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Avaya Configuring Frame Relay Services User's Manual

1. M 2 2 Fortosnent SACU EE CONDO suspen bp diseases atau scimus Gd udi Od Oed ONCE ED 2 3 Switched Virtual Circuits m EET PE AT T T ee re 2 3 pe Pacts Svo COMPAEN 520 ee ree error rr enter trem ty Seren LR aZ REIR OR RED etre rrr trey 2 4 Fame Rea Hut c E meer ty eee cnn reer errr Eero T DD DU 2 5 Management gireises T E 2 7 117376 C Rev 00 V LAPF Operational States o T abe ianew T 2 9 LAPF Timeout and Retransmission TImars siccccisscsctsiendrcassmerenaseminiaasenmeveninrnens 2 10 T T T i T I LI T 2 10 Timer T209 carena opidi EE EINER RNI ETT T 2 11 y queer epis MATER PO OS 2 11 Je SID e Er tT OU ETRAS 2 12 Message FrocessiNg eee 2 13 Frame Polay Service Pecans iuo oq roce p E Gee dnd Naa 2 14 Default Service Record terns birds terne inne T teens 2 14 rn Wer puw Halere de 2 15 Sdn nd Moving PYES suresinden e abr burden UR aar cA 2 15 Frame Relay Access Modes re TT TAT bends E TOT na 2 15 Group Acess NODE ossa Git bog addo E Tre Tree rere re 2 15 Direct Access Mode ccecceccseccessccecsseescseecesseeecesseceueeecssaeceeeeeecesaeesesseeeseaeesessaeeaes 2 16 Hyd Access Mode 2 16 Using Hybrid Mode for Transparent Bridging eeeeeeeen 2717 Source Routing TT ieont T Piet peels TRN eas alesis apoa eer 2 18 PUR Coe TD ies cece T 2 18 Address
2. Frame relay network Bridge protocol Routing protocol Routing protocol sees Interface to network one interface to the network FR0007A Figure 2 6 Hybrid Mode Configuration Non Fully Meshed Network Using Hybrid Mode for Transparent Bridging Figure 2 7 shows bridged traffic between site A and site B The bridge router 1 is running on the frame relay interface and its configuration does not use hybrid mode Router 2 n B Bridge port sees one m path to sites A and B 34 Site A Router 1 Frame ET Los relay network 5 Router 3 EH E u Site B B FR0008A Figure 2 7 Example of a Bridged Network 117376 C Rev 00 2 17 Configuring Frame Relay Services In this example the bridge receives data from site A If the bridge does not recognize the destination address it tries to direct traffic through another bridge port However without hybrid access mode configured the frame relay bridge port views the paths to site A and site B as the same path Because the bridge does not send out data on the same port from which it just received data the bridge does not direct the data to site B In this case you should use hybrid access mode If you define the PVCs in hybr
3. 117376 C Rev 00 C 3 Configuring Frame Relay Services show frame relay The show frame relay lt option gt commands display configuration state and Statistical information about frame relay services The show frame relay command supports the following subcommand options summary state enabled disabled error type backup normal primary demand congestion dlci lt dlci gt interface lt name gt service lt name gt state forwarding throttling shutdownj ves dlci lt dlci gt interface lt name gt service SVCS calls priority shaping dlci lt dlci gt _ lt name gt type pvc dynamic pvc sve state active inactive invalid xoff control starting Linterface lt name gt service lt name gt services interface lt name gt service name multiline services pvcs dlci lt dlci gt name lt multiline_name gt services interface lt name gt service name ves dlci lt dlci gt interface lt name gt service lt name gt type pvc dynamic pvc svc shaping dlci lt dlci gt interface lt name gt service lt name gt 117376 C Rev 00 Monitoring Frame Relay Using BCC show Commands summary state enabled disabled error type backup normal primary demand Displays general information abou
4. You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Choose the service records to which you The SVC parameters become available want to add SVOs and set the SVC Support parameter to Enable Use Help or the parameter description on page A 36 117376 C Rev 00 3 41 Configuring Frame Relay Services Site Manager Procedure continued You do this System responds 5 Supply values for the following SVC parameters Use Help or the parameter descriptions that begin on page A 36 SVC Local Party Number SVC Local Party Sub Address optional SVC Local Party Number Plan SVC Local Party Type of Number 6 Click on Apply The SVC button replaces the Multiline button in the Frame Service List window 7 Click on the SVC button The Frame Relay Options List for Service window opens 8 Click on Add The Frame Relay SVC Options Add window opens 9 Supply values for the following SVC parameters Use Help or the parameter descriptions in Appendix A Remote Party Number Remote Party Sub Address 10 When you are finished click on OK You return to the Frame Relay Options List for Service window 11 Add as many SVC options as your You return to the Frame Relay Service network require
5. 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Throughput Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs 0 0 to 2 147 483 647 b s The rate in bits per second at which data travels over this VC when no congestion is occurring To enable traffic shaping this parameter and the Committed Burst parameter must be set to values greater than zero Your carrier supplies the CIR or throughput value which you enter in this parameter 1 3 6 1 4 1 18 3 5 9 9 2 1 18 Congestion Control Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs Inherit Disable Enable Inherit Enables or disables congestion control on this interface To activate congestion control set to Enable This value tells the router to drop all traffic destined for a congested PVC until the congestion clears To deactivate congestion control set to Disable If you want the Congestion Control setting for this PVC to match the setting you specify for the frame relay Interface Congestion Control parameter accept the default Inherit 1 3 6 1 4 1 18 3 5 9 9 2 1 25 117376 C Rev 00 A 29 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options
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7. Configuring Frame Relay Services BayRS Version 12 20 Site Manager Software Version 6 20 BCC Version 4 00 Part No 117376 C Rev 00 May 1998 n Bay Networks e Bay Networks 4401 Great America Parkway 8 Federal Street Santa Clara CA 95054 Billerica MA 01821 Copyright 1998 Bay Networks Inc All rights reserved Printed in the USA May 1998 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 Trademarks Bay Networks and the Bay Networks logo are trademarks of Bay Networks Inc All other trademarks and registered trademarks are the property of their respective owners 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 Notwithstanding any other license agreement
8. Displays only SVCs configured on the specified interface service name Displays only SVCs on the specified service The output contains the following information Interface DLCI CIR Inbound Burst CIR Inbound Burst Committed Inbound Burst Excess Outbound Burst CIR Outbound Burst Committed Outbound Burst Excess Interface on which the SVC resides Name of the SVC associated with this circuit Committed information rate or throughput indicates the number of bits per second a carrier guarantees the router can transmit over a specified time interval when there is no congestion Number of requested incoming throughput kbits second when no congestion is occurring Number of bits that the router can receive over a specified time interval B Number of extra bits the router attempts to receive when there is no congestion Be Requested outgoing throughput when no congestion is occurring The number of bits that the router can send over a specified time interval Boy The number of extra bits the router attempts to send when there is no congestion Be 117376 C Rev 00 Monitoring Frame Relay Using BCC show Commands multiline services pvcs dlci d ci name lt multiline_name gt Displays information about frame relay service information for multiline and shows PVCs that are priority information for active frame relay SVCs multiline services Shows frame relay information for mu
9. Edit Circuit Services Frame Relay Service List window SVCs Add International Unknown International Specifies the type of number the remote caller uses If the caller uses an international type number accept the default International Otherwise choose Unknown 1 3 6 1 4 1 18 3 5 9 9 10 1 10 A 42 117376 C Rev 00 Site Manager Parameters SVC Options List for Service Parameters Parameter Path Default Options Function Instructions MIB Object ID When you have finished editing the Options parameters in the Options Add window you can return to the Options List for Service window to edit the remaining options parameters for this SVC To access the Frame Relay Options List for Service window Path to Frame Relay Options List for Service Window You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Click on SVCs The Frame Relay Options List for Service window opens SVC Control Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs Enable Enable Disable Enables or disables SVC options record for this interface Accept the default to enable the options record 1 3 6 1 4 1 18 3 5 9 9 10 1 2 117376 C Rev 00 A 43 Configuring Frame Relay
10. Enable you to gather multiple VCs for each network protocol into a separate group or service record thereby reducing the number of buffers needed per circuit during broadcasts e Lower customer costs by creating multiple broadcast domains 117376 C Rev 00 2 15 Configuring Frame Relay Services Direct Access Mode Direct mode describes a service record with one PVC In direct access mode upper layer protocols treat the frame relay network as a series of point to point connections The upper layer protocols view each PVC as an individual network interface Service records in direct access mode e Limit broadcasts to one PVC e Enable multiple layer 3 networks per interface Hybrid Access Mode Hybrid access mode as its name implies combines characteristics of group and direct access modes Frame relay hybrid mode enables you to use the same PVCs for both routing and bridging It works only for non fully meshed network configurations that use e Both bridging and routing over a single frame relay interface e Spanning tree bridging In a fully meshed network PVCs exist between each pair of nodes in the network In a non fully meshed network PVCs exist only between nodes that need to communicate Figure 2 6 shows a non fully meshed network that uses hybrid mode 2 16 117376 C Rev 00 Frame Relay Overview Bridge protocol sees two interfaces Frame relay Direction of data to the network EN network interface 5
11. Enter a value from to 255 according to what the network dictates Full Enquiry Interval does not function if you set Mgmnt Type to DLCMI None 1 3 6 1 4 1 18 3 5 9 9 1 1 11 117376 C Rev 00 A 7 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Error Threshold Configuration Manager gt Protocols gt Frame Relay gt Interfaces 3 0 to 2 147 483 647 Together with the value of the Monitored Events parameter establishes a criterion to evaluate the quality of the router frame relay network connection If you accept the default values for both Error Threshold and Monitored Events three status exchange errors in a sequence of four attempted exchanges will bring the connection down With Error Threshold set to 5 and Monitored Events set to 10 five status exchange errors in a continuous sequence of 10 attempted exchanges will bring the connection down After the network clears the connection status exchanges continue and the router monitors line integrity When the number of consecutive successful status exchanges is equal to the Error Threshold value the router restores the frame relay connection Error Threshold and Monitored Events are nonfunctional if you set Mgmnt Type to DLCMI None Enter the number of faulty status exchanges that will bring the connection down
12. Frame Relay Overview Transmit Inactivity Timer and Protocol Priority No Reset Filter A Protocol Priority filter with a No Reset action affects the operation of the timer that monitors data the router transmits Normally this timer restarts for timer modes Both Either or Transmit Only But data the router transmits over an SVC that matches a Protocol Priority filter with a No Reset action does not restart the transmit inactivity timer This may cause the SVC to disconnect even though it is transmitting data Managing Routing Information Protocol RIP Over SVCs RIP is a mechanism that IP and IPX use to inform network entities of routing topology changes The IP and IPX protocols allow you various controls over the frequency and destination of RIP packets Because RIP packets can affect how the router establishes and disconnects frame relay SVCs the software has controls that apply to how RIP interacts with the frame relay SVC Inactivity Timer parameter and the Inactivity Timer Mode parameter For more information see Appendix B RIP Management for Frame Relay SVCs Multiline for PVCs Frame relay provides a link redundancy feature called multiline which works with frame relay PVCs Multiline is a Bay Networks proprietary implementation that lets you group two or more physical lines that back each other up in case of a failure This ensures that information arrives at its destination on the network In addition if both lines are up
13. Function Instructions MIB Object ID Congestion Timer Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs 1 0 5 to 5 seconds in 0 5 second intervals Specifies the length of time in seconds during which the router counts congestion notifications If the router receives the number of congestion notifications set by the Congestion Counter parameter the router stops transmitting data The router resumes transmission once it stops receiving congestion notifications Set the length of time the router should count congestion notifications from the network If you set this parameter for a long time period the router may be less likely to stop transmission for an intermittent congestion condition However the router may be slow to detect congestion resulting in long transmission delays once the congestion has cleared If you set the Congestion Control parameter to Inherit the PVC uses DLCMI for congestion control not the value of this parameter 1 3 6 1 4 1 18 3 5 9 9 2 1 27 Congestion Counter Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs 20 1 to 500 notifications Sets the maximum number of congestion notifications that the router can receive during the Congestion Timer period before it stops transmitting Specify the congestion count The smaller the number the more quickly the router detects congestion and stops transmitting Note however that if you set the C
14. Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID 3 Click on Services The Frame Relay Service List window opens 4 Click on the PVCs button The FR PVC List for Service window opens Circuit State Set Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs Active Invalid Active Inactive Specifies the state of the PVC To indicate to a frame relay switch that the PVC is available for use set to Active To indicate that the PVC is configured but not available for use for example before your switch provider actually activates the PVC set to Inactive If the PVC is configured but the switch is unaware of it choose Invalid 1 3 6 1 4 1 18 3 5 9 9 2 1 7 Multicast Configuration Manager Protocols Frame Relay Services PVCs Unicast Unicast Multicast Indicates whether this PVC is multicast or unicast Set to Unicast or Multicast according to PVC type as the frame relay switch provider instructs 1 3 6 1 4 1 18 3 5 9 9 2 1 19 117376 C Rev 00 A 27 Configuring Frame Relay 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 Hybrid Mode Configuration Manager gt Protocols gt Fr
