one of these messages within the allotted time it transmits the SETUP message a second time If the circuit still does not receive a response it clears the connection Accept the default 4 or enter a value from 1 through 24 1 3 6 1 4 1 18 3 4 23 1 7 1 25 A 44 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters T308 Configuration Manager gt Protocols gt ATM gt ATM Signaling 30 1 through 180 Defines the Release Sent timer value in seconds This timer begins when the circuit sends a RELEASE message to initiate clearing of an SVC Sending this RELEASE message places the network in the Release Request state The Release Sent timer stops when the circuit receives either a RELEASE message that is both the circuit and the network sent RELEASE messages at the same time or a RELEASE COMPLETE message from the network If the timer expires before the circuit receives one of these messages the circuit transmits the RELEASE message a second time If the circuit still does not receive a response the circuit releases the call reference and begins a restart procedure Accept the default 30 or enter a value from 1 through 180 1 3 6 1 4 1 18 3 4 23 1 7 1 26 T309 Configuration Manager gt Protocols gt ATM gt ATM Signaling 1
204. path service available SLO 5 ATMINTE SLO 5 ATMINTE SLO 5 ATMINTF RX cmds 0x800000c0 RX TX cmds 0x800012c0 TX log 0x800010c0 log 0x800022c0 SLO 5 ATMINTE SLO 5 ATMINTE SLO 5 ATMINTE SLOT 5 ATMINTF Using default ATMizer buffering thresholds 1405101 alm 1 frm 2 clk 1 ver 0 cct 2 SLO 5 ATMINTE SLO 5 ATMINTE SLO 5 A SLO 5 A SLOT 5 ATMINTF Code 3 Code 20 Code 151 Code 130 Code 131 Code 13 Code 129 Code 4 Code 169 Code 2 Code 1 Code 10 KKK KKK KK KKK KKK KK KK KKK AKA KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK KK The ATM module has successfully completed its initialization process has started and is available for use KKK KKK KK KKK AA KK KKK KKK KR KKK KKK KK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KK KK KKK 16 11 03 95 11 44 57 605 DEBUG SLOT 5 ATM Signalling not loaded Going into wait state Code 47 114056 Rev A ATM Sample Log 17 11 03 95 11 44 58 878 DEBUG SLOT 5 ATM Code 47 Signalling came alive 18 11 03 95 11 44 58 882 DEBUG SLOT 5 ATM Code 47 Changing to signalling wait state 19 11 03 95 11 44 58 882 INFO SLO 5 ATM SIG Code 3 Line 1405101 ATM Signaling initiating 20 11
205. plementing this function By default if the router does not receive or transmit any cells for 1200 seconds the SVC Inactivity Timeout function activates However you can adjust this value from 60 through 3600 seconds Site Manager SVC Inactivity Timeout Secs page A 11 5 6 114056 Rev A Customizing an ATM Line Assigning the Framing Mode You can assign the following transceiver framing modes to an ATM ARE ILI pair or a Model 5780 ATM router e SDH e M23 e SONET e G751 e CBIT e G832 By default the ATM line uses SONET framing However the framing mode you select depends on the interface type your device uses Refer to the following table to match the appropriate framing mode s to the correct interface type Table 5 1 Determining an Appropriate Framing Mode Framing Modes You Can Use Interface Type SDH SONET CBIT M23 G751 G832 OC 3 v v DS 3 v v E3 v v Site Manager Framing Mode page A 11 Defining the Clocking Signal Source You can specify either an internal the default setting or external clocking source for time signals Internal uses the router clock External uses the line clock Site Manager Clocking Signal Source page A 12 114056 Rev A 5 7 Configuring ATM Services Specifying DS3 Line Build Out On modules that use a DS3 interface you can specify how the router conditions signals to migrate attenuation Speci
206. r Default DS3 Line Build Out Short DS3 Scrambling On Table B 11 ATM Signaling Parameters Window Parameter Default Enable Enable Protocol Standard UNI V30 Max Number of SVC Applications 20 Max Point to Point Connections 1000 Max Point to Multipoint Connections 40 Max Parties in Multipoint Connections 1 Min Memory Threshold 20 VPI 0 VCI 5 T303 4 T308 30 T309 10 T310 10 T313 4 T316 120 T316c 120 T322 4 TDisc 4 T398 4 T399 14 Num Restarts Permitted 3 Num Stat Enquiries Permitted 3 Num Messages Sec for Call Pacing 2 114056 Rev A B 5 Configuring ATM Services Table B 12 ATM Control VC for Signaling Window Parameter Default Xmit Peak Cell Rate cells s 4716 Xmit Sustainable Cell Rate cells s 4716 Xmit Burst Size cells 40 Maximum AAL CPCS Transmit SDU Size 4608 Maximum AAL CPCS Receive SDU Size 4608 Table B 13 ATM Signaling AAL Records List Window Parameter Default Enable Enable Link Connection Arbitration Active Poll Timer 7 Keep Alive Timer 20 No Response Timer 70 Connection Control Timer 10 Max Connection Control 4 Max PD Before Poll 25 Max Stat PDU Elements 67 114056 Rev A Site Manager Default Settings for ATM Table B 14 ATM ILMI Signaling Parameters Window Parameter Default Ena
207. r blank or enter a text string up to 128 alphanumeric characters to identify this LAN emulation client 1 3 6 1 4 1 18 3 5 9 5 20 1 1 4 Configuration Mode Configuration Manager gt Protocols gt ATM gt Service Records gt LEC Automatic Automatic Manual Indicates whether this LAN emulation client configures automatically that is uses information from the LECS or manually that is uses information from the LAN Emulation Parameters window Accept the default Automatic if you want this client to configure automatically Select Manual if you do not want the router to autoconfigure 1 3 6 1 4 1 18 3 5 9 5 20 1 1 5 A 32 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Emulated LAN Type Configuration Manager gt Protocols gt ATM gt Service Records gt LEC Unspecified Unspecified IEEE8023 Indicates the data frame format this client uses when it joins an emulated LAN Clients that use Automatic configuration mode use this parameter in their LE_CONFIGURE_REQUEST frames to specify the LAN type Clients that use Manual configuration mode use this parameter in their LE JOIN REOUEST frames to specify the LAN type Selecting manual configuration mode refer to the parameter description above requires that you set the Emulated LAN Type to IEEE8023
208. r provide all the information necessary for networking These fields include the following Generic Flow Control GFC The first 4 bits of the cell header contain the GFC The GFC controls traffic flow onto the ATM network by controlling the user network interface UNI 2 2 114056 Rev A Understanding ATM Concepts Virtual Path Identifier VPI The next 8 bits of the cell header that is the last half of byte 1 and the first half of byte 2 contain the VPI The VPI specifies a virtual path on the physical ATM link Refer to the next section Data Transmission for additional information on virtual paths Virtual Channel Identifier VCI The next 16 bits of the cell header that is the last half of byte 2 all of byte 3 and the first half of byte 4 contain the VCI The VCI specifies a virtual channel within the virtual path on the physical ATM link Refer to the next section Data Transmission for additional information on virtual channels Payload Type PT The next 3 bits that is bits 5 through 7 of byte 4 indicate the type of information the cell is carrying for example user data or management information Cell Loss Priority CLP The last bit of byte 4 indicates the priority of the cell and whether the network can discard it under heavy traffic conditions Setting the bit to 1 indicates the network may discard the cell if necessary Header Error Control HEC The last byte of the header field contains