15. dici adici interface lt name gt service lt name gt type pvc dynamic pvc svc state active inactive xoff control starting frame relay services lt none gt interface lt name gt service lt name gt frame relay shaping lt none gt dici dici interface lt name gt service lt name gt frame relay congestion lt none gt dici dici interface lt name gt service lt name gt state forwarding throttling shutdown frame relay svcs calls priority dici dici shaping interface lt name gt service lt name gt frame relay multiline services pvcs dici dici name lt multiline gt frame relay vcs lt none gt dici dici stats interface lt name gt service lt name gt type pvc dynamic pvc svc continued C 2 117376 C Rev 00 Monitoring Frame Relay Using BCC show Commands Table C 1 Frame Relay Show Commands continued lt container gt lt keyword gt lt arguments gt lt filter_flags gt lt filter_arguments gt frame relay shaping low normal dici dici stats high sum interface lt name gt service lt name gt frame relay dicmi lt none gt interface lt name gt stats frame relay lapf receive transmit interface lt name gt stats error traffic frame relay signalling receive transmit interface lt name gt stats frame relay error lt none gt interface lt name gt stats
16. 1 3 6 1 4 1 18 3 5 9 9 10 1 19 117376 C Rev 00 A 47 Configuring Frame Relay 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 LL Core Out Throughput Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 0 0 to 21447463647 b s Specifies the requested outgoing throughput b s when no congestion is occurring To enable traffic shaping the throughput parameters and the burst parameters must be set to values greater than zero Choose a value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 20 LL Core In Throughput Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 0 0 to 21447463647 b s Specifies the requested incoming throughput kbits second when no congestion is occurring To enable traffic shaping the throughput parameters and the burst parameters must be set to values greater than zero Choose a value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 21 LL Core Min Out Throughput Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 0 0 to 21447463647 b s Specifies the minimum acceptable outgoing throughput To enable traffic shaping the throughput parameters and the burst parameters must be set to values great
17. 1 5 2 2 5 3 3 5 4 4 5 and 5 seconds The default is 1 second 117376 C Rev 00 3 23 Configuring Frame Relay Services For example the following command line sets a congestion timer of 2 5 seconds frame relay 1 2 congestion timer 2 5 frame relay 1 2 Congestion Counter To change the value for the congestion counter 1 Navigate to the prompt for the interface that you want to edit For example box serial 1 2 frame relay 1 2 2 Enter the congestion counter command and the value you want the interface to use congestion counter integer integer is the maximum number of congestion notifications the router can receive during the Congestion Timer period before it stops transmitting data Legal counter values are 1 to 500 notifications The default is 20 For example the following command line sets a congestion counter of 30 notifications frame relay 1 2 congestion counter 30 frame relay 1 2 3 24 117376 C Rev 00 Customizing Frame Relay Congestion Method To change the value for the congestion method 1 Navigate to the prompt for the interface that you want to edit For example box serial 1 2 frame relay 1 2 Enter the congestion method command and the value you want the interface to use congestion method value Legal values are throttle then shutdown shutdown the default throttle For example the following command line sets a congestion method of t
18. Error Threshold and Monitored Events Error threshold and monitored events together establish a criterion to evaluate the quality of the router s frame relay network connection The error threshold is the number of faulty status messages that must occur to terminate the connection Monitored events is the number of status message exchanges within which number those errors occur 117376 C Rev 00 3 7 Configuring Frame Relay Services For example if you accept the default of 3 for the error threshold and the default of 4 for monitored events three status exchange errors in a sequence of four attempted exchanges brings the connection down Similarly if you set error threshold to 5 and monitored events to 10 five status exchange errors in a continuous sequence of 10 attempted exchanges brings the connection down Note The Error Threshold parameter and Monitored Events parameters do not function if you set Mgmnt Type to DLCMI None You can use either the BCC or Site Manager to specify error threshold and monitored events Using the BCC To specify error threshold and monitored event values use these instructions Polling Interval To set the polling interval 1 Navigate to the dlcmi prompt For example box serial 1 2 frame relay 1 2 dlcmi 2 Enter the polling interval command and the value you want the network to use polling interval integer integer is the polling interval in seconds the legal val
19. For example box serial 3 2 frame relay 3 2 service 8 0 32 Enter the svc inactivity timer command with the integer value you want to use svc inactivity timer integer integer is the length of time in seconds before the SVC terminates because no data has travelled over the circuit in the direction you specify in the inactivity direction attribute Legal timer values are 0 to 2147483647 seconds The default is 60 seconds For example the following command line sets the inactivity timer to 90 seconds service 8 0 32 svc inactivity timer 90 service 8 0 32 Enter the svc inactivity direction command with the value you want to use svc inactivity direction value Legal direction values are 117376 C Rev 00 3 55 Configuring Frame Relay Services both outbound inbound either For example the following command line sets the inactivity direction to outbound service 8 0 32 svc inactivity direction outbound service 8 0 32 Inactivity Values for an SVC To set the inactivity timer and direction for a particular SVC option record 1 Navigate to the SVC options For example box serial 3 2 frame relay 3 2 service 8 0 32 svc options toronto Enter the inactivity timer command with the value you want to use inactivity timer integer integer is the length of time in seconds before the SVC terminates because no data has travelled over the circuit in the direction you specify in
20. Frame Relay gt Interfaces gt Signaling 10 2 to 90 seconds Indicates the number of seconds allowed from the time the router receives a call proceeding message to the time the router receives and a connect or disconnect message In the event of a timeout the router clears the call The timer is not restarted Enter the timer value for call proceeding 1 3 6 1 4 1 18 3 5 9 9 9 1 9 A 20 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters T322 Status Eng Retry Timer Configuration Manager gt Protocols gt Frame Relay gt Interfaces gt Signaling 4 2 to 90 seconds Indicates the number of seconds allowed from the time the router sends a status inquiry message to the time the router receives an incoming status disconnect release or release complete message If a timeout occurs the router retransmits the status inquiry and restarts the timer This occurs for the number of times set in the N322 Status Eng Retry Max parameter see the next parameter after which the call will be cleared Enter the timer value for status inquiries 1 3 6 1 4 1 18 3 5 9 9 9 1 10 N322 Status Eng Retry Max Configuration Manager gt Protocols gt Frame Relay gt Interfaces gt Signaling 4 1 to 20 Indicates the maximum number of times the router will retransmit a status inq
21. Middle East and 33 4 92 96 15 83 Africa Asia Pacific 61 2 9927 8822 Tokyo and Japan 81 3 5402 7041 XX 117376 C Rev 00 Chapter 1 Starting Frame Relay The quickest way to begin using frame relay on your network is to enable it with default values for all interface parameters and with a default service record that includes at least one permanent virtual circuit PVC or switched virtual circuit SVC The topics that follow describe this procedure Topic Page Starting Configuration Tools A Preparing a Configuration File 1 2 Starting Frame Relay 1 2 Configuring PVCs and SVCs 1 6 Configuring Adjacent Hosts for an SVC 1 9 Deleting Frame Relay from a Platform 1 9 Starting Configuration Tools Before configuring frame relay services see the appropriate user guide for instructions on how to start and use the Bay Networks configuration tool of your choice Configuration Tool User Guide Bay Command Console BCC Using the Bay Command Console Site Manager Configuring and Managing Routers with Site Manager These guides also describe generally how to create and modify a device configuration 117376 C Rev 00 Configuring Frame Relay Services Preparing a Configuration File To prepare a configuration file 1 Create and save a configuration file that has at least one WAN interface 2 Retrieve the configuration file
22. Remote Party Type of Number Edit values for the following parameters Use Help or the parameter descriptions that begin on page A 51 Congestion Disable Congestion Timer Congestion Counter Congestion Method applies only when you enable traffic shaping Edit other parameters if you want and click on Apply When you are finished click on Done You return to the Frame Relay Service List window Click on Done You return to the main Configuration Manager window 3 64 117376 C Rev 00 Customizing Frame Relay Using Traffic Shaping with SVCs To use traffic shaping you set attributes or parameters specific to throughput committed burst and excess burst To enhance the effectiveness of traffic shaping you may also want to edit values for the SVC Congestion Control and Congestion Method attributes or parameters For more information about the interaction between these elements and traffic shaping see Traffic Shaping Considerations in Chapter 2 You can use either the BCC or Site Manager to shape traffic with SVCs Using the BCC To configure traffic shaping you set values for committed burst excess burst CIR and traffic shaping Committed Burst The committed burst rate B defines the number of bits the router can transmit over a specified time interval when congestion occurs For SVCs you configure two attributes to define committed burst committed burst in and c
23. To set the information limit 1 Navigate to the LAPF prompt For example box serial 1 2 frame relay 1 2 lapf 1 2 2 Enter the information limit command and the value you want to use information limit integer integer is the number of octets Legal values are 260 to 2052 The default is 260 For example the following command line sets an information limit of 350 lapf 3 2 information limit 350 lapf 3 24 Window Size Window size indicates the maximum number of outstanding numbered information I frames allowed across a connection These are frames that have travelled across the link but which the peer has not acknowledged Each of these frames remains in a backup queue until the peer sends an acknowledge message A longer queue adversely affects performance You should accept the default To set the window size 1 Navigate to the LAPF prompt 3 48 117376 C Rev 00 Customizing Frame Relay For example box serial 1 2 frame relay 1 2 lapf 1 2 2 Enter the window size command and the value you want to use window size lt integer gt integer is the number of outstanding frames allowed Legal values are 1 to 127 The default is 7 For example the following command line sets a window size of 45 lapf 3 2 window size 45 lapf 3 24 Using Site Manager To edit LAPF parameters Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Pr
24. serial 1 2 and enter frame relay For example seriall 2 frame relay frame relay 1 2 You have enabled frame relay 3 Use frame relay Frame relay is completely configured with supplied default values You can use frame relay with the current default settings or you can customize frame relay to meet the specific needs of your network To determine which frame relay interface attributes that you can configure and what their current values are enter the info command frame relay 1 2 info state enabled debug options none trace options none address length 2 congestion timer 1 address type q922 multicast control disabled congestion control disabled congestion counter 20 hangup on dlcmi failure disabled congestion method shutdown traffic shaping timer 128 high queue limit 30 normal queue limit 200 low queue limit 30 To determine what other services you can configure under frame relay enter the help tree command and the BCC will display available services For example frame relay 1 2 help tree The configuration tree below this context is dlcmi signalling lapf default service pvc svc options ip 117376 C Rev 00 Configuring Frame Relay Services rip ospf neighbor arp igmp relay ipx rip sap static route adjacent host static service route filter service network filter service name filter service pvc svc options rip ospf neighbor arp igmp relay ipx rip sap stat
25. serial 1 2 frame relay 1 2 lapf 1 2 2 Enter the idle timer command and the value you want to use idle timer integer integer is the length of time that the router allows with no data being transmitted Legal values are 1 to 120 seconds The default is 30 For example the following command line sets a timer of 18 seconds lapf 3 2 idle timer 18 lapf 3 24 Retransmission Limit Retransmission limit indicates the maximum number of LAPF retransmissions that can occur after the retransmission timer expires The connection terminates if the router reaches the retransmission limit To set the retransmission limit 1 Navigate to the LAPF prompt For example box serial 1 2 frame relay 1 2 lapf 1 2 117376 C Rev 00 3 47 Configuring Frame Relay Services 2 Enter the retransmission limit command and the value you want to use retransmission limit lt integer gt lt integer gt is the number of times that the router retransmits after the retransmission timer expires Legal values are 1 to 20 The default is 3 For example the following command line sets a retransmission limit of 8 tries lapf 3 2 retransmission limit 8 lapf 3 24 Information Limit Information limit indicates the maximum number octets of data allowed in the LAPF information field The larger the number allowed the less overhead on the system However a large value could exceed the system buffer size You should accept the default value
26. the router uses both lines simultaneously Two or more physical lines must be available for a multiline configuration Figure 2 12 illustrates a multiline configuration DLCI100 Line a DLCI 200 Frame relay network Router Router pDLCI 100 Line B DLCI 200 FR0009A Figure 2 12 Multiline Network 117376 C Rev 00 2 35 Configuring Frame Relay Services In this example when the router receives traffic destined for the network it alternates or randomizes depending on how you configure it between line A and line B to transmit the data The router uses both lines simultaneously to balance the traffic between each path If one of these lines goes down the router uses the remaining line You can create a multiline configuration of up to four service records Each service record must be on a different physical line on the router Each line should be on a different slot to provide fault tolerance You must also match DLCIs in each service record of the multiline Matching DLCIs ensures that a backup exists for each PVC The most important part of configuring multiline is setting the PVC DLCI number This number identifies each PVC thereby specifying a path for the router to direct data to the network For each frame relay PVC that you con