209. rating line 65 indicates SSCOP is not operating KKK KK KKK KKK KKK KK KK KKK KR KKK KKK AA KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK KK KK 68 11 03 95 11 44 59 921 DEBUG SLOT 5 ATM_LE Code 45 EC API msg LE Config Response from LEC 3 UserHandle 15592560 TransId 00ef6ee 69 11 03 95 11 45 01 929 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound OPEN VC REQ 70 11 03 95 11 45 01 929 TRACE SLO 5 A LE Code 41 EC Called SIG Open VC cct 3 call ref 4 sig id 1 C 8 114056 Rev A 71 11 03 95 11 45 01 929 DEBUG FSM atmlmst_cing_rr call_ref 4 Event ATM_VC_RESERVE_RSP_MS ATM Layer Manager Outbound Conn 72 11 03 95 11 45 01 933 DEBUG ATM Layer Manager Inbound Signa FSM atmlmst tri nws call ref 4 ATM Release request call ref ATM Sample Log SLOT 5 ATM SIG Code ATM Layer Manager Inbound ATM VC Reserve Respons State RESERVE WAIT ect Request SLOT 5 ATM_SIG Code lling Release Indication 24 24 State NETWORK WAIT Event AMUIAMTRELIND 4 cid 6 vpi vci 0 0 ATM Layer Manager Inbound ATM VC Release Respons ATM Layer Manager Outbound Clos Line 1405101 Circuit 3 ATM L value 27 EC could not open Config Direc 74 11 03 95 11 45 01 933 DEBUG 00ef6ee 75 11 03 95 11 45 05 914 DEBUG e Indication 73 11 03 95 1
210. rcuit can retransmit a number of RESTART and STATUS ENQUIRY messages before it considers the link down You can control how many of these messages the circuit retransmits Setting the Number of Allowable Restart Messages By default the circuit can retransmit three 3 RESTART messages before it considers the link down However you can set the number of RESTART messages that the circuit can send to a value from 1 through 100 Site Manager Num Restarts ReXmitted page A 51 Setting the Number of Allowable Status Enquiries By default the circuit can retransmit three 3 STATUS ENQUIRY messages before it considers the link down However you can set the number of STATUS ENQUIRY messages that the circuit can send to a value from 1 through 100 Site Manager Num Stat Enquiries ReXmitted page A 51 Pacing Calls You can define how the circuit paces its calls By default the circuit transmits up to two 2 calls per second However you can set this value from 0 through 2147483647 calls per second Site Manager Num Messages Sec for Call Pacing page A 51 9 9 Configuring ATM Services Where to Go Next Use the following table to determine where you want to go next For information about Go to Starting ATM Chapter 1 General ATM information Chapter 2 General Classical IP over ATM information Chapter 3 General LAN emulation information Chapter 4 Cus
211. rd parameters define the ATM service records for an interface The ATM Service Records List window also provides access to e Specific PVC parameters PVC service records only e A list of all SVCs on that service record SVC service records only e Access to LEC attributes SVC service records using LANE data encapsulation Figure A 3 shows the sequence of windows that can appear when you select the service attributes category and configure a PVC 114056 Rev A A 17 Configuring ATM Services Configuration Manager window Edit ATM Connector window ATM Service Records List window ATM Service Record Parameters window ATM Virtual Channel Link window ATM Virtual Channel Link Parameters window ATM0042A Figure A 3 Service Attributes Window Seguence PVCs Figure A 4 shows the seguence of windows that can appear when you select the service attributes category and configure an SVC with LANE A 18 114056 Rev A Site Manager Parameters Configuration Manager window ATM Service Records List window ATM Service Record Parameters window LAN Emulation Parameters window ATM Switched Virtual Circuit List window ee ATM0043A Figure A 4 Service Attributes Window Seguence SVCs with LANE Note With the exception of the LAN Emulation Parameters window the service attributes window seguence for an SVC running LLC SNAP or NULL data encapsulation RF
212. receives an ADD PARTY ACKNOWLEDGE ADD PARTY REJECT or RELEASE message the circuit clears the party Accept the default 14 or enter a value from 1 through 84 1 3 6 1 4 1 18 3 4 23 1 7 1 35 A 50 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Num Restarts ReXmitted Configuration Manager gt Protocols gt ATM gt ATM Signaling 3 1 through 100 Defines the number of RESTART messages retransmitted before the link is considered down Accept the default 3 or enter a value from 1 through 100 1 3 6 1 4 1 18 3 4 23 1 7 1 36 Num Stat Enquiries ReXmitted Configuration Manager gt Protocols gt ATM gt ATM Signaling 3 1 through 100 Defines the number of STATUS ENQUIRY messages retransmitted before the link is considered down Accept the default 3 or enter a value from 1 through 100 1 3 6 1 4 1 18 3 4 23 1 7 1 37 Num Messages Sec for Call Pacing Configuration Manager gt Protocols gt ATM gt ATM Signaling 2 0 through 2147483647 Defines the maximum number of signaling messages the interface can transmit per second Accept the default value 2 or enter a value from 0 through 2147483647 1 3 6 1 4 1 18 3 4 23 1 7 1 40 114056 Rev A A 51 Configuring ATM Ser
213. ress None Control Timeout 5 Max Unknown Frame Count 1 Max Unknown Frame Time 1 VCC Timeout Period Enable Enable Max Retry Count 1 Aging Time 300 Forward Delay Time 15 Expected LE_ARP Response Time 3 Flush Timeout 4 Path Switching Delay 6 Flush Protocol Enable LE Config Server ATM Address None Table B 7 ATM Interface Attributes Window Parameter Default Administrative State Up Enable ATM Signaling Enable Use Hardware MAC Address Enable MAC Address Override None 114056 Rev A Configuring ATM Services ATM FRE2 Line Parameters Table B 8 ATM FRE2 Line Parameters Parameter Default Enable Enable Data Path Notify Enable Data Path Notify Timeout 3s SVC Inactivity Timeout Enable Enable SVC Inactivity Timeout Secs 1200 s Table B 9 ATM FRE2 Physical Attribute Parameters Parameter Default Framing Mode SONET Scrambling Enable Loopback Disable Cell Insertion Unassigned ATM ARE Line Parameters Table B 10 ATM ARE Line Parameters Parameter Default Enable Enable Interface MTU 4608 Data Path Enable Enable Data Path Notify Timeout 1s SVC Inactivity Timeout Enable Enable SVC Inactivity Timeout Secs 1200 s Framing Mode SONET Clocking Signal Source Internal B 4 114056 Rev A Site Manager Default Settings for ATM Table B 10 ATM ARE Line Parameters continued Paramete
214. riptions Signaling AAL SAAL parameters define the connection and timer settings the router uses to maintain a switched connection SAAL provides reliable transport of signaling messages within the ATM protocol reference model Figure A 7 shows the window sequence for the SAAL category Configuration Manager window ATM Signaling AAL Records List window ATM0046A Figure A 7 ATM Signaling AAL Records List Window Seguence Parameter Enable Path Configuration Manager gt Protocols gt ATM gt Signaling AAL Default Enable Options Enable Disable Function Enables or disables SAAL on this interface Instructions Accept the default Enable if you want SAAL to remain enabled on this interface Select Disable if you do not want SAAL enabled on this interface MIB Object ID 1 3 6 1 4 1 18 3 4 23 1 8 1 2 114056 Rev A A 61 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Link Connection Arbitration Configuration Manager gt Protocols gt ATM gt Signaling AAL Active Active Passive Determines whether SAAL initiates link connections or waits for connections Accept the default Active if you want this interface to initiate connections Select Passive if you do not want this i
215. rmat the prefix uses For more information about the AFI byte refer to the ATM Forum UNI specification Entering a network prefix is optional If you do not enter an ATM Address Network Prefix in the range specified above the service record accepts the first prefix value that it receives from the switch Site Manager ATM Addr Net Prefix Optional page A 22 Entering an ATM Address User Part The ATM address user part suffix consists of a 6 byte endstation identifier and a 1 byte selector field This 7 byte portion of the ATM address can range between 00000000000000 and FEFFFFFFFFFFFF You can either autogenerate this value refer to Autogenerating ATM Addresses earlier in this chapter or you can enter the value manually Site Manager ATM Addr User Part page A 22 Enabling or Disabling a Service Record By default you enable a service record when you add it to the interface However you can enable or disable a specific service record at any time Enable the service record to allow traffic to flow over the service record and any of its VCs Disable the service record if you do not want traffic to flow over the service record or any of its VCs Site Manager Enable Disable page A 20 6 4 114056 Rev A Customizing ATM Interfaces and Service Records Defining a Service Record A service record is generally defined by the type of data encapsulation and virtual connection it uses
216. s Redefining the ILMI Control VC The ILMI control VC is a dedicated VPI VCI pair reserved for ILMI messages Having a permanent virtual circuit defined for ILMI allows the ATM router to send and receive initial registration data to and from an ATM switch Changing the ILMI VPI Number By default the virtual path identifier VPI for the ILMI control VC is 0 However you can change the VPI number from 0 through 255 Site Manager ILMI VPI page A 53 Changing the ILMI VCI Number By default the virtual channel identifier VCT for the ILMI control VC is 16 However you can change the VCI number from 1 through 65535 Site Manager ILMI VCI page A 54 Modifying Control VC Traffic Parameters You can modify the following traffic parameters for both the signaling and the ILMI control VCs e Peak Cell Rate e Sustainable Cell Rate e Maximum Burst Size Setting the PCR The PCR specifies the upper traffic limit in cells second that the ATM connection can submit How you set the PCR depends on e The optical transmission rate of your ATM device e The amount of traffic you expect on a particular VC 11 2 114056 Rev A Customizing Signaling and ILMI Control VCs e The rate you desire for each VC When setting the PCR keep the following in mind e Each VC can have its own PCR e The PCR cannot exceed the maximum rate for the physical media For example you cannot exceed 149 76 Mb s for a SONET S
217. s precedence depends on the virtual circuit type and for PVCs the order in which you assign the encapsulation type Encapsulation Methods Each ATM device must encapsulate PDUs before sending them to the SAR sublayer LANE LANE provides Ethernet IEEE 802 3 encapsulation of ATM PDUs for transmission over an emulated LAN You can assign LANE to SVCs only LLC SNAP Encapsulation Logical Link Control Subnetwork Access Protocol LLC SNAP RFC 1294 allows multiplexing of multiple protocols over a single ATM virtual circuit In this approach an IEEE 802 2 Logical Link Control LLC header prefixes each PDU You can assign LLC SNAP encapsulation to e PVC service records 114056 Rev A 2 9 Configuring ATM Services e SVC service records e Individual PVCs Note Assigning LLC SNAP to an SVC service record automatically invokes the technology defined in RFC 1577 Classical IP and ARP over ATM NULL Encapsulation RFC 1483 refers to this method as VC based multiplexing This method performs higher layer protocol multiplexing implicitly using ATM virtual circuits You can assign NULL encapsulation to e PVC service records e SVC service records e Individual PVCs that are also members of an LLC SNAP service record Note Assigning NULL to an SVC service record automatically invokes the technology defined in RFC 1577 Classical IP and ARP over ATM NLPID Encapsulation Originally developed for Fram
218. s using high speed data switching This device supports twelve 10Base T Ethernet interfaces and one ATM SONET SDH 155 Mb s UNI interface The EtherCell performs the following five primary functions e Registers its interfaces with the Connection Management System CMS Sets up and clears calls through the CMS 2 24 114056 Rev A Understanding ATM Concepts e Segments Ethernet packets into ATM cells e Reassembles ATM cells into Ethernet packets e Communicates with the multicast server MCS to coordinate virtual LAN configuration For additional information regarding EtherCell features and how to install and use the EtherCell refer to Using the Model 10328 X EtherCell Ethernet to ATM Switch Function of the Centillion 100 Switch The Centillion 100 integrates LAN switching and ATM to address a wide range of requirements that currently exist in LAN environments e Improving server performance by giving it a dedicated switched LAN port e Segmenting congested LAN segments e Concentrating multiple segments into a router e Replacing multiple bridges e Creating a multigigabit collapsed backbone The Centillion 100 has an ATM switching backplane and a modular chassis that can accommodate up to six switch modules Each switch module has multiple LAN interface and switching hardware that switches traffic among the local LAN ports The only traffic that traverses the ATM backplane is the traffic destined for ports on a different
219. s you to add additional protocols or delete and edit existing protocols using specific protocol menus Use Table 2 3 to locate the appropriate protocol menu for each access mode Table 2 3 Locating and Using Protocol Menus Menu Location PVCs and SVCs Hybrid PVCs Only ATM Service Record List window vit vt ATM Virtual Channel Link window v For nonbridging protocols t For bridging protocols Remember hybrid PVCs use their service record configurations for nonbridging protocols and their individual configurations for their bridging protocols ARP and Inverse ARP Support ATM supports address resolution protocol ARP enabling the router to dynamically resolve IP network layer protocol to VPI VCI address mappings ATM learns the address of the virtual circuit by detecting the virtual circuit that delivered the ARP response ATM also supports Inverse ARP However you can use Inverse ARP only if both the local and remote router support it Bay Networks uses both proprietary and standard ARP and Inverse ARP for PVCs that run IP Which method the PVC uses depends on how you configure the address resolution parameter for the IP interface Refer to Configuring IP Services for additional information about the IP address resolution parameter Bay Networks uses standard ARP and Inverse ARP for SVCs running Classical IP RFC 1577 and SVCs running LAN emulation 2 20 114056 Rev A Understanding ATM C