27. to throttle which means queue the traffic But not all applications have a robust mechanism to deal with lost or out of sequence frames You can use Bay Networks WAN Compression Protocol WCP protocol prioritization congestion control and traffic shaping either singly or in combination to help control the flow of traffic and avoid loss of data 2 20 117376 C Rev 00 Frame Relay Overview Data Compression You can configure both hardware and software based data compression over WANs running frame relay Enabling compression improves bandwidth efficiency by eliminating redundant strings in data streams This in turn improves network response times and reduces line costs Enabling compression on a frame relay link also provides reliability Both sides of a link using compression maintain a history of data that has already traveled across the network and WCP WAN Compression Protocol detects and retransmits dropped packets To use data compression with frame relay the Compression Control attribute or parameter must be set to Enable the default value see Enabling Compression for PVCs on page 3 32 for information about how to access this attribute or parameter You must also select WCP from the protocols menu For a complete discussion of data compression see Configuring Data Compression Services Data Encryption Bay Networks data encryption services enable you to protect sensitive traffic on your network Encr
28. 1 3 6 1 4 1 18 3 5 9 9 1 1 12 Monitored Events Configuration Manager gt Protocols gt Frame Relay gt Interfaces 4 0 to 2 147 483 647 events Together with the value of the Error Threshold parameter establishes a criterion to evaluate the quality of the router frame relay network connection See the description of the Error Threshold parameter for more information Enter the number of consecutive status exchanges you want the router to monitor 1 3 6 1 4 1 18 3 5 9 9 1 1 13 A 8 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Multicast Configuration Manager gt Protocols gt Frame Relay gt Interfaces Disable Enable Disable Enables or disables support for frame relay multicast service If your frame relay subscription service provides multicast service and if this frame relay interface should receive multicast messages set to Enable 1 3 6 1 4 1 18 3 5 9 9 1 1 16 Congestion Control Configuration Manager gt Protocols gt Frame Relay gt Interfaces Disable Enable Disable Enables or disables congestion control on this interface A value of Enable tells the router to drop all outbound traffic destined for a PVC where congestion is occurring until the congestion clears The value of this parameter affects all PVCs that you do not individually
29. 10 5 to 30 seconds Specifies the interval between status inquiry messages that the router transmits Status inquiry messages cause a network response in the form of a link integrity verification message or full status message Successful completion of the request response handshake verifies the status of the router frame relay network link You should accept the default value 10 seconds If this value does not match what the network requests enter a value that is appropriate for your network in the range of 5 to 30 seconds Polling Interval does not function if you set Mgmnt Type to DLCMI None 1 3 6 1 4 1 18 3 5 9 9 1 1 10 Full Enquiry Interval Configuration Manager gt Protocols gt Frame Relay gt Interfaces 6 1 to 255 polling intervals Specifies the interval between full status inquiry messages that the router transmits Full status inquiry messages cause the network to send a full status report message which lists all PVCs the PVC status active or inactive and new or previously established This parameter works with the Polling Interval parameter The default value 6 tells the router to send a full status inquiry every 6 polling intervals For example with a polling interval of 10 and a full enquiry interval of 6 the router transmits a full status inquiry every 60 seconds with a polling interval of 20 and a full enquiry interval of 30 the router transmits a full status inquiry every 10 minutes 600 seconds
30. 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Services The Frame Relay Service List window opens 4 Click on PVCs 5 Click on the PVC entry The Frame Relay PVC List window opens 6 Click on Delete The confirmation window closes Site Manager removes the PVC entry from the Frame Relay PVC List window Moving PVCs from One Service Record to Another You can use Site Manager to move PVCs on the same line from one service record to another You can move PVCs to already existing or to new service records To move PVCs Site Manager Procedure You do this 1 Click on a port in the Configuration Manager window configured for frame relay System responds The Edit Connector window opens 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Services The Frame Relay Service List window opens 4 Click on PVCs The FR PVC List for Service window opens 117376 C Rev 00 3 17 Configuring Frame Relay Services Site Manager Procedure continued You do this System responds 5 Select the DLCI of the PVC to be moved The Frame Relay PVC Move window and click on Move opens 6 Click on OK The FR Service Record Selection window opens 7 Click on the target service record and click The FR Service Record Selection window on Select closes revealing the c
31. Annex A Annex D Management services as specified in Annex D to ANSI standard TI 617 Annex A Sw Management services for the DCE side of the connection Annex A Annex D Sw Management services for the DCE side of the connection Annex D to TI 617 LMI Management services as specified by Revision 1 of the Local Management Interface standard LMI Sw Management services for the DCE side of LMI None No management interface between the router and the frame relay network Interface type Normal leased service with no backup service Primary Shared the backup circuit uses the primary configuration Primary Secondary the backup circuit uses its own configuration State of the interface as follows Fault Interface is not operating Init Interface is initializing has not yet started NotPres Interface is not yet present Running Interface is operating properly Number of times the interface has been in fault mode Total number of VCs configured on the interface Total number of VCs active on the interface Total number of frame relay service records or circuits C 6 117376 C Rev 00 Monitoring Frame Relay Using BCC show Commands vcs dlci lt d ci gt interface lt name gt service lt name gt type pvc dynamic pvc svc state active inactive invalid xoff control starting Displays information about all those frame relay VCs with the specified DL
32. Customizing Frame Relay Polling Interval The polling interval specifies the interval between status inquiry messages that the router transmits Status inquiry messages cause a network response in the form of a link integrity verification message or full status message Successful completion of the request response handshake verifies the status of the router frame relay network link You should accept the default value 10 seconds If this value does not match what the network requests enter a value that is appropriate for your network in the range of 5 to 30 seconds The polling interval does not function if you set the Management Mgmnt Type parameter to DLCMI None Full Enquiry Interval The full enquiry interval specifies the interval between full status inquiry messages that the router transmits Full status inquiry messages cause the network to send a full status report message which lists all PVCs and their status active or inactive and new or previously established The default value 6 tells the router to send a full status inquiry every 6 polling intervals For example with a polling interval of 10 and a full enquiry interval of 6 the router transmits a full status inquiry every 60 seconds With a polling interval of 20 and a full enquiry interval of 30 the router transmits a full status inquiry every 10 minutes 600 seconds The full enquiry interval does not function if you set the Mgmnt Type parameter to DLCMI None
33. LICENSORS BE LIABLE FOR ANY COST OF SUBSTITUTE PROCUREMENT SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES RESULTING FROM INACCURATE OR LOST DATA OR LOSS OF USE OR PROFITS ARISING OUT OF OR IN CONNECTION WITH THE PERFORMANCE OF THE SOFTWARE EVEN IF BAY NETWORKS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT SHALL THE LIABILITY OF BAY NETWORKS RELATING TO THE SOFTWARE OR THIS AGREEMENT EXCEED THE PRICE PAID TO BAY NETWORKS FOR THE SOFTWARE LICENSE 5 Government Licensees This provision applies to all Software and documentation acquired directly or indirectly by or on behalf of the United States Government The Software and documentation are commercial products licensed on the open market at market prices and were developed entirely at private expense and without the use of any U S Government funds The license to the U S Government is granted only with restricted rights and use duplication or disclosure by the U S Government is subject to the restrictions set forth in subparagraph c 1 of the Commercial Computer Software Restricted Rights clause of FAR 52 227 19 and the limitations set out in this license for civilian agencies and subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause of DFARS 252 227 7013 for agencies of the Department of Defense or their successors whichever is applicable 6 Use of Software in the European Community This provision applies to all S
34. Licensee assumes all responsibility for selection of the Software to achieve Licensee s intended results and for the installation use and results obtained from the Software Bay Networks does not warrant a that the functions contained in the software will meet the Licensee s requirements b that the Software will operate in the hardware or software combinations that the Licensee may select c that the operation of the Software will be uninterrupted or error free or d that all defects in the operation of the Software will be corrected Bay Networks is not obligated to remedy any Software defect that cannot be reproduced with the latest Software release These warranties do not apply to the Software if it has been i altered except by Bay Networks or in accordance with its instructions ii used in conjunction with another vendor s product resulting in the defect or iii damaged by improper environment abuse misuse accident or negligence THE FOREGOING WARRANTIES AND LIMITATIONS ARE EXCLUSIVE REMEDIES AND ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING WITHOUT LIMITATION ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Licensee is responsible for the security of 117376 C Rev 00 iii its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files data or programs 4 Limitation of liability IN NO EVENT WILL BAY NETWORKS OR ITS
35. Manager To enable data compression Site Manager Procedure You do this 1 In the Configuration Manager window click on a port configured for frame relay System responds The Edit Connector window opens 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Services The Frame Relay Service List window opens 4 Click on PVCs The FR PVC List for Service window opens 5 Set the Compression Control parameter to Enable See Help or the parameter description on page A 31 6 Edit other parameters if you want and click on Apply 7 Click on Done You return to the main Configuration Manager window 117376 C Rev 00 3 33 Configuring Frame Relay Services Grouping Service Records for Multiline Mode Using Site Manager you can configure two or more service records to run in multiline mode for information about Bay Networks proprietary implementation of multiline see page 2 35 Service records that you group for multiline must Reside on two separate physical ports Have the same DLCI numbers Not use hybrid mode To configure multiline mode Site Manager Procedure You do this 1 Click on the Protocols menu in the Configuration Manager menu bar System responds The Protocols menu opens 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window
36. PARAMETER GO XOFF Configuration Manager gt Edit Circuit gt Interfaces gt Interfaces Enable Enable Disable Enables or disables frame relay service on this port To disable on this interface without deleting it set to Disable To reenable if you previously disabled it set to Enable 1 3 6 1 4 1 18 3 5 9 9 1 1 117376 C Rev 00 Appendix B RIP Management for Frame Relay SVCs IP and IPX use RIP to inform network entities of routing topology changes Both IP and IPX allow various controls over the frequency and destination of these packets Because RIP packets can affect whether and how the router establishes and disconnects frame relay SVCs these controls extend to frame relay SVCs Table B 1 lists the IP IPX and frame relay configuration attributes that affect frame relay SVCs and how they interact For more information about configuring RIP see Configuring IP Services and Configuring IPX Services 117376 C Rev 00 B 1 00 eH O 9ZEZLI eg Table B 1 RIP Parameters IP or IPX RIP Frame Relay Frame Relay IP or IPX SVC Broadcast SVC Inactivity Inactivity Timer Inactivity Timer RIP Enable Enable Timer Mode RIP Timer RIP Timer Functionality Functionality Enabled Enabled Both Inactivity gt When the RIP timer RIP packets will refresh Directions RIP expires the transmit inactivity RIP packets will be sent timer any connected ovar Tonnacipd Ns SVCs will never discon A
37. Quality of Service Quality of Service QoS is the second major component of Bay Networks traffic shaping It uses protocol prioritization with traffic shaping You configure a prioritization filter on the default service record for the entire frame relay interface and CIR enforcement per virtual circuit VC QoS operates over Synchronous HSSI T1 E1 and ISDN lines for backup demand and for leased lines Although the HSSI driver does not support protocol prioritization VCs on an HSSI interface do Using protocol prioritization with traffic shaping creates two levels of queues For traffic shaping the queues are high normal low at the VC level For protocol prioritization they are interrupt shaping high normal low at the driver level Figure 2 10 illustrates this concept 117376 C Rev 00 2 25 Configuring Frame Relay Services Shaped VC1 Shaped VC2 SNA Telnet IPX SNA IPX FTP High Normal Low Normal Low SNA 2E IP nd LMI Shaping High Normal Low Interrupt Transmit queue Attached media Figure 2 10 Traffic Shaping Queues Normal VCs FROOI4A 2 26 117376 C Rev 00 Frame Relay Overview All traffic that goes to a traffic shaped VC VC1 or VC2 is queued as high normal or low priority at the VC level and then it travels by priority order to a shaping queue within the driver Normal VC traffic is queued as high normal or low priority at the driver level At the driver level
38. Rev 00 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Congestion Timer Configuration Manager select a connector gt Edit Connector window gt Edit Circuit gt Services gt Frame Relay Service List window gt SVCs gt Add 1 0 5 to 5 seconds in 0 5 second intervals Specifies the length of time in seconds during which the router counts congestion notifications If the router receives the number of congestion notifications set by the congestion counter parameter the router stops transmitting data The router resumes transmission once it stops receiving congestion notifications Set the length of time the router should count congestion notifications from the network If you set this parameter for a long time period the router may be less likely to stop transmission for an intermittent congestion condition However the router may be slow to detect congestion resulting in long transmission delays once the congestion has cleared 1 3 6 1 4 1 18 3 5 9 9 10 1 29 Congestion Counter Configuration Manager select a connector gt Edit Connector window gt Edit Circuit gt Services gt Frame Relay Service List window gt SVCs gt Add 20 1 to 500 notifications Indicates the maximum number of congestion notifications that the router can receive during the conges
39. SVCs You can use the BCC or Site Manager to set data compression for SVCs Using the BCC The default option for the wcp control command is enabled To disable compression for this VC 1 Navigate to the prompt for the SVC that you want to edit For example box serial 1 2 frame relay 1 2 svc options toronto 2 Enter the wcp control command and the value disabled For example the following command line disable compression for this VC svc options toronto wcp control disabled svc options toronto Using Site Manager To use data compression with frame relay SVCs first select WCP from the Protocols menu Compression is enabled by default for individual SVCs so you do not have to set this WCP Enable parameter to use compression For information on setting WCP parameters see Configuring Data Compression Services 3 70 117376 C Rev 00 To disable compression Customizing Frame Relay Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar Click on Frame Relay The Protocols menu opens The Frame Relay menu opens Click on Services The Frame Relay Service List window opens Choose the service record that you want to configure for compression Click on the SVCs button The Frame Relay Options List for Service window opens Choose the SVC option record that has values in the following
40. accept the default Include Choose Exclude to disallow them 1 3 6 1 4 1 18 3 5 9 9 5 1 24 A 38 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters SVC Inactivity Timer Configuration Manager gt Protocols gt Frame Relay gt Services 60 0 to 2147483647 seconds Specifies the amount of time in seconds before the SVC terminates because no data has travelled over the circuit in the direction you specify in the Inactivity Mode parameter If you want to set the timer to one minute accept the default Otherwise specify another value within the allowable range 1 3 6 1 4 1 18 3 5 9 9 5 1 25 SVC Inactivity Mode Configuration Manager gt Protocols gt Frame Relay gt Services Both Directions Both Directions Transmit Only Receive Only Either Direction Specifies the direction of traffic the Inactivity Timer monitors in determining whether to keep an SVC up or to terminate it Transmit Only the transmit timer expires Receive Only the receive timer expires Both Directions both the transmit AND the receive timers expire Either Direction either the transmit OR the receive timer expires To monitor in both directions accept the default Otherwise choose one of the other options 1 3 6 1 4 1 18 3 5 9 9 5 1 26 e o o o 117376 C Rev 0
41. address type q921 frame relay 1 2 Address Length To specify the address length 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 Enter the address length command and the value you want the network to use address length lt nteger gt lt integer gt is a value of 2 3 or 4 bytes 117376 C Rev 00 3 5 Configuring Frame Relay Services For example the following command line sets the address length to 4 bytes frame relay 1 2 address length 4 frame relay 1 2 Using Site Manager Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Edit Connector window opens click on a port configured for frame relay 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Interfaces The Frame Relay Interfaces window opens 4 Setthe following parameters using Help or the parameter descriptions on page A 6 Address Address Length 5 Edit other parameters if you want and click on Apply 6 Click on Done You return to the main Configuration Manager window Monitoring the Connection You can monitor the status of your frame relay network connection by setting Time intervals for the router to send messages that verify the integrity of the link The number and frequency of error messages that can occur before the connection terminates 3 6 117376 C Rev 00
42. and initiate link setup Passive indicates that LAPF takes no action to initiate link setup The default is active For example the following command line sets an initiation mode of passive lapf 3 2 initiation mode passive lapf 3 24 Retransmission Timer Retransmission timer is the general purpose retransmission timeout It is used during initiation of LAPF multiple frame support and for timeout of LAPF numbered information frames In the event of a timeout the sending platform retransmits the frame up to the maximum number of times you specify for retransmission limit To set the retransmission timer 1 Navigate to the LAPF prompt For example box serial 1 2 frame relay 1 2 lapf 1 2 3 46 117376 C Rev 00 Customizing Frame Relay 2 Enter the retransmission timer command and the value you want to use retransmission timer integer integer is the length of time that the router waits to receive an acknowledgment Legal values are 1 to 1200 tenths of a second The default is 15 For example the following command line sets a timer of 30 tenths of a second 3 seconds lapf 3 2 retransmission timer 30 lapf 3 24 Idle Timer Idle timer indicates the amount of time that the router allows with no data being transmitted In the event of a timeout the router initiates a frame handshake to check if the connection is still up To set the idle timer 1 Navigate to the LAPF prompt For example box
43. burst plus the committed burst must be less than or equal to the line speed To change the value for excess burst in or excess burst out 1 Navigate to the prompt for the SVC that you want to edit For example serial 1 2 frame relay 1 2 service 8 0 32 svc options toronto 2 Enter the excess burst in or excess burst out command and the integer value you want the SVC to use excess burst in integer Or excess burst out integer integer is the number of bits the router can transmit per time interval Legal values are 0 to 2 147 483 647 bits The default is 0 For example the following command line sets a excess burst in value of 3 000 bits svc option tronto excess burst in 3000 svc option tronto CIR Throughput The CIR committed information rate or throughput defines the number of bits per second your carrier guarantees the router can transmit over a specified time interval when there is no congestion For SVCs you configure four attributes that define throughput cir in cir in minimum cir out and cir out minimum 3 66 117376 C Rev 00 Customizing Frame Relay The cir in and cir out attributes specify the requested incoming and outgoing throughput kbits second when no congestion is occurring The cir in minimum and cir out minimum attributes specify the minimum acceptable incoming and outgoing throughput kbits second To change the value of the cir in or cir out attributes 1 Navig
44. command enables you to block certain type of calls on the SVC Legal values are both none inbound outbound all To set SVC call block direction 1 Navigate to the service prompt For example box serial 1 2 frame relay 1 2 service 8 0 32 2 Enter the svc call block direction command and one of these options For example the following command line sets a call block direction of outbound service 8 0 32 svc call block direction outbound service 8 0 32 SVC Screening The svc screen control command enables you screen incoming calls on this service record Legal values are enabled and disabled The default is disabled To set SVC screen usage 1 Navigate to the service prompt For example box serial 1 2 frame relay 1 2 service 8 0 32 2 Enter the svc screen control command and set it to enabled For example the following command line enables call screening service 8 0 32 svc screen control enabled service 8 0 32 117376 C Rev 00 3 39 Configuring Frame Relay Services SVC Screen Usage The svc screen usage command enables you to allow or disallow calls from numbers in associated SVC option records Legal values are include which allows these calls and exclude which disallows them The default is include To set SVC screen usage Enter the svc screen usage command and set it to include or exclude For example the following command line disallows calls from numbers in 1 Navigate to the
45. delete service lt servicename gt For example the following command line deletes a service record with the name of dallas frame relay 1 2 delete service dallas frame relay 1 2 117376 C Rev 00 3 13 Configuring Frame Relay Services Using Site Manager Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a port configured for frame relay The Edit Connector window opens Click on Edit Circuit The Frame Relay Circuit Definition window opens Click on Services The Frame Relay Service List window opens 4 Click on the service record entry 5 Click on Delete Site Manager removes the service record entry from the Frame Relay Service List window Adding PVCs to Service Records You can use either the BCC or Site Manager to add PVCs to already existing service records Using the BCC You can add one or more PVCs at a time To add one PVC 1 Navigate to the service record to which you want to add PVCs For example box serial 1 2 frame relay 1 2 service boston Enter the pvc command and a DLCI number in this format pvc DLCI number For example the following command line creates a PVC with a DLCI of 20 service boston pvc 20 pvc 3 2 20 117376 C Rev 00 To add more than one PVC Customizing Frame Relay Navigate to the service record to which you want to add PVCs f
46. do this System responds 1 In the Configuration Manager window click on a port configured for frame relay The Edit Connector window opens 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Interfaces The Frame Relay Interfaces window opens 4 Set the Multicast parameter to Enable See Help or the parameter description on page A 9 5 Edit other parameters if you want and click on Apply 6 Click on Done You return to the main Configuration Manager window 7 Inthe Configuration Manager window The Edit Connector window opens click on a port configured for frame relay 8 Click on Edit Circuit The Frame Relay Circuit Definition window opens 9 Click on Services The Frame Relay Service List window opens 10 Click on PVCs The FR PVC List for Service window opens 11 Set the Multicast parameter to Multicast See Help or the parameter description on page A 27 117376 C Rev 00 3 19 Configuring Frame Relay Services Site Manager Procedure continued You do this System responds 12 Edit other parameters if you want and click on Apply 13 Click on Done You return to the main Configuration Manager window Configuring Hybrid Mode for PVCs Hybrid mode allows you to use the same PVCs for both routing and bridging You configure hybrid mode using Site Manager to set the Hybrid Mode parameter to ON T
47. e Interrupt priority traffic DLCMI LMI requests the LMI box in Figure 2 10 has the highest priority You cannot change this Shaped priority traffic the Shaping box in Figure 2 10 has the second highest priority e Normal VC traffic not shaped has lower priority than shaped traffic You can still prioritize normal VC traffic as high normal or low Queuing and prioritization only matter when the traffic rate exceeds the VC line rate or the CIR If the total of all traffic is below the CIR the router just transmits it You cannot prioritize between VCs on which you have enabled traffic shaping The router schedules traffic among them in a round robin manner For information about configuring filters for protocol prioritization see Configuring Traffic Filters and Protocol Prioritization Traffic Shaping for SVCs Requesting Traffic shaping for SVCs works according to the descriptions in the previous topics except that SVCs derive the committed burst excess burst and throughput values from a combination of the traffic shaping attributes and parameters that you configure and values that the frame relay network imposes The network values are called ink layer core LL Core values Quality of Service for SVCs When you configure traffic shaping for an SVC you have several alternatives to achieve the QoS that will best serve your network e You can set the SVC Traffic Shaping Disable attribute or parameter to Enable wi
48. in local remote or dynamic mode For information on these procedures see the Quick Start Routers Starting Frame Relay You can use either the BCC or Site Manager to start frame relay using default values for all parameters Frame relay will automatically find out about PVCs from the frame relay switch and will place the PVCs into the default service Using the BCC To enable frame relay 1 Configure a physical interface on an available slot connector To configure a physical interface on a slot and connector navigate to the top level box prompt and enter interface type slot slot number module module number connector connector number interface type is the name of a link or net module on the router slot number is the number of the slot on which the link module is located module number is the number of the module on which the slot is located connector number is the number of a connector on the link module After you configure a physical interface the BCC returns a prompt that specifies your current working location For example the following command configures a serial interface on slot 1 connector 2 box serial slot 1 connector 2 serial 1 2 1 2 117376 C Rev 00 Starting Frame Relay 2 Configure a frame relay interface on the physical interface To configure a frame relay interface on a physical interface navigate to the prompt for the physical interface for example box
49. lower than packet size set the B to 1 3 or even 1 2 of the CIR For example a typical TFTP frame is 548 bytes If the CIR is 16 000 bits the B configured according to the 1 4 guideline would be 4 000 bits or 500 bytes which is not big enough to accommodate a TFTP frame If you set the B to 16 000 2 or 1 2 CIR the result is 8 000 bits or a packet size of 1 000 bytes which works but may result in excessive queuing because the T is 1 2 second If you set the B to 16 000 3 or 1 3 of CIR the result is a B of 5 333 bits or 666 bytes much closer to the 548 TFTP frame size If you cannot predict the typical frame size monitor frame relay shaping statistics for numbers of large frames and dropped frames If either of these numbers is increasing constantly or dramatically adjust the B to a higher value in small increments WCP and CIR Enforcement Consider the following when you are determining the best configuration for your network Data compression maximizes throughput and increases reliability Traffic shaping increases reliability controls congestion and prioritizes traffic Compression and traffic shaping together maximize reliability but at the expense of throughput 2 30 117376 C Rev 00 Frame Relay Overview Using Traffic Shaping with Data Compression Traffic shaping occurs at the VC level compression at the driver level Shaping therefore occurs before compression which compromises effective compre
50. no need to change this value 1 3 6 1 4 1 18 3 5 9 9 10 1 34 Remote Party Number Configuration Manager select a connector Edit Connector window Edit Circuit Services Frame Relay Service List window SVCs Add None Any display string Specifies the outbound called party number which is also the inbound calling party number Enter the number 1 3 6 1 4 1 18 3 5 9 9 10 1 7 Remote Party Sub Address Configuration Manager select a connector Edit Connector window Edit Circuit Services Frame Relay Service List window SVCs Add None Any display string The outbound called party sub address which is also the inbound calling party sub address Enter the number 1 3 6 1 4 1 18 3 5 9 9 10 1 8 117376 C Rev 00 A 41 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Remote Party Number Plan Configuration Manager select a connector gt Edit Connector window gt Edit Circuit gt Services gt Frame Relay Service List window gt SVCs gt Add X 121 E 164 X 121 Specifies whether the remote SVC uses the E 164 or X 121 number plan for addresses Choose the numbering plan that applies to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 9 Remote Party Type of Number Configuration Manager select a connector Edit Connector window
51. opens 4 Click on the Multiline button The Services Multiline With window opens 5 Click on the Add button The Add Multiline Services window opens 6 Choose the frame relay interface you want The frame relay interface entry becomes to configure for multiline highlighted 7 Click on Select The Add Multiline Services window closes Site Manager moves the record of the frame relay interface from the Add Multiline Services window to the Services Multiline With window 8 Set the Multiline Algorithm to Choose Line parameter Use Help or see the parameter description on page A 34 9 Click on Apply 10 Click on Done You return to the Frame Relay Service List window 3 34 117376 C Rev 00 Customizing Frame Relay Removing Multiline Services To remove multiline services Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Click on the Multiline button The Services Multiline With window opens 5 Choose the frame relay interface you want The frame relay interface becomes to remove in the Services Multiline With highlighted window 6 Click on the Remove button Site Manager removes the record of the frame relay interface from the Services Multiline W