220. se parameters before transferring data Variable Bit Rate Versus Available Bit Rate Bay Networks currently provides the following ATM ILI pairs e An ATM FRE2 link module in conjunction with a FRE2 processor e AnARE link module in conjunction with an ARE processor Either ILI pair allows the router to connect directly to an ATM network over an ATM physical interface However depending on the ATM ILI pair the method of determining bandwidth varies Variable Bit Rate ATM FRE2 ILI pairs use variable bit rate VBR to determine bandwidth allocation VBR allows the VC to accumulate credits whenever it does nof use any bandwidth within its specified average When this VC does use bandwidth the accumulated credits allow it to transmit using the Peak Cell Rate PCR Available Bit Rate ATM ARE ILI pairs use available bit rate ABR to determine bandwidth allocation ABR is a method by which the bandwidth is separated into a guaranteed portion for PVCs and control VCs and an available portion for data SVCs Note Bay Networks does not currently incorporate ABR congestion control features as defined by the ATM Forum 114056 Rev A 2 19 Configuring ATM Services Rules for Editing Protocols Though specific protocol windows appear when you first add and define a service record you must follow a few specific rules when editing protocols Depending on the type of virtual circuit you are using Site Manager require
221. se these VPI VCI pairs for signaling we recommend that you not change these values 114056 Rev A A 43 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID VCI Configuration Manager gt Protocols gt ATM gt ATM Signaling 5 1 through 65535 Defines the virtual channel identifier VCD for the signaling VC The signaling VC is a dedicated VPI VCI pair reserved for signaling messages Accept the default 5 or enter a value from 1 through 65535 1 3 6 1 4 1 18 3 4 23 1 7 1 14 Caution The signaling VC 0 5 and the ILMI VC 0 16 are reserved These VCs remain in an operational state as long as signaling is enabled on the ATM interface Because most ATM devices use these VPI VCI pairs for signaling we recommend that you not change these values Parameter Path Default Options Function Instructions MIB Object ID T303 Configuration Manager gt Protocols gt ATM gt ATM Signaling 4 1 through 24 Defines the Setup Sent timer value in seconds This timer begins when the circuit initiates a call connection request by sending a SETUP message over the signaling VC The Setup Sent timer stops when the circuit receives either a CONNECT message indicating connection CALL PROCEEDING message indicating that the network received the SETUP message or RELEASE COMPLETE message indicating the rejection of the SETUP message from the netw
222. serve Respons FSM atmlmst cing rr call ref 3 State RESERVE WAIT Event ATM VC RESERVE RSP MS 64 11 03 95 11 44 59 335 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Outbound Connect Request 65 11 03 95 11 44 59 917 DEBUG SLO 5 ATM SIG Code 24 ATM Layer Manager Inbound SSCOP Status Indication SSCOP Status Indication su 0 ev 4 ui 1 sscf 0 sscop 0 1i 3 SSCOP Status Indication PROT_ST_D ATM Layer Manager Inbound Signalling Release Indication FSM atmlmst tri nws call_ref 3 State NETWORK WAIT Event AMUIAMTRELIND ATM Release request call_ref 3 cid 5 vpi vci 0 0 ATM Layer Manager Inbound ATM VC Release Respons ATM Layer Manager Outbound Close Indication 66 11 03 95 11 44 59 917 WARNING SLO 5 ATM LE Code 27 Line 1405101 Circuit 3 ATM LEC Close Indication call ref 3 cause value 41 67 11 03 95 11 44 59 921 WARNING SLOT 5 ATM LE Code 34 EC could not open Config Direct VCC reason 3 KKK KK KKK KKK X A AA AXA X AXA KKK KKK AAA KKK ck A AAA AAA KKK KKK KKK KKK KKK KKK KK KKK KK KK The LE client could not open the Config Direct VCC Cause value 41 in line 66 indicates a temporary failure Cause values are defined in the cause section of the ATM UNI specification In line 67 reason 3 indicates an LE client close reason was LE_SIGREASON_OTHER probably because SSCOP is not currently ope
223. service records Table 2 2 Assigning Data Encapsulation to Individual PVCs Service Record data Individual PVC data Hybrid PVC data encapsulation type encapsulation type encapsulation type LLC SNAP NULL or LLC SNAP LLC SNAP NULL NULL or LLC SNAP LLC SNAP NLPID NLPID NLPID When assigning a data encapsulation type to a PVC or group of PVCs keep the following in mind e The Site Manager ATM Service Records List and ATM Virtual Channel Link windows initially contain a default data encapsulation type of LLC SNAP e When you add a PVC it reads and uses the data encapsulation type specified in its ATM service record e You can globally assign a data encapsulation type to all nonhybrid PVCs in a particular service record or you can assign a data encapsulation type to individual group PVCs using the Site Manager ATM Virtual Channel Link window Caution Changing the data encapsulation type at the service record level changes the data encapsulation type for all nonhybrid PVCs on that service record For example if you change the ATM service record data encapsulation type from LLC SNAP to NULL the data encapsulation type for all PVCs except hybrid PVCs on that service record changes to NULL Site Manager does not ask you to verify this change e If you change the data encapsulation value in the Site Manager ATM Service Records List window all new PVCs that you add to that service record use the new value
224. settings cannot communicate For example if you configure a router to enable scrambling and configure a hub to disable scrambling the router and hub cannot communicate You can only set this parameter when using DS3 modules Select On or Off If you select On be sure to enable scrambling for all devices on the network If you select Off be sure to disable scrambling for all devices on the network 1 3 6 1 4 1 18 3 4 23 3 2 1 22 114056 Rev A Configuring ATM Services ATM Interface Parameter Descriptions Interface parameters define the state of the ATM interface Figure A 2 shows the window sequence for the interface attributes category Configuration Manager window Edit ATM Connector window Sa E Seel ATM Interface Attributes window ATM0041A Figure A 2 Interface Attributes Window Seguence Parameter Administrative State Path Configuration Manager gt Protocols gt ATM gt Interfaces Default Up Options Up Down Function Specifies whether this interface is enabled or disabled Instructions Accept the default Up if you want traffic to flow over this interface Set the state to Down if you do not want traffic to flow over this interface MIB Object ID 1 3 6 1 4 1 18 3 4 23 1 1 1 3 A 14 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Enable ATM Signaling Configuration Manag