52. parameters that match the remote end of the SVC connection Remote Party Number Remote Party SubAddress optional Remote Party Number Plan Remote Party Type of Number Set the WCP Enable parameter to Disable 8 Click on Apply 9 Click on Done You return to the Frame Relay Service List window 10 Click on Done You return to the main Configuration Manager window Setting X 213 Priorities for SVCs Some frame relay networks can prioritize SVC data and connection characteristics by setting X 213 priority attributes or parameters While you configure them at the router it is the network that uses these values You can use either the BCC or Site Manager to set X 213 priorities for SVCs 117376 C Rev 00 3 71 Configuring Frame Relay Services Using the BCC The X 213 priority commands adhere to ITU T Q 933 and X 213 They are data priority data priority minimum gain priority gain priority minimum keep priority and keep priority minimum If your network does not support X 213 prioritization accept the default values for these commands unless the network is able to accept pieces of signaling information that it does not recognize The data priority commands sets the priority of data on the network connection It is a value the router requests it is not guaranteed The data priority minimum command sets the lowest acceptable priority of data on a connection The gain
53. per virtual circuit 117376 C Rev 00 2 23 Configuring Frame Relay Services CIR of 0 You can contract with a carrier for a CIR of 0 which yields best effort service at low cost The carrier transmits data but does not commit to providing a specified throughput To configure a CIR of 0 set both the Throughput attribute or parameter which is the CIR and the Committed Burst B attribute or parameter to 0 and set the Excess Burst B attribute or parameter to a value greater than 0 For more information on burst rates see Committed Burst Rate and Excess Burst Rate on page 2 24 Maximum CIR The maximum CIR should not be greater than the speed of the access line on the slower end of a virtual circuit In a big pipe little pipe topology illustrated in Figure 2 8 likely CIRs at the remote sites would be 32 Kb s 56 Kb s or 64 Kb s If you configure CIRs for these virtual circuits at the central site you can use CIR enforcement described in the next topic to prevent the big pipe from sending traffic that exceeds the PVC CIRs CIR Enforcement CIR enforcement means restricting the speed of outbound traffic to a rate no faster than the CIR It is the major component of traffic shaping You can configure CIR enforcement to operate over Synchronous High Speed Serial Interface HSSI T1 E1 and Integrated Services Digital Network ISDN lines for frame relay backup demand bandwidth on demand and leased lines at the
54. rere rr 2 29 Inactivity Timer and Inactivity Timer Mode Interaction 2 34 Synchronous Line Parameters for Frame Relay sss 2 39 FUP Parise icin pr b ER po c aped Loup e pna aa B 2 Frame Relay Show Commands bicis A T ETT C 2 xiii About This Guide If you are responsible for configuring frame relay you need to read this guide If you want to information that is in Site Manager online Help Go to Start frame relay on a router with default settings for interface Chapter 1 parameters Learn about the frame relay protocol including special aspects of the Chapter 2 Bay Networks implementation of frame relay Change default settings for frame relay parameters Chapter 3 Get information about Site Manager parameters this is the same Appendix A Before You Begin Before configuring frame relay services guide with a new router you must complete the following procedures e nstall the router see the installation guide that came with your router e Connect the router to the network and create a pilot configuration file see Quick Starting Routers Configuring BayStack Remote Access or Connecting ASN Routers to a Network Make sure that you are running the latest version of Bay Networks Site Manager and router software If you need to upgrade see Upgrading Routers from Version 7 1 I xx to Version 12 00 117376 C Rev 0
55. service prompt For example box serial 1 2 frame relay 1 2 service 8 0 32 2 associated SVC option records service 8 0 324 svc screen usage exclude service 8 0 324 Using Site Manager To configure call block and screening for a frame relay service record Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens Click on Frame Relay The Frame Relay menu opens 3 Click on Services Set the following parameters using Help or the parameter descriptions that begin on page A 38 SVC Call Block SVC InScreening Disable e SVC InScreening Usage The Frame Relay Service List window opens 5 Click on Apply 6 Click on Done 3 40 117376 C Rev 00 Customizing Frame Relay Adding SVC Options to Service Records You can use either the BCC or Site Manager to add SVC options to service records Using the BCC To add SVC options 1 Navigate to the service record to which you want to add SVCs For example box serial 3 2 frame relay 3 2 service 8 0 32 2 Enter the svc options command and a name for the SVC in the format svc options lt name gt For example the following command line adds the SVC Toronto service 8 0 32 svc options Toronto service 8 0 32 Using Site Manager To add SVCs to already existing service records Site Manager Procedure
56. specify a local address in X 121 or E 164 format myservice 8 0 32 svc local address e164 1234567 1234567 International myservice 8 0 32 svc local address e164 1234567 1234567 Unknown myservice 8 0 324 svc local address x121 1234567 1234567 International myservice 8 0 32 svc local address e164 1234567 1234567 Unknown myservice 8 0 32 3 36 117376 C Rev 00 Customizing Frame Relay Using Site Manager To add service records to a frame relay interface Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Click on Add The Frame Relay Service Add window opens 5 Set the SVC Support parameter to The SVC parameters become available Enable Use Help or the parameter description on page A 36 6 Set the following SVC parameters Use Help or the parameter descriptions that begin on page A 36 SVC Local Party Number SVC Local Party SubAddress optional SVC Local Party Number Plan SVC Local Party Type of Number 7 Click on Apply The SVC button replaces the Multiline button in the Frame Relay Service List window 8 Click on Done Deleting Service Records for SVCs You can use either the BCC or Site Manager to delete service record
57. that may pertain to or accompany the delivery of this computer software the rights of the United States Government regarding its use reproduction and disclosure are as set forth in the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 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 may be 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 acknowledge 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
58. the inactivity direction attribute Legal timer values are 0 to 2147483647 seconds The default is 60 seconds For example the following command line sets the inactivity timer to 90 seconds service 8 0 32 inactivity timer 90 service 8 0 324 Enter the inactivity direction command with the value you want to use inactivity direction value Legal direction values are both outbound inbound either For example the following command line sets the inactivity direction to outbound 3 56 117376 C Rev 00 Customizing Frame Relay service 8 0 32 svc inactivity direction outbound service 8 0 32 Using Site Manager To set inactivity values for a service record Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens Click on Frame Relay The Frame Relay menu opens Click on Services The Frame Relay Service List window opens Choose the service record for which you want to configure inactivity values Set the following parameters using Help or the parameter descriptions that begin on page A 44 Inactivity Timer Inactivity Mode Timer Click on Apply Click on Done Click on Done To set the inactivity timer value and mode for a particular SVC Site Manager Procedure You do this System responds 1 Click on the Protoc
59. the PVC to use excess burst integer integer is the number of bits the router can transmit per time interval Legal values are 0 to 2 147 483 647 bits The default is 0 For example the following command line sets an excess burst value of 2 000 bits pvc 1 2 51 committed burst 2000 pvc 1 2 514 CIR Throughput The CIR committed information rate defines the number of bits per second your carrier guarantees the router can transmit over a specified time interval when there is no congestion Your carrier supplies this value 1 Navigate to the prompt for the PVC that you want to edit For example box serial 1 2 frame relay 1 2 newyork pvc 1 2 51 Enter the cir command and the value you want the PVC to use cir integer integer is the number of bits the router can transmit per time interval Legal values are 0 to 2 147 483 647 bits The default is 0 117376 C Rev 00 3 31 Configuring Frame Relay Services For example the following command line sets a CIR value of 5 000 bits pvc 1 2 51 committed burst 5000 pvc 1 2 51 Using Site Manager To enable traffic shaping Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a port configured for frame relay The Edit Connector window opens Click on Edit Circuit The Frame Relay Circuit Definition window opens Click on Services The Frame Relay Service List w
60. the operation design performance or implementation of the Software and user manuals that is confidential to Bay Networks and its licensors however Licensee may grant permission to its consultants subcontractors and agents to use the Software at Licensee s facility provided they have agreed to use the Software only in accordance with the terms of this license 3 Limited warranty Bay Networks warrants each item of Software as delivered by Bay Networks and properly installed and operated on Bay Networks hardware or other equipment it is originally licensed for to function substantially as described in its accompanying user manual during its warranty period which begins on the date Software is first shipped to Licensee If any item of Software fails to so function during its warranty period as the sole remedy Bay Networks will at its discretion provide a suitable fix patch or workaround for the problem that may be included in a future Software release Bay Networks further warrants to Licensee that the media on which the Software is provided will be free from defects in materials and workmanship under normal use for a period of 90 days from the date Software is first shipped to Licensee Bay Networks will replace defective media at no charge if it is returned to Bay Networks during the warranty period along with proof of the date of shipment This warranty does not apply if the media has been damaged as a result of accident misuse or abuse The
61. window opens Choose the service record that includes the SVC that you want to configure for traffic shaping Click on the SVCs button The Frame Relay SVC Options List for Service window opens Choose the SVC option record that has values in the following parameters that match the remote end of the SVC connection Use Help or the parameter descriptions that begin on page A 41 Remote Party Number Remote Party SubAddress optional Remote Party Number Plan Remote Party Type of Number Set the Traffic Shaping Disable parameter to Enable To define traffic shaping values for this SVC edit the following parameters Use Help or the parameter descriptions that begin on page A 48 LL Core Out Throughput CIR LL Core In Throughput CIR LL Core Min Out Throughput LL Core Min In Throughput LL Core Out Committed Burst LL Core In Committed Burst LL Core Out Excess Burst LL Core In Excess Burst Traffic Shaping Disable Click on Apply 117376 C Rev 00 3 69 Configuring Frame Relay Services Site Manager Procedure continued You do this 10 Click on Done System responds You return to the Frame Relay SVC Options List window 11 When you are finished click on Done 12 Click on Done You return to the Frame Relay Service List window You return to the main Configuration Manager window Using Data Compression with
62. you want to run on this interface 117376 C Rev 00 1 5 Configuring Frame Relay Services Configuring PVCs and SVCs You configure permanent virtual circuits PVCs and switched virtual circuits SVCs after you enable frame relay Configuring a PVC You can configure PVCs using either the default service record or by adding a service record Use these instuctions to configure PVCs on the default service record To configure PVCs on service records that you add see Adding PVCs to Service Records on page 3 14 Using the BCC To add a PVC to the default service record 1 Navigate to the frame relay prompt For example box frame relay 1 2 Navigate to the default service prompt The BCC context changes to the default service record For example frame relay 1 24 default service default service 1 21 Enter the pvc dlci value command The service provider supplies the data link connection identifier DLCI which uniquely identifies this PVC See Help or the DLCI Number parameter in Appendix A for more information For example default service 1 24 pvc dlci 16 pvc 1 2 16 You have added a PVC to the default service record Repeat this procedure to add more PVCs according to the requirements of your network 117376 C Rev 00 Starting Frame Relay Using Site Manager To configure a PVC Site Manager Procedure You do this System responds 1 Click on the Protocols menu in t
63. 0 A 39 Configuring Frame Relay Services SVC Options Parameters You can edit SVC Options parameters in the Frame Relay SVC Options Add window Figure A 11 Cancel e 4 Yalues Help Options Name 202101 0 1 2 Remote Party Sub Address Remote Party Number Plan X 121 Remote Party Type of Number INTERNATIONAL Figure A 11 Frame Relay SVC Options Add Window To access the Frame Relay SVC Options window Site Manager Procedure You do this 1 Click on the Protocols menu in the Configuration Manager menu bar System responds The Protocols menu opens 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Click on SVCs The Frame Relay Options List for Service window opens 5 Click on Add The Frame Relay SVC Options Add window opens A 40 117376 C Rev 00 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 Options Name Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs gt Add None line number gt 0 lt circuit number Identifies the options record Site Manager assigns a unique name in the format given There is
64. 0 XV Configuring Frame Relay Services Conventions bold text brackets italic text quotation marks Screen text separator gt vertical line l 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 Indicate optional elements You can choose none one or all of the options Indicates variable values in command syntax descriptions new terms file and directory names and book titles Indicate the title of a chapter or section within a book 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 xvi 117376 C Rev 00 Acronyms ANSI ARP ATM B B BECN BofL CCITT c C R CIR CRC DCE DE DLCI DLCMI DTE EA
65. 1 4 1 18 3 5 9 9 2 1 29 117376 C Rev 00 A 31 Configuring Frame Relay Services Optional Algorithm Parameter for Each Multiline Configuration The Services Multiline With window Figure A 8 contains the Multiline Algorithm to Choose Line parameter jo Services Multi lined with 20410207 FR Slot 4 COM3 Cct 7 Default Done FR Slot 3 T1 1 Cct 7 Default Add Remove Apply Values Help LI a Multi line Algorithm To Choose Line RANDOM I Figure A 8 Services Multiline With Window To access the Services Multiline With window Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Click on the Multiline button The Services Multi line with window opens A 32 117376 C Rev 00 Site Manager Parameters This window lets you e Specify how a multiline circuit distributes traffic by setting the Multiline Algorithm to Choose Line parameter e Add multiline services to a circuit Click on Add to open the Add Multiline Services window Figure A 9 Next click on a circuit entry and click on Select When you do this the circuit entry moves from the Add Multiline Services window to the Services Multiline With window indicating tha
66. 1 7 SVC Support Configuration Manager gt Protocols gt Frame Relay gt Services Disable Enable Disable Enables or disables support for SVCs on this interface If you do not want to support SVCs on this interface accept the default Disable If you do want to configure SVCs choose Enable 1 3 6 1 4 1 18 3 5 9 9 5 1 17 SVC Local Party Number Configuration Manager gt Protocols gt Frame Relay gt Services None Any display string The outbound calling part number which is also the inbound called party number Enter the number 1 3 6 1 4 1 18 3 5 9 9 5 1 18 A 36 117376 C Rev 00 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 SVC Local Party Sub Address Configuration Manager gt Protocols gt Frame Relay gt Services None Any display string The outbound calling party sub address which is also the inbound called party sub address Enter the number 1 3 6 1 4 1 18 3 5 9 9 5 1 19 SVC Local Party Number Plan Configuration Manager gt Protocols gt Frame Relay gt Services X 121 E 164 X 121 Specifies whether this SVC uses the E 164 or X 121 number plan for addresses Choose the numbering plan that applies to your network 1 3 6 1 4 1 18 3 5 9 9 5 1 20 SVC Loca
67. 10 1 31 Traffic Shaping Disable Configuration Manager select a connector Edit Connector window Edit Circuit Services Frame Relay Service List window SVCs Add Disable Enable Disable Enables or disables traffic shaping on this SVC If you do not want to use traffic shaping on this SVC accept the default Disable and do not set the LL Core parameters Touse traffic shaping and accept the QoS the network provides set this parameter to Enable and do not configure the LL Core parameters To use traffic shaping and negotiate QoS with the network set this parameter to Enable and also set the LL Core parameters To prevent the router from enforcing the CIR set this parameter to Disable and also set the LL Core parameters 1 3 6 1 4 1 18 3 5 9 9 10 1 32 117376 C Rev 00 A 53 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID WCP Enable Configuration Manager select a connector gt Edit Connector window gt Edit Circuit gt Services gt Frame Relay Service List window gt SVCs gt Add Enable Enable Disable Enables or disables compression services for this SVC Accept the default Enable to use compression on this SVC Choose Disable to disable but not delete compression services 1 3 6 1 4 1 18 3 5 9 9 10 1 33 WHERE DOES THIS
68. 117376 C Rev 00 Frame Relay Overview Frame relay assumes that networks use transmission lines with low error rates such as digital transmission media Consequently frame relay provides only basic error detection with no error recovery This minimizes the processing required for each packet allowing frame relay networks to operate at high speeds with few network delays Because frame relay performs only basic error checking end stations running upper layer protocols such as Internet Protocol IP are responsible for resending packets that did not transmit correctly the first time Permanent Virtual Circuits A permanent virtual circuit PVC is a dedicated logical path that connects two devices over a network Once configured a PVC is always available to the connected devices a PVC does not require setup before data can travel across the network nor a disconnect after Since many PVCs can coexist devices can share the bandwidth of the transmission line Switched Virtual Circuits A switched virtual circuit SVC is a logical path that is established on an as needed basis That is an SVC exists only when there is data to transfer SVCs can connect any two points on a network without the requirement that the provider preconfigure virtual circuits VCs SVCs can provide an alternative to a large network infrastructure potentially resulting in cost savings for networks with infrequent communications between sites SVCs can also prov
69. 2 addresses are included within a 2 octet field the standard allows for 3 and 4 octet address fields This is the default e The November draft of ADDR Q922 differs from ADDR Q922 in dropping the D C bit from the extended 3 and 4 byte forms The D C bit DLCI or DL Core Control Indication is always 0 e The March draft of ADDR Q922 differs from ADDR Q922 in defining an 11 bit DLCI and dropping the DE bit from the second octet of the address field e ADDR Q921 differs from ADDR Q922 MARCH 90 in that it does not use FECNs or BECNs which means that it does not provide congestion control Selecting Address Length The options for the DLCI address length are 2 3 or 4 bytes To understand the distinctions among these byte formats see the illustrations of frame relay headers in Figure 2 2 and Figure 2 3 on page 2 6 You can use either the BCC or Site Manager to configure address type and length 8 4 117376 C Rev 00 Using the BCC Customizing Frame Relay To specify address type and length Address Type To specify the address type 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 Enter the address type command and the value you want the network to use address type value The legal values are q922 march q922 november q921 q922march90 q922november90 q922 the default For example the following command line sets the address type to q921 frame relay 1 2
70. 3 is used to detect a lost connection When either end of the link is not waiting for any data it starts timer T203 If it sends or receives no frames before this timer expires the peer transitions to the timer recovery state sends either an RR or RNR message to the remote peer and starts timer T200 If timer T200 expires the connection is assumed lost and the peer transitions to the TEI assigned state To terminate multiple frame support on the circuit one peer sends a DISC message to the other The receiving peer responds with a UA message and disconnects the circuit SVC Signaling The following sections describe the signaling between a DTE and the frame relay network in which various types of messages are exchanged Table 2 3 contains a list of timers used in the signaling exchanges that occur You can use Site Manager to configure these timers to your specific requirements 117376 C Rev 00 2 11 Configuring Frame Relay Services Call Setup A frame relay SVC is established using the frame relay signaling protocol between the subscriber DTE and the network This protocol is described in the sections that follow The timers used in this process are summarized in Table 2 3 column 1 Timer contains the Site Manager parameter name Table 2 3 Network Timers Default Timer Time At First At Second Out State of Call Cause for Start Normal Stop Expiration Expiration T303 4sec Call present Outgoing setup Incom
71. 7376 C Rev 00
72. AL AND WRITTEN AGREEMENTS AND COMMUNICATIONS BETWEEN THE PARTIES PERTAINING TO THE SUBJECT MATTER OF THIS AGREEMENT NO DIFFERENT OR ADDITIONAL TERMS WILL BE ENFORCEABLE AGAINST BAY NETWORKS UNLESS BAY NETWORKS GIVES ITS EXPRESS WRITTEN CONSENT INCLUDING AN EXPRESS WAIVER OF THE TERMS OF THIS AGREEMENT iv 117376 C Rev 00 Contents About This Guide Eo DTE e gee eee eee E er ree teen ee terre ter ee arr er reer erie eer rr ere T XV ESQ UT M E casa E o m om E xvi PAC MOINS aucsveppetics bu bon Ponga tad ated ini apod aa e kar Pu ipaa n Ra aan xvii Bay Networks Technical Publications uin auiem nante keine cu dta xviii Bay Networks Customer SelipB uncos ene ucc ai candied xviii x EIECTUS xix Bay Networks Educational Services ssssssss hiset np be nete excita bre p XX Chapter 1 Starting Frame Relay Starling CoSPTIDURATEE TOOG acsi tudinis iaaea cada Sk Ra co redigere Rr d dba 1 1 wi r rins iMg Dp 1 2 Siarinj Frame Pelayo nena erii er eur eda eons labia aoa GM tu Mn e RN RD 1 2 Gomo EN POS aad SVLIB us otia Re ecuca nage D pedi tenu ns rU db uev TED ERE d UR E E bed dn D Gp ERU 1 6 Conngummg A m pae aoo ae e AEREA E E A M 1 6 Sala eTl ale EEE aE me E I E E E A E SEES 1 7 Configuring Adjacent Hosts for an SVO suss ETA T aortal Mitelebis iss tO Deleting Frame Relay ems Platform 2e OPER e PD RR ad ol dixi dd ea d 1 9 Chapter 2 Frame Relay Overview introduction to Frame Relay e
73. BCC show Commands Online Help for show Commands EEEN AET T aeai S ie C 1 Commands salu MEE o aE C 2 UN r2 meet E C 4 show frame relay stats PS TT sheet ide aN seals A T T a AT C 16 Index X 117376 C Rev 00 Figures Figure 2a Frame Relay Network scnieneni avc xn EE M Db EE VEN a REPE TuS 2 2 Figure 2 2 Frame Relay Header 2 Byte Format ccccesseccceeeeeeeceeeeeneeeeeneneees 2 6 Figure 2 3 Frame Relay Header 3 and 4 Byte Formats cccccccsssseeeeeeesteeeeeeees 2 6 Figure 2 4 Structure or the DLEMI sasirnane aaia 2 7 Figure 2 5 Frame Relay Signaling and LAPF Standards paseas PE dinein 2 8 Figure 2 6 Hybrid Mode Configuration Non Fully Meshed Network 2 17 Figure 2 7 Example of a Bridged Network sse 2 17 Figure 2 8 Big PipeiLitle Pipe TODOLOGV iiss tiesercatcosinsrdermercstsoiieraconesiersereaneracceenee 2 20 Figure 2 9 Detecting and Controlling Network Congestion ueeessse 2 22 Figure 2 10 Traffic Shaping Queues A P ee ere ere 2 26 Figure 2 11 FECNs and BEONS in Big Pipe Little Pipe Topology 2 33 Figure 2 12 Multiline Wet i uai cei aer tuntk soc ecdais asian emer Eau ote 2 35 Pug PUO Fase Tough aieo dt eder nne Aptent ation bu OR Mae VV RARE 2 38 Figure A 1 Frame Relay Interface List Window for PVCS
74. CI This command allows for the following command filters and filter arguments dici d ci Displays only frame relay VCs with the specified DLCI interface lt name gt Displays only frame relay interfaces configured on the specified interface service name Displays only frame relay VCs on the specified Service record type pvc dynamic pvc svc Displays information about only those VCs of type e pvc shows only frame relay VCs that are statically configured PVCs e dynamic pvc shows only frame relay VCs that are dynamically learned PVCs e svc shows only frame relay VCs that are SVCs state active inactive invalid Displays information about only those VCs in xoff control starting one of the following states Invalid VC is configured but the switch has not confirmed it e Active VC is usable e Inactive VC is configured but not active e xoff VCs are XOFFd e control shows only control VCs starting shows VCs that are starting 117376 C Rev 00 C 7 Configuring Frame Relay Services The output includes the following information Interface DLCI State Type Hybrid Service The interface on which the frame relay circuit resides Name of the virtual circuit associated with this interface State of the virtual circuit as follows Invalid Circuit is configured but the switch has not confirmed it e Active Circuit is usable Inactive Circu
75. Data compression WCP v v Data encryption WEP v Protocol prioritization v v Dial on demand v v Dial backup v v Congestion control v v Traffic shaping v v PVC pass through v Multiline v 2 4 117376 C Rev 00 Frame Relay Overview Frame Relay Packets Figure 2 2 illustrates the structure of a frame relay packet The packet s header field includes the following Data link connection identifier DLCT The DLCI is the virtual circuit identification number The frame relay network uses the DLCI to direct basic data flow You configure the DLCI for PVCs For SVCs the frame relay switch assigns the DLCI number on a per call basis Command response bit C R ITU T formerly CCITT standards do not use this bit Forward explicit congestion notification FECN and backward explicit congestion notification BECN The FECN and BECN indicate congestion on the network For information about how the frame relay software uses these bits see Congestion Control on page 2 22 Discard eligibility DE The DE bit allows the router to mark specific frames as low priority discard eligible before transmitting them to the frame relay network Extended address bit EA The EA bit signals whether the next byte is part of the address This bit indicates the last byte of the DLCI 117376 C Rev 00 2 5 Configuring Frame Relay Services Information data DLCI high order DLCI low order FR0002A Fi
76. E BUTS saiusininicncen ania poop ae cu oat a ape ah pS 3 65 Esos DNI qnasi E A iiis iiri Dr devin D UU ends aud ima ud pK T 3 66 emu riget EE 3 66 117376 C Rev 00 ix Bue a CUO TT 3 68 Using Data Compression with SVOs UT m ETAT TT E TT 3 70 Seting X 213 Priorities TOI SVG Gee seiebu etude erectos eia Ece Ese uec tne aped 3 71 Deleting Frane ROl E e T D DS 3 74 Appendix A Site Manager Parameters Inieraca FATANICLOS oesscsspepixrer i Faedocps Habd a DLE pat up vaa dau Ra Loon un da pda PERRA A 1 Descriptions of Interface Parameters iiis aseceecu a cuna inneni innnan Edo ce A 4 SVC LAPF Parane E NOD A 11 Svo siralid POSIBIUREDSIS c sens cx nee reer Ren nasa Gd d Rare d NN A 17 Parameters for PVCS E mie esce dd TU ERE P A 22 Comice Name Parameiot sesionin a AE Uni rhdie SURE A 22 Required DLCI Parameter for Each PVO 1 sides obe erg senatu ode tta A 24 PVC Service Record Parameters ss T seit eben A 26 Optional Algorithm Parameter for Each Multiline Configuration A 32 SVC Service Record Parameters esses enne nennen nnns A 34 SNC Ber pe Lut Paramotis nisnin a o dei eq eU A 34 ey WOON ParamelelS ausueriediraeoconi oai emerit adn a ni peda RR d SVC Options List for Service Parameters eeesssss T oeni A 43 Appendix B RIP Management for Frame Relay SVCs Appendix C Monitoring Frame Relay Using
77. FECN FRAD FTP HSSI IP IPX ISDN ITU T LAN LAPF LMI MAC MIB About This Guide American National Standards Institute Address Resolution Protocol Asynchronous Transfer Mode committed burst rate excess burst backward explicit congestion notification Breath of Life message International Telegraph and Telephone Consultative Committee now ITU T command response bit committed information rate cyclic redundancy check data communications equipment discard eligibility data link connection identifier Data Link Control Management Interface data terminal equipment extended address bit forward explicit congestion notification frame relay access devices File Transfer Protocol High Speed Serial Interface Internet Protocol Internet Packet Exchange Integrated Services Digital Network International Telecommunication Union Telecommunications formerly CCITT local area network link access procedure frame mode Local Management Interface media access control management information base 117376 C Rev 00 xvii Configuring Frame Relay Services OSI Open Systems Interconnection PRI Primary Rate Interface PVC permanent virtual circuit QoS quality of service SABME set asynchronous balanced mode extended SNA Systems Network Architecture SVC switched virtual circuit TelNet Telecommunications Network TFTP Trivial File Transfer Protocol UA unnumbered acknowledgment URL uniform resource locator VC vi
78. Interface Parameters The Frame Relay Interface List window contains the parameters for the frame relay interfaces If you have configured PVCs only you see a window similar to the one in Figure A 1 117376 C Rev 00 A 1 Configuring Frame Relay Services T vEPENEPEPEEEENENENENESESEELLLLLLLLLLLIALLLRLLELLLLLEKLLILAGI ILULLULUS S AAE FR Slot 4 COM2 Done FR Slot 4 COM3 Apply FR Slot 3 T1 1 Values Help fad 9 Enable ENABLE Mgmnt Type ANSI T1 617D Address ADDR 0922 Address Length THO BYTE Polling Interval 10 Full Enquiry Interval 6 Figure A 1 Frame Relay Interface List Window for PVCs If you have configured any SVCs you see a window similar to the one in Figure A 2 which includes buttons for LAPF and Signaling A 2 117376 C Rev 00 FR Slot 2 COM1 Site Manager Parameters Done FR Slot 2 COM3 Apply FR Slot 4 COM2 FR Slot 5 COM1 LAPF Signaling Values Help lt j Enable Mgmnt Type Address Address Length Polling Interval Full Enquiry Interval Figure A 2 ENABLE ANSI T1 617D ADDR 0922 THO BYTE 10 6 Frame Relay Interface List Window for SVCs To access the Frame Relay Interface List window Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens Click on Frame Relay The Frame Relay menu opens Click on