225. size is the largest frame that the client can e Send on the Multicast Send VCC e Receive on the Multicast Forward VCC e Send and receive on Data Direct VCCs 114056 Rev A 8 3 Configuring ATM Services When you accept the default Unspecified the LEC obtains the maximum data frame size when it joins an ELAN However you can limit the maximum data frame size that the LEC can transmit to 1516 octets Note Selecting Manual configuration mode automatically sets the Maximum Data Frame Size to 1516 Site Manager Maximum Data Frame Size page A 33 Controlling Unknown Frame Distribution A frame is considered unknown when the LE client does not recognize the destination MAC address In this case the unknown frame goes to the BUS for distribution Setting unknown frame variables helps to limit unknown frame traffic to the BUS To control the distribution of unknown frames you must es Set the maximum number of unknown frames the LEC can send e Specify the amount of time allowed to send the unknown frames to the BUS Setting a Maximum Unknown Frame Count You can limit the number of unknown frames a LEC sends to the BUS By default a LEC can send only one unknown frame to the BUS within a specified unknown frame time see the following section However you can allow a LEC to send up to 10 unknown frames to the BUS within the maximum unknown frame time Site Manager Max Unknown Frame Count page A 35
226. station identifier information you want to use during user part autogeneration you can also specify on what service records you want the autogeneration feature to run By default when you add an SVC service record the user part autogeneration feature is enabled However you can enable or disable this feature on an individual service record at any time Site Manager User Part Autogeneration page A 21 Assigning ATM Addresses An ATM address is composed of a network prefix and a user part Bay Networks routers using the autogeneration feature create the user part of the ATM address The user part autogeneration feature combines the MAC address of the ATM interface and a unique selector byte to create unique addresses Figure 6 1 ATM Address 390000000000000000000000000000A20CA98F00 Network Prefix User Part 39000000000000000000000000 0000A20CA98F00 Selector MAC Address Byte 0000A20CA98F 00 ATM0037A Figure 6 1 ATM Address Components 114056 Rev A Configuring ATM Services Entering an ATM Address Network Prefix The ATM address network prefix specifies the ATM domain of which the service record is a part This thirteen byte portion of the ATM address can range between XX000000000000000000000000 and XXFFFFFFFFFFFFFFFFFFFFFFFF The XX byte must contain 39 45 or 47 These values define the authority and format identifier AFI The AFI byte identifies the group responsible for allocating the prefix and the fo
227. sulation Type parameter from LANE the default to LLC SNAP or NULL Refer to Appendix A for a detailed description of any parameter you may want to customize Note If you do not enter an ATM address user part the Configuration Manager uses the media access control MAC address of the interface or the MAC address override from the ATM Interface Attributes window as the first six bytes of the address The Configuration Manager then adds a selector byte unique to this service record to complete the address Click on OK The Select Protocols window opens Go to Enabling Protocols on an ATM Service Record later in this chapter Adding a Service Record for LANE To add a service record for LANE 1 Click on Service Attributes in the Edit ATM Connector window The ATM Service Records List window opens Click on Add The ATM Service Record Parameters window opens Refer to Appendix A for a detailed description of any parameter you may want to customize Note If you do not enter an ATM address user part the Configuration Manager uses the MAC address of the interface or the MAC address override from the ATM Interface Attributes window as the first six bytes of the address The Configuration Manager then adds a selector byte unique to this service record to complete the address 3 Click on OK The Select Protocols window opens 4 Go to the next section 114056 Rev A Configuring ATM Servi
228. t ATM gt Signaling AAL 70 1 through 120 Defines the SSCOP No Response Timer value in tenths of a second This value sets the allowable time between the receipt of STAT PDUs So as not to interrupt the flow of data the SSCOP does not require a reply to every POLL PDU This can cause problems in detecting a broken connection To alleviate this problem the no response timer runs parallel to the poll timer If both the no response timer and the poll timer expire the SSCOP clears the connection The No Response Timer value must equal at least the sum of the keep alive timer plus the length of one round trip delay Accept the default 70 or enter a value from 1 through 120 1 3 6 1 4 1 18 3 4 23 1 8 1 11 Connection Control Timer Configuration Manager gt Protocols gt ATM gt Signaling AAL 10 1 through 120 Defines the SSCOP Connection Control Timer value in tenths of a second This value sets the allowable time between the transmission of BGN END resynchronization RS and error recovery ER PDUs so long as the sender has not received an acknowledgment to any of these PDUs The CC timer must equal at least the length of one round trip delay Accept the default 10 or enter a value from 1 through 120 1 3 6 1 4 1 18 3 4 23 1 8 1 12 114056 Rev A A 63 Configuring ATM Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function
229. ter 9 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 10 4 114056 Rev A Chapter 11 Customizing Signaling and ILMI Control VCs The signaling VC and the ILMI VC are reserved These VCs remain in an operational state as long as signaling is enabled on the ATM interface Because most ATM devices use these VPI VCI pairs for signaling we recommend that you not change these values However you may want to redefine the signaling and ILMI control VCs for your specific network Redefining the Signaling Control VC The signaling VC is a dedicated VPI VCI pair reserved for signaling messages Having a permanent virtual circuit defined for signaling allows the ATM router to obtain necessary information about its signaling environment and properly negotiate the values it must use with other devices on the ATM network Changing the Signaling VPI Number By default the virtual path identifier VPI for the signaling control VC is 0 However you can change the VPI number from 0 through 255 Site Manager VPI page A 43 Changing the Signaling VCI Number By default the virtual channel identifier VCD for the signaling control VC is 5 However you can change the VCI number from 1 through 65535 Site Manager VCI page A 44 114056 Rev A 11 1 Configuring ATM Service