79. Interfaces The Frame Relay Interface List window opens 117376 C Rev 00 A 3 Configuring Frame Relay Services Descriptions of Interface Parameters Frame Relay Interface parameters are the same for PVCs and SVCs Use the descriptions that follow when you edit these parameters Parameter Enable Path Configuration Manager gt Protocols gt Frame Relay gt Interfaces Default Enable Options Enable Disable Function Enables or disables frame relay service on this port Instructions To disable frame relay service on this interface without deleting it set to Disable To reenable frame relay service if you previously disabled it set to Enable MIB Object ID 1 3 6 1 4 1 18 3 5 9 9 1 1 2 A 4 117376 C Rev 00 Site Manager Parameters Parameter Path Default Options Function Instructions MIB Object ID Mgmnt Type Configuration Manager Protocols Frame Relay Interfaces ANSI T1 617D DLCMI None Rev 1 LMI ANSI T1 617D CCITT Annex A LMI Switch Annex D Switch Annex A Switch Specifies the management protocol that the router and the frame relay network use to communicate status information Routers connected back to back also use a Management protocol to exchange status information Option for No Management DLCMI None provides no management interface between the router and the frame relay network In the absence of management support you must configure all PVC
80. 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 117376 C Rev 00 Bay Networks Inc Software License Agreement NOTICE Please carefully read this license agreement before copying or using the accompanying software or installing the hardware unit with pre enabled software each of which is referred to as Software in this Agreement BY COPYING OR USING THE SOFTWARE YOU ACCEPT ALL OF THE TERMS AND CONDITIONS OF THIS LICENSE AGREEMENT THE TERMS EXPRESSED IN THIS AGREEMENT ARE THE ONLY TERMS UNDER WHICH BAY NETWORKS WILL PERMIT YOU TO USE THE SOFTWARE If you do not accept these terms and conditions return the product unused and in the original shipping container within 30 days of purchase to obtain a credit for the full purchase price 1 License Grant Bay Networks Inc Bay Networks grants the end user of the Software Licensee a personal nonexclusive nontransferable license a to use the Software either on a single computer or if applicable on a single authorized device identified by host ID for which it was originally acquired b to copy the Software solely for backup purposes in support of authorized use of the Software and c to use and copy the associated u
81. P process If you are configuring IP or IPX for this frame relay service record see Configuring IP Services or Configuring IPX Services for instruction on configuring adjacent hosts Deleting Frame Relay from a Platform To delete frame relay from all circuits on which it is currently configured Site Manager Procedure You do this System responds 1 Choose Configuration Manager gt A window prompts Do you REALLY Protocols gt Frame Relay gt Delete want to delete Frame Relay Frame Relay 2 Click on OK The Configuration Manager window opens Frame relay is no longer operating on the platform 117376 C Rev 00 Chapter 2 Frame Relay Overview The following sections present an overview of frame relay Topic Page Introduction to Frame Relay 2 2 Permanent Virtual Circuits 2 3 Switched Virtual Circuits 2 4 PVC and SVC Comparison 2 4 Frame Relay Packets 23 Management Protocols 2 7 Frame Relay SVC Signaling and LAPF 2 8 SVC Signaling 211 Frame Relay Service Records 2 14 Frame Relay Access Modes 215 rce Routin 2 1 REC 1490 2 18 Address Resolution for PVCs 2 18 Address Resolution for SVCs 219 Traffic Control 2 20 Data Compression 2 21 Data Encryption 2 21 Protocol Prioritization 2 21 Congestion Control 2 22 Traffic Shaping 2 23 Traffic Shaping for SVCs 2 27 117376 C Re
82. Pech nib eia 3 4 Selecting a DLOI Address TYPE uisu repo endorse atc og nda D RERO 3 4 Selecting Address Length ees ee ae T mares ee Siu er 117376 C Rev 00 vii PSS TS T aa a A Address Length meh ET ET ibeebddds ORE eer TT T Ri EE Morntonng the CTI pe 3 6 melted so Mee PN MITT UE 3 7 Full Enquiry Interval T nt errr errr TT T de Error Threshold and Monitored Events 12e ierra peer e m mec Saa rci a aai TU PSMA IIGESR cs sad A A E TT dira kr edad rd ao SR T tir Editus a 3 8 a E iyeitila IMEA e M 3 9 Enor TUO NO enaa er ree a nb OR Teer RR RAV RU DAL errr Ten 3 9 Monitored Events puwa PETE E T PEET P P PAPE 3 10 Seting OF Comro sasinan a r Aaa ARA 3 11 SP elole a a 25 P rina A OT SET 3 11 Adding Service Records for PVCs Rd TET u T ere audes Delsting Service Hasords lor PVOS iion et adde Fa P D bei CER DUE 3 13 Adding PVCS fo Service Recorde iui keit tds ai EE sa ER LUN adn 3 14 Deleting Pybs from Service BOOGOIS iussisse ice tet pue tco es neiaa 3 16 Moving PVCs from One Service Record to Another sssssssssssss 3 17 Enabling Multicast ss Peper er terete tbid errr T cde 18 Configuring Hybrid Mode for PVCs 3 20 Configuring PYG Pass Through oiii eos cce tese d Kec tbe rau kn Eoi aan 3 20 Controlling Congestion for PVCs aiai P RE E T TEN bone 3 22 C
83. Resolution far PVCS scccsciasnicscsssinasientinnainndiavetnosininldsnniduniintendlbnatendgupectomediys 2 18 Address Resolution for SVOs OR TEN eens TT T ist ahs PEI 2 19 Tale I PERITUS ITUNES 2 20 Data Compre SIDE qase cantandi eb adn ke SEA Fo Dn bari tO ASAE DUE Saa 2 21 Data EnctypllBlt uices EE ette Cei itor eco R ieee 2 21 Prowel Promag icis yin P Pop Ue PO Pp Apr Ob er Op ler aS 2 21 Congestion Control rends T E meee Tm e 2 22 Taine SNADNO e L aa aE 2 23 Committed nionnaton RAE casseria sanosi anana Ss ecards 2 23 CIR of auus Tr midis botai eee Gees TOUT ara eiet paras 2 24 EPC CIPR acina 2 24 dele ell oea TET 2 24 Committed Burst Rate and Excess Burst Rate cccsceceeeeeeeeeeeeeeeeeeeeeeeeeeeees 2 24 ORDER ip T r mee 2 25 vi 117376 C Rev 00 Tamie aapna TOF SV ec TT 2 27 Requesting Quality Of Service for SVUS 1uisseneicessid iniisa iaaii npa 2 27 Refining Quality Of Service Tal SVCS aestus tree ui tee toest cus tei Puce det OR ute sah 2 28 milicie riso eR E 2 28 Setting Minimum Acceptable Throughput cccesscceeeceeeeeeeeeeeeeeeenaeeesaes 2 29 Defining INCOMING and Outgoing isses nnns 2 29 Tafe Shaping CSN AUIS ssa pacequoscku en n sa tata aber kon dx RD E EAUS ams Bleu na 2 29 CIR Configuration Guidelines Settee NS TO T TTE ere 2 30 WOP ang CIR EnTPEGBIOBUL iei iann na obli ed
84. 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 Broadcast Control Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs Enable Enable Disable Specifies whether the router includes this interface in outbound broadcasts If you want this SVC to receive outbound broadcasts accept the default Enable Otherwise choose Disable 1 3 6 1 4 1 18 3 5 9 9 10 1 11 Inactivity Timer Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 60 0 to 2147483647 seconds Amount of time in seconds before the SVC terminates because no data has travelled over the circuit in the direction you specify in the Inactivity Timer Mode parameter Accept the default or set to a value appropriate for your network 1 3 6 1 4 1 18 3 5 9 9 10 1 12 Inactivity Timer Mode Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs Transmit Only Transmit Only Receive Only Both Directions Either Direction Determines the kind of inactivity the Inactivity Timer parameter monitors Transmit Only the transmit timer expires Receive Only the receive timer expires Both Directions both the transmit AND the receive timers expire Either Direction either the transmit OR the re
85. Services Using Site Manager You can enable congestion control for the interface and you can also customize values for individual PVCs To enable congestion control for the interface Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a port configured for frame relay The Edit Connector window opens 2 Click on Edit Circuit 3 Click on Interfaces The Frame Relay Circuit Definition window opens The Frame Relay Interfaces window opens 4 Set the following parameters using Help or the parameter descriptions that begin on page A 9 Congestion Control Congestion Timer Congestion Counter Congestion Method applies only when you enable traffic shaping 5 Edit other parameters if you want and click on Apply 6 Click on Done You return to the main Configuration Manager window To customize congestion control for individual PVCs Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a port configured for frame relay The Edit Connector window opens 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Services The Frame Relay Service List window opens 3 28 117376 C Rev 00 Customizing Frame Relay Site Manager Procedure continued 4 Click on PVCs The FR PVC List for Servic
86. Setting XOFF Control You configure the router to ignore or observe the XOFF bit in LMI by using the BCC to set the XOFF control The default is enabled To set the XOFF control 1 Navigate to the dlcmi prompt For example box serial 1 2 frame relay 1 2 dlcmi Enter the xoff control command and the value you want the network to use xoff control value value can be enabled for the router to observe the XOFF bit or disabled for the router to ignore the XOFF bit For example the following command line disables XOFF control dlcmi 1 24 xoff control disabled dlcmi 1 2f Customizing PVCs Use the sections that follow for guidance in customizing PVCs to meet the requirements of your network You can use either the BCC or Site Manager to add service records for PVCs 117376 C Rev 00 Configuring Frame Relay Services Adding Service Records for PVCs Using the BCC 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 2 service lt servicename gt name of boston frame relay 1 2 service boston service boston Using Site Manager A service record is a data structure that allows flexible grouping and characterization of PVCs You can add and delete service records from your frame relay interfaces When you add a new service record it automatically creates one PVC to which you must assign a DLCI number Enter the service command and a service name in this format F
87. The committed burst rate B defines the number of bits the router can transmit over a specified time interval when congestion occurs Set this attribute to 1 4 the value of the CIR unless this VC is sending frames larger than that size in which case you should increase the value the committed burst to accommodate that frame size To change the value for the committed burst 1 Navigate to the prompt for the PVC that you want to edit For example box serial 1 2 frame relay 1 2 orlando pvc 1 2 51 Enter the committed burst command and the value you want the PVC to use committed burst integer integer is the number of bits the router can transmit per time interval Legal values are 0 to 2 147 483 647 bits The default is 0 For example the following command line sets a committed burst value of 4 000 bits pvc 1 2 51 committed burst 4000 pvc 1 2 51 3 30 117376 C Rev 00 Customizing Frame Relay Excess Burst The excess burst rate B combines with the committed burst rate to determine the maximum number of bits the router can transmit over a specified time interval when there is no congestion The excess burst plus the committed burst must be less than or equal to the line speed To change the value for the excess burst 1 Navigate to the prompt for the PVC that you want to edit For example box serial 1 2 frame relay 1 2 orlando pvc 1 2 51 Enter the excess burst command and the value you want
88. U T Q 933 Annex A e The networking industry first developed the Local Management Interface LMI specification The LMI approach is asymmetric the router sends a status inquiry message to the network signaling that the router s connection to the network is functioning The network replies with a status response e ANSI modified the LMI specification and incorporated it as Annex D to ANSI standard T1 617 The ANSI method is generally similar to the LMI approach e The CCITT now ITU T modified the ANSI standard and adopted it as Annex A to Q 933 The CCITT Annex A specification is similar to Annex D but it uses an international numbering scheme 117376 C Rev 00 2 7 Configuring Frame Relay Services Be sure to configure the frame relay interface on the router to use the same management protocol as the switched network to which it is connected For information about configuring frame relay see Chapter 3 Customizing Frame Relay Frame Relay SVC Signaling and LAPF Figure 2 5 shows the layers of protocol standards for frame relay signaling e The LAPF Core layer defines basic frame relay protocol for both PVCs and SVCs and supports the reliable transfer of multiple numbered frames over SVCs e The DLCMI layer defines link management protocol for PVCs e The LAPF and Q 933 layers define link management protocol for SVCs Q 933 or FR 4 Define link Defines link management DLCMI management protocol protocol for SVC
89. accept pieces of signaling information that it does not recognize 1 3 6 1 4 1 18 3 5 9 9 10 1 17 A 46 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters X 213 Keep Priority Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 15 0 to 15 Sets the priority of data required to maintain a connection This is a value that the router requests it is not guaranteed A value of 0 is the lowest priority with 14 as the highest A value of 15 means unspecified If your network supports X 213 prioritization you should assign a value You should accept the default if the network does not support X 213 prioritization unless the network is able to accept pieces of signaling information that it does not recognize 1 3 6 1 4 1 18 3 5 9 9 10 1 18 X 213 Keep LQA Priority Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 15 0 to 15 Sets the lowest acceptable priority of data required to maintain a connection This is a value below which the router will disconnect the SVC If your network supports X 213 prioritization you should assign a value You should accept the default if the network does not support X 213 prioritization unless the network is able to accept pieces of signaling information that it does not recognize
90. aces This command allows for the following command filter and filter argument interface name Displays only frame relay VCs configured on the specified interface The output contains the following information Interface Interface on which the VC resides Unnumbered Frame Received Number of frames received by LAPF in unnumbered format Numbered Frames Received Number of frames received by LAPF Unnumbered Frames Sent Number of frames sent by LAPF in unnumbered format Numbered Frames Sent Number of frames sent by LAPF signalling receive transmit interface lt name gt Displays receive and transmit statistics for frame relay interfaces signalling receive Displays signalling receive statistics for frame relay interfaces This command allows for the following command filter and filter argument interface name Displays only frame relay SVCs configured on the specified interface 117376 C Rev 00 C 23 Configuring Frame Relay Services The output contains the following information Interface Setup Call Proceeding Connect Disconnect Release Release Complete Status Unnumbered Frames Sent Status Enquiry Interface on which the SVC resides Indicates the number of seconds allowed from the time the router sends a setup message to the called subscriber and receives a connect or call proceeding message from the called subscriber Message sent by the called subscriber to the router or