230. the HEC Its primary function is to guard against misdelivery of cells due to header or single bit errors However the HEC does not gauge the quality of the data in the information field The Cell Information Field Following the 5 byte cell header is a 48 byte information field containing user data The ATM adaptation layer AAL organizes the data in this field Refer to ATM Layers later in this chapter for additional information about the AAL Data Transmission Data transmission also called cell switching through the ATM network relies on the establishment of logical connections between ATM entities ATM is a connection oriented service This means that an ATM entity cannot transmit information until it establishes a connection with a receiving entity These connections consist of virtual channels virtual paths and transmission paths 114056 Rev A 2 3 Configuring ATM Services A virtual channel is a logical connection between two communicating ATM entities Each virtual channel may carry a different protocol or traffic type The virtual channel transports cells that have a common identifier The identifier is called the virtual channel identifier VCI and is part of the cell header You can establish virtual channels permanently or set them up dynamically allowing the network to adjust itself to the traffic demand A virtual path is a set of virtual channels between a common source and destination The virtual chan
231. the amount of time allowed to receive a SET RESPONSE message after sending a SET REQUEST message Accept the default 3 or enter a value from 1 through 120 1 3 6 1 4 1 18 3 4 23 1 9 1 17 114056 Rev A A 55 Configuring ATM Services Parameter ILMI Set Retry Count Path Configuration Manager Protocols ATM ILMI Signaling Default 3 Options 1 through 100 Function Specifies the number of retransmissions of the ILMI SET REQUEST message before the link is considered down Instructions Accept the default 3 or enter a value from 1 through 100 MIB Object ID 1 3 6 1 4 1 18 3 4 23 1 9 1 18 Signaling and ILMI Control VC Parameter Descriptions The parameters for signaling and ILMI control VCs are identical For the window sequence to access these control VCs refer to the sections describing signaling or ILMI parameters earlier in this appendix Parameter Path Default Options Function Instructions MIB Object ID Xmit Peak Cell Rate cells s Configuration Manager Protocols ATM ATM Signaling Sig VC Or Configuration Manager Protocols ATM ILMI Signaling ILMI VC 4716 300 through 365566 ATM FRE2 OC 3 SONET SDH ILI pairs 128 through 353207 ATM ARE OC 3 SONET SDH ILI pairs and Model 5780 ATM routers 128 through 96000 ATM ARE DS 3 ILI pairs 128 through 80000 ATM ARE E 3 ILI pairs G832 Framing Mode 128 through 72000 ATM ARE E 3 ILI pairs G751 Framing Mode Specifi
232. the circuit receives a CONNECT ACKNOWLEDGE message from the network indicating the completion of the ATM connection for that interface If the timer expires before the circuit receives a CONNECT ACKNOWLEDGE message the circuit clears the connection Accept the default 4 or enter a value from 1 through 24 1 3 6 1 4 1 18 3 4 23 1 7 1 29 A 46 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters T316 Configuration Manager gt Protocols gt ATM gt ATM Signaling 120 1 through 720 Defines the Restart Request Sent on Interface timer value in seconds This timer begins when the circuit sends a RESTART message to the network The circuit uses the RESTART message to return all VCs on the interface to the idle condition The Restart Request Sent on Interface timer stops when the circuit receives a RESTART ACKNOWLEDGE message from the network If the timer expires before the circuit receives a RESTART ACKNOWLEDGE message the circuit can transmit as many RESTART messages as specified with the Num Restarts ReXmitted parameter refer to the parameter description later in this section If the circuit still does not receive a response the circuit enters the Null state until the appropriate maintenance action is taken Accept the default 120 or enter a value from 1 through 720 1 3 6 1 4 1 18 3 4 23 1 7 1 30 114056 Rev A A 47 Configuring ATM Ser
233. tomizing an ATM line Chapter 5 Customizing an ATM interface or service record Chapter 6 Customizing PVCs Chapter 7 Customizing a LAN emulation client Chapter 8 Customizing ILMI Chapter 10 Customizing signaling and ILMI control VCs Chapter 11 Customizing SAAL Chapter 12 Accessing Site Manager parameters Appendix A Site Manager defaults Appendix B ATM log files Appendix C 9 10 114056 Rev A Chapter 10 Customizing ILMI In a switched ATM network an ATM device must register its ATM address with an ATM switch The router uses ILMI to send and receive initial registration data to and from an ATM switch Using a series of ILMI SNMP set and get commands the router 1 Initializes its ATM address table for the interface the switch also initializes its address table for the interface 2 Receives the ATM Address Network Prefix from the switch Combines this Network Prefix with its own User Part suffix 4 Transmits the entire address to the switch Enabling or Disabling ILMI By default ILMI is enabled on an interface when you create the circuit However you can enable or disable ILMI on an interface at any time Site Manager Enable page A 53 Modifying ILMI Timers and Retry Counters You can modify several timers and counters for ILMI These timers and counters include the e ILMI Get Timer and Retry Count e ILMI Get Next Timer and Retry Count e ILMI Set Timer and Retry Count 114056 Rev A 10 1
234. ts for connections passive Site Manager Link Connection Arbitration page A 62 Modifying SAAL Timers You can set several different signaling timers Table 12 1 gives the timer defaults ranges and descriptions Table 12 1 Signaling Timer Descriptions Name Default Range Description Poll Timer 7 1 through 120 Defines the SSCOP Poll Timer value in tenths of a second This value sets the allowable time between POLL PDU transmissions The poll timer ensures that the receiver continues to return a solicited status STAT PDU to the sender on a regular basis The timely receipt of STAT PDUs restarts the poll timer and allows for more efficient transmission error recovery Keep Alive 20 1 through 120 Defines the SSCOP Keep Alive Timer value in tenths of a Timer second This value sets the allowable time between POLL PDU transmissions if there are no pending sequence data SD PDUs The keep alive timer is generally greater than the poll timer and greater than the length of one round trip delay continued 12 2 114056 Rev A Customizing SAAL Table 12 1 Signaling Timer Descriptions continued Name Default Range Description No 70 1 through 120 Defines the SSCOP No Response Timer value in tenths of a Response second This value sets the allowable time between the Timer receipt of STAT PDUs So as not to interrupt the flow of data the SSCOP does not require a rep
235. u can have one 1 party in each multipoint connection on a circuit at any given time However you can specify a value from 0 through 32767 parties Site Manager Max Parties in Multipoint Connections page A 43 Setting the Minimum Memory Threshold The Minimum Memory Threshold defines the minimum percentage of buffer memory required to enable a new call The default value is 20 percent but you can specify a percentage from 10 percent through 100 percent in increments of 10 for example 10 20 30 and so on Site Manager Min Memory Threshold page A 43 114056 Rev A 9 3 Configuring ATM Services Setting Signaling Timers You can set several different signaling timers Table 9 1 show the timer defaults ranges and descriptions Table 9 1 Signaling Timer Descriptions Name Default Range Description T303 4 1 through 24 Defines the Setup Sent timer value in seconds This timer begins when the circuit initiates a call connection request by sending a SETUP message over the signaling VC The Setup Sent timer stops when the circuit receives either a CONNECT message indicating connection CALL PROCEEDING message indicating that the network received the SETUP message or RELEASE COMPLETE message indicating the rejection of the SETUP message from the network If the circuit does not receive one of these messages within the allotted time it transmits the SETUP message a second time If t
236. ual Circuits ATM devices communicate using virtual circuits These VCs transmit and receive ATM cells containing upper layer protocols Bay Networks ATM routers use service records to provide a way of creating logical interfaces within the physical ATM interface for these upper layer protocols In essence these service records allow you to e Organize multiple VCs into logical groups e Create direct point to point connections e Assign delete and modify upper layer protocols for just one PVC or for a group of VCs at any given time 2 8 114056 Rev A Understanding ATM Concepts Data Encapsulation Bay Networks ATM routers support multiprotocol encapsulation as defined in RFC 1483 enabling the router to multiplex combine and demultiplex separate bridged or routed protocol data units PDUs For transmission the encapsulation process adds a header between two and eight octets in length to the PDU to allow decoding The decoding process determines the proper service access point SAP When receiving information the encapsulation method evaluates the header to determine whether the PDU is a valid routed or bridged cell If it is valid the encapsulation method then strips the header from the cell and passes it to the appropriate SAP for routing or bridging You can choose from four data encapsulation types LANE LLC SNAP NLPID and NULL How you assign a data encapsulation type and which data encapsulation type take
237. ual circuits PVCs or switched virtual circuits SVCs but not both SVC is the default value when signaling is enabled on the interface PVC is the default value when signaling is disabled on the interface For additional information about virtual connection types refer to Chapter 2 Site Manager Virtual Connection Type page A 21 Entering an Emulated LAN Name Emulated LAN ELAN names are optional values up to 128 alphanumeric characters that provide administrative assistance when distinguishing among various ELANs You can enter the name of an ELAN to which you want the LEC to join If you choose not to enter an ELAN name the LECS assigns the LE client to an ELAN for this domain Site Manager Emulated LAN Name page A 23 Defining an Emulated LAN Type The emulated LAN type indicates the data frame format that the LEC uses when it joins an emulated LAN ATM allows you to choose from two emulated LAN types Unspecified and IEEE8023 Unspecified the default value indicates that you want the client to obtain the LAN type from the LAN emulation configuration server LECS when it joins an emulated LAN Setting this value to IEEE8023 specifies that you want the client to join only Ethernet IEEE 802 3 emulated LANs Site Manager Emulated LAN Type page A 24 6 6 114056 Rev A Customizing ATM Interfaces and Service Records Defining the MTU The MTU is the largest possible un
238. umber of SVC Applications parameter description A 42 specifying 9 2 Max Parties in Multipoint Connections defining 9 3 parameter description A 43 Max PD Before Poll parameter description A 64 setting 12 4 Max Point to Multipoint Connections defining 9 3 parameter description A 42 Max Point to Point Connections defining 9 3 parameter description A 42 Max Retry Count parameter description A 37 setting 8 6 Max STAT PDU Elements parameter description A 64 setting 12 5 114056 Rev A Index 7 Configuring ATM Services Max Unknown Frame Count parameter description A 35 setting 8 4 Max Unknown Frame Time parameter description A 36 specifying 8 5 Maximum AAL CPCS Receive SDU Size parameter description control VC A 60 PVC A 31 setting 11 7 PVCs 7 8 Maximum AAL CPCS SDU Size modifying control VCs 11 7 PVCs 7 8 Maximum AAL CPCS Transmit SDU Size parameter description control VCs A 59 PVCs A 30 setting control VCs 11 7 PVCs 7 8 Maximum Burst Size described 7 7 11 6 formula for calculating 7 7 11 6 parameter description control VCs A 59 PVCs A 30 setting PVCs 7 7 See also Xmit Burst Size Maximum Data Frame Size parameter description A 33 setting 8 3 maximum transmission unit parameter See MTU MBS See Maximum Burst Size MCS role of 2 27 menu path using A 3 messages retransmitting 9 9 Min Memory Threshold parameter description A 43 setting 9 3 mod
239. use the IP address of a network device to learn the physical address of that device An Ethernet LAN uses ARP as its address resolution scheme A LIS uses an address resolution scheme called ATMARP as defined by RFC 1577 On a LAN defined as a broadcast medium a router obtains the physical address of a network device by broadcasting an ARP reguest In a LIS which uses a nonbroadcast ATM medium a router sends an ATMARP request to an ATMARP server Each IP interface on the LIS opens a VC to the ATMARP server and registers its IP address and ATM address Figure 3 2 Using this information the server builds and maintains a table that maps LIS IP addresses to ATM addresses 114056 Rev A 3 3 Configuring ATM Services A router that needs the ATM address of a host on the LIS sends an ATMARP request to the server When the server returns a response containing the address the router extracts the ATM address of the host from the response and opens an SVC directly to the host using ATM UNI signaling If the server does not have an entry for the requested IP address it returns a negative acknowledgment signifying that the destination is unreachable Configuring an ATM Service Record for ATMARP When configuring a service record to act as an ATMARP client or server e Define a Classical IP service record Specify SVC as the virtual circuit type for the service record All network devices on a LIS must connect over SVCs Specify
240. value between 45 and 50 cells Set a value in the specified range 1 3 6 1 4 1 18 3 4 23 1 5 1 10 Note ATM ARE ILI pairs and Model 5780 ATM routers ignore the maximum burst size Parameter Maximum AAL CPCS Transmit SDU Size Path Configuration Manager gt Protocols gt ATM gt Service Records gt PVC Default 4608 Options 1 through 65535 Function Specifies the maximum AAL CPCS SDU size in bytes that this VC supports in the transmit direction Instructions Enter an octet value that represents the maximum packet size you intend this VC MIB Object ID to transmit We suggest that you accept the default value of 4608 bytes Most packets fall well within this limit 1 3 6 1 4 1 18 3 4 23 1 5 1 17 A 30 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Maximum AAL CPCS Receive SDU Size Configuration Manager gt Protocols gt ATM gt Service Records gt PVC 4608 1 through 65535 Specifies the maximum AAL CPCS SDU size in bytes that this VC supports in the receive direction Enter an octet value that represents the maximum packet size you intend this VC to receive We suggest that you accept the default value of 4608 bytes Most packets fall well within this limit 1 3 6 1 4 1 18 3 4 23 1 5 1 18 Data Encapsulation Type Configuration Ma
241. ve to specify an MTU size of 9188 bytes A 24 114056 Rev A Site Manager Parameters ATM Virtual Channel Link Parameter Descriptions Note ATM does not allow duplicate VPI VCI pairs on the same physical interface However duplicate VPI VCI pairs can exist on different physical interfaces Parameter VPI Number Path Configuration Manager gt Protocols gt ATM gt Service Records gt PVC gt Add Default None Options 0 through 255 Function Identifies the virtual path of the PVC The VPI is part of the cell header The header can contain a maximum of 8 VPI bits for a UNI connection This bit range allows for path identifiers from 0 to 255 Instructions Enter a value from 0 through 255 MIB Object ID 1 3 6 1 4 1 18 3 4 23 1 5 1 3 Note Following the recommendation of the ATM Forum virtual channel identifiers from 0 through 31 are reserved for signaling and added functionality 114056 Rev A A 25 Configuring ATM Services Parameter VCI Number Path Configuration Manager gt Protocols gt ATM gt Service Records gt PVC gt Add Default None Options 32 through 65535 Function Identifies the virtual channel of the PVC The VCI is part of the cell header The header can contain a maximum of 16 VCI bits This bit range allows for path identifiers from 0 through 65535 Instructions Enter a value from 32 through 65535 MIB Object ID 1 3 6 1 4 1 18 3 4 23 1 5 1 4 Note Following the recomme
242. ved timer value in seconds This timer begins when the circuit receives a CALL PROCEEDING message from the network If the signaling does not receive a CONNECT or RELEASE message before this timer expires it clears the connection for that virtual circuit T313 1 through 24 Defines the Connect Sent timer value in seconds This timer begins when the circuit sends a CONNECT message to the network The Connect Sent timer stops when the circuit receives a CONNECT ACKNOWLEDGE message from the network indicating the completion of the ATM connection for that interface If the timer expires before the circuit receives a CONNECT ACKNOWLEDGE message the circuit clears the connection continued 114056 Rev A 9 5 Configuring ATM Services Table 9 1 Signaling Timer Descriptions continued Name Default Range Description T316 120 1 through 720 Defines the Restart Request Sent on Interface timer value in seconds This timer begins when the circuit sends a RESTART message to the network The circuit uses the RESTART message to return all VCs on the interface to the idle condition The Restart Request Sent on Interface timer stops when the circuit receives a RESTART ACKNOWLEDGE message from the network If the timer expires before the circuit receives a RESTART ACKNOWLEDGE message the circuit can transmit as many RESTART messages as specified with the Num Restarts Per
243. vices ATM ILMI Signaling Parameter Descriptions ILMI signaling parameters define the SNMP timers and retry limits for registration with the ATM switch Figure A 6 shows the window sequence for the ILMI category Configuration Manager window Interim Local Management Interface ILMI ATM ILMI Signaling 1 r Parameters window L F ATM Control VC for ILMI window ATM0045A Figure A 6 ATM ILMI Signaling Parameters Window Sequence For control VC parameter descriptions refer to Signaling and ILMI Control VC Parameter Descriptions later in this chapter A 52 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Enable Configuration Manager gt Protocols gt ATM gt ILMI Signaling Enable Enable Disable Enables or disables ILMI on this interface Accept the default Enable if you want ILMI to remain enabled on this interface Select Disable if you do not want ILMI enabled on this interface 1 3 6 1 4 1 18 3 4 23 1 9 1 2 ILMI VPI Configuration Manager gt Protocols gt ATM gt ILMI Signaling 0 0 through 255 Defines the virtual path identifier VPI for the ILMI VC Accept the default 0 or enter a value from 0 through 255 1 3 6 1 4 1 18 3 4 23 1 9 1 8 Caution The signaling VC 0 5 and the ILMI VC 0 16 are r
244. vices Parameter Path Default Options Function Instructions MIB Object ID T316c Configuration Manager gt Protocols gt ATM gt ATM Signaling 120 1 through 720 Defines the Restart Reguest Sent on Channel timer value in seconds This timer begins when the circuit sends a RESTART message to the network The circuit uses the RESTART message to return this individual VC on the interface to the idle condition The Restart Request Sent on Channel timer stops when the circuit receives a RESTART ACKNOWLEDGE message from the network If the timer expires before the circuit receives a RESTART ACKNOWLEDGE message the circuit can transmit as many RESTART messages as specified with the Num Restarts ReXmitted parameter refer to the parameter description later in this section If the circuit still does not receive a response the circuit enters the Null state until the appropriate maintenance action is taken Accept the default 120 or enter a value from 1 through 720 1 3 6 1 4 1 18 3 4 23 1 7 1 31 A 48 114056 Rev A Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters T322 Configuration Manager gt Protocols gt ATM gt ATM Signaling 4 1 through 24 Defines the Status Enguiry Sent timer value in seconds This timer begins when the circuit sends a STATUS ENQUIRY messa
245. within the ATM network Role of Site Manager Site Manager software allows you to configure and monitor routing services in this case between emulated LANs or logical IP subnets for ATM FRE2 ILI pairs ATM ARE ILI pairs and Model 5780 ATM routers For general information about how to use Site Manager refer to Using Site Manager Software Role of SpeedView SpeedView software allows you to configure and monitor the Centillion 100 switch For additional information about SpeedView software refer to Centillion 100 Installation and Configuration Role of the CMS The ATM CMS software provides connection services within the ATM network Functions of the CMS include Managing call setup maintenance and clearing within a switch domain e Negotiating network resources a network path and bandwidth prior to sending ATM traffic 2 26 114056 Rev A Understanding ATM Concepts e Ensuring that the required network resources network path and minimum bandwidth exist prior to sending ATM traffic e Automatically sending calls along available paths and in the event of a network fault rerouting any new calls e Collecting combining and filtering network management information before sending it to the Optivity LAN 7 0 software Providing a central boot server location for a switch and other devices within the network e Supporting ILMI signaling Q 2931 and Q SAAL Quality of Service QoS and Connection Admission Control

Avaya Configuring ATM Services User's Manual

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