91. agement services as specified by the ITU T formerly CCITT e LMI Switch offers limited management services for the DCE side of the connection as specified by Revision 1 of the Local Management Interface standard e Annex D Switch provides limited management services for the DCE side of the connection as specified in Annex D to ANSI standard T1 617 1991 e Annex A Switch provides limited management services for the DCE side of the connection as specified by the ITU T If you are connecting two routers back to back use one of the DTE parameter options Rev 1 LMI ANSI T1 617D CCITT Annex A for the router acting as a DTE and one of the DCE options LMI Switch Annex D Switch Annex A Switch for the router acting as the DCE Although you can configure the router for the DCE side of a connection the router cannot act as a full switch and it will not perform complete bidirectional signaling The LMI Switch Annex D Switch and Annex A Switch options are primarily for troubleshooting You can use either the BCC or Site Manager to select a management type 3 2 117376 C Rev 00 Using the BCC Customizing Frame Relay To specify a management protocol 1 Navigate to the dlcmi prompt For example box serial 1 2 frame relay 1 2 dlcmi Enter the management type command and the value you want the network to use management type value The legal values are none Imi annex d the default annex a Imi swit
92. ame Relay gt Services gt PVCs OFF ON OFF Allows you to use the same PVC for both routing and bridging If you do not want to enable both routing and bridging services accept the default OFF If you do want to enable both routing and bridging set to ON 1 3 6 1 4 1 18 3 5 9 1 2 1 24 Committed Burst Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs 0 0 to 2 147 483 647 bits The maximum number of bits that a VC can transmit during the VC s burst period Tc when congestion is occurring To enable traffic shaping this parameter and the Throughput parameter CIR must both be greater than zero The Committed Burst Bc value should be lower than the Throughput Enter a value within the given range You should set this parameter to 1 4 of the CIR unless this VC is sending frames larger than that size If the VC is sending large frames increase the value of this parameter to accommodate the size of those frames 1 3 6 1 4 1 18 3 5 9 9 2 1 16 Excess Burst Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs 0 0 to 2 147 483 647 bits This value is added to the Committed Burst value to determine the maximum number of bits that may be transmitted during the VC s burst period when there is no congestion The Excess Burst plus the Committed Burst must be less than or equal to the line speed Enter a value within the given range 1 3 6 1 4 1 18 3 5 9 9 2 1 17 A 28
93. anagement Type 3 2 Selecting Address Type and Length 4 Monitoring the Connection 3 6 Customizing PVCs 3 11 Customizing SVCs Deleting Frame Relay 3 74 Using the MIB Object ID The Technician Interface allows you to modify attributes by issuing set and commit commands with the 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 The Technician Interface does not verify attribute values you enter Entering an invalid value can corrupt your configuration 117376 C Rev 00 3 1 Configuring Frame Relay Services Selecting a Management Type You can specify the management protocol that the router and the frame relay network use to communicate status information Routers connected back to back also use a management protocol to exchange status information The following list describes your options e DLCMI None provides no management interface between the router and the frame relay network In the absence of management support you must configure all PVCs manually e Rev I LMI provides user side management services as specified by Revision 1 of the Local Management Interface standard e ANSITI1 617D provides user side management services as specified in Annex D to ANSI standard T1 617 1991 This is the default value e CCITT Annex A provides user side man
94. and D that receive a lot of traffic may be getting large numbers of FECNS while the central site router is getting relatively few data packets and therefore few BECNs and is unaware than congestion is occurring You may need to fine tune the Congestion Counter parameter and the Congestion Timer parameter see Appendix A Site Manager Parameters from the default values of 20 FECN or BECN counts per second to for example 10 counts per 5 seconds to account for the differences in traffic volume from and to the central site Flow of most traffic Remote site B p eeN S ne BECNs few o c lt pod Remote site C FECNs me eS ae TM many Central site A 7 i Bo Remote site D S rmm Se FROOISA Figure 2 11 FECNs and BECNs in Big Pipe Little Pipe Topology 117376 C Rev 00 2 33 Configuring Frame Relay Services X 213 Priority for SVCs Some frame relay networks that support SVCs can prioritize SVC data and connection characters by setting X 213 priority attribute or parameters You configure values for these attributes or parameters at the router and the frame relay network uses them For instructions on configuring X 213 parameters see Setting X 213 Priorities for SVCs on page 3 71 Inactivity Timing for SVCs The Inactivity Timer parameter and Inactivity Timer Mode parameter combine
95. annot be recovered by resending an information frame Reject REJ requests retransmission of information frames Receive not ready RNR indicates that the station is temporarily busy and not ready to receive information frames Receive ready RR indicates that the station is ready to receive information frames Exchange ID indicates the station s identification information C 20 117376 C Rev 00 lapf transmit Monitoring Frame Relay Using BCC show Commands Displays LAPF transmit statistics for frame relay interfaces This command allows for the following command filter and filter argument interface lt name gt Displays only frame relay VCs configured on the specified interface The output contains the following information Interface Window SABME UA DISC DM FRMR REJ RNR RR XID Interface on which the frame relay VC resides Number of outstanding signalling messages allowed Set Asynchronous Balanced Mode Extended SABME command that initiates multiple frame operation Unnumbered acknowledgment UA is a response sent by a station upon receipt of a SABME or DISC command Disconnect DISC is a command that initiates the release of multiple frame operation Disconnect mode DM indicates the collision of commands and responses that prevent the initiation of multiple frame operations Frame reject FRMR indicates errors encountered that cannot be recovered by resending an informa
96. arameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID N200 Max Retries Configuration Manager gt Protocols gt Interfaces gt LAPF 3 1 to 20 Indicates the maximum number of LAPF retransmissions allowed on a connection after the T200 Base Timer expires before the connection terminates Set to the value of retransmissions appropriate for your network 1 3 6 1 4 1 18 3 5 9 9 7 1 10 N201 Max Frame Size Configuration Manager gt Protocols gt Interfaces gt LAPF 260 260 to 2052 octets Indicates the maximum number of octets of data allowed in the LAPF information field The larger the number allowed the less overhead on the system However a large value could exceed the system buffer size You should accept the default value Set to the maximum size of the LAPF information field 1 3 6 1 4 1 18 3 5 9 9 7 1 11 K Max Window Size Configuration Manager gt Protocols gt Interfaces gt LAPF 7 1 to 127 Indicates the maximum number of outstanding numbered information I frames allowed across a connection These are frames that have travelled across the link but which the peer has not acknowledged Each of these frames remains in a backup queue until the peer sends an acknowledge message A longer queue adversely affects system performance You should accept the default value Set to the value appropriate for
97. arameter A 21 Technical Solutions Centers xix Technician Interface configuring buffers for traffic shaping 2 32 TEl assigned state 2 9 Throughput parameter A 29 timer recovery state 2 9 timers 2 12 LAPF timeout and retransmission 2 9 2 10 N200 retransmission 2 10 retransmission 2 10 2 11 T200 retransmission 2 10 timeout 2 10 traffic distribution for multiline 2 36 traffic shaping 3 65 Index 5 buffers 2 32 configuring committed burst 2 30 definition of 2 23 for SVCs 2 27 guidelines 2 29 monitoring statistics 2 30 oversubscribing the interface 2 32 with data compression 2 30 Traffic Shaping Disable parameter A 53 U unnumbered control frames 2 9 V virtual circuits for connections 2 2 Ww WCP Enable parameter A 54 wfFrCircuitShapedQueueLimit attribute 2 33 wfFrDlemiShapingQueueLimit attribute 2 32 windows FR PVC List for Service A 26 Frame Relay Interface List for PVCs A 2 Frame Relay PVC Add A 24 Frame Relay Service List A 23 Frame Relay Signaling Parameters A 17 Frame Relay SVC Options Add A 40 Services Multiline With A 32 X X 213 Data LQA Priority parameter A 45 X 213 Data Priority parameter A 45 X 213 Gain LQA Priority parameter A 46 X 213 Gain Priority parameter A 46 X 213 Keep LQA Priority parameter A 47 X 213 Keep Priority parameter A 47 X 213 priority 2 34 X 213 priority parameters configuring 3 71 XOFF bit setting 3 11 Index 6 11
98. ased distribution determines the data path for outbound traffic from the source and destination address in each packet Any given address pair always uses the same path The router determines whether to route or bridge the packet and then uses the corresponding level of address It uses routing level addresses for routing traffic and the MAC level addresses for bridging traffic Address based distribution ensures that all outbound traffic travels on the same path and that packets arrive in sequence For protocols that cannot receive packets out of sequence use this method Note however that this option does not always distribute traffic evenly across each line Protocol Prioritization and Multiline Incompatibility You cannot use protocol prioritization with multiline Protocol prioritization may change the order of frames arriving over a multiline interface and frame relay multiline does not have the ability to correct the sequence PVC Pass Through The PVC pass through service allows a single frame relay network access link to carry both conventional network protocol traffic and otherwise unroutable frame relay access device FRAD traffic It works with hybrid mode PVCs only PVC pass through connects two PVCs on separate interfaces so that the router can transmit traffic it receives on one PVC out the other with no encapsulation requirements Figure 2 13 illustrates how PVC pass through works 117376 C Rev 00 2 37 Configuri
99. ate to the prompt for the SVC that you want to edit For example serial 1 2 frame relay 1 2 service 8 0 32 svc options toronto Enter the cir in or cir out command and the integer value you want the SVC to use cir in integer Or cir out integer integer is the number of bits the router can transmit per time interval Legal values are 0 to 2 147 483 647 bits The default is 0 For example the following command line sets a cir in value of 10 000 bits svc option tronto cir in 10000 svc option tronto To change the value of the cir in minimum or cir out minimum attribute 1 Navigate to the prompt for the SVC that you want to edit For example serial 1 2 frame relay 1 2 service 8 0 32 svc options toronto Enter the cir in minimum or cir out minimum command and the integer value you want the SVC to use cir in minimum integer or cir out minimum lt integer gt lt integer gt is the number of bits the router can transmit per time interval Legal values are 0 to 2 147 483 647 bits The default is 0 117376 C Rev 00 3 67 Configuring Frame Relay Services For example the following command line sets a cir in minimum value of 10 000 bits svc option tronto cir in minimum 10000 svc option tronto Traffic Shaping Control To use traffic shaping for SVCs you set the traffic shaping control command to enabled but you also have these options e If you do not want to use traffic shaping
100. attribute or parameters for both incoming and outgoing directions and you can set values for incoming and outgoing minimum acceptable throughput The values you set in incoming and outgoing attribute or parameters apply to traffic depending on where the SVC call originates See Defining Incoming and Outgoing on page 2 29 to understand how the software uses these attribute or parameters Refining Traffic Shaping The attribute or parameters involved are the LL Core Out Throughput CIR LL Core Out Committed Burst LL Core Out Excess Burst LL Core In Throughput CIR LL Core In Committed Burst and LL Core In Excess Burst You can use these attribute or parameters to request values for traffic shaping that distinguish between incoming and outgoing traffic 2 28 117376 C Rev 00 Frame Relay Overview Setting Minimum Acceptable Throughput Throughput that an SVC actually uses may be less than it requests because the local router the frame relay network and the remote end of the connection negotiate QoS You can use the Outgoing and Incoming Minimum Acceptable Throughput attributes or parameters to set the lowest throughput value the router will accept If either the local router the network or the remote end cannot guarantee that value the SVC will not be established Defining Incoming and Outgoing If a local router originates the call the outgoing committed burst excess burst and throughput values define character
101. ber of VCs active on this interface Multiline Specifies whether the service record is for multiline shaping dlci lt d ci gt interface lt name gt service lt name gt Displays information about the traffic shaping configuration of all frame relay VCs This command allows for the following command filters and filter arguments dici dici Displays only frame relay VCs with the specified DLCI interface name Displays only frame relay VCs configured on the specified interface service lt name gt Displays only frame relay VCs on the specified service 117376 C Rev 00 C 9 Configuring Frame Relay Services The output includes the following information Interface The interface on which the frame relay circuit resides DLCI Name of the VC associated with this circuit CIR Committed information rate Committed Burst The maximum number of bits that the router can transmit over a specified time interval Boy Excess Burst The maximum number of extra bits the router attempts to send when there is no congestion Be Config Mode Indicates whether the circuit is configured to use traffic shaping Congestion State Status of traffic options are forwarding sending traffic at up to the maximum rate allowed on the PVC congested the PVC is not transmitting throttling the PVC is throttling back to the CIR rate congestion dlci d ci interface lt name gt service lt name gt stat
102. bute after which the call is cleared To set the status enquiry timer 1 Navigate to the signaling prompt For example box serial 1 2 frame relay 1 2 signalling 1 2 2 Enter the status enquiry timer command and the integer value you want to use statis enquiry timer integer lt integer gt is the number of seconds allowed Legal values are 2 to 90 seconds The default is 4 For example the following command line sets a timer of 30 seconds signalling 3 2 status enquiry timer 30 signalling 3 24 Status Enquiry Retry Status enquiry retry indicates the maximum number of times the router will retransmit a status inquiry message If the router sends the maximum number of status inquiry messages and receives no response the call is cleared To set the status enquiry retry attribute 1 Navigate to the signaling prompt For example box serial 1 2 frame relay 1 2 signalling 1 2 117376 C Rev 00 3 53 Configuring Frame Relay Services Enter the status enquiry retry command and the integer value you want to use status enquiry retry lt nteger gt integer is the number of retries Legal values are 1 to 20 retries The default is 4 For example the following command line sets a value of 7 retries signalling 3 2 status enquiry retry 7 signalling 3 2 Using Site Manager To edit signaling parameters Site Manager Procedure You do this System responds 1 Click on th
103. by the router to the calling subscriber to indicate the establishment of the requested call Message sent by the called subscriber to the router and by the router to the calling subscriber to indicate call acceptance by the called subscriber Message sent by the subscriber to request the router to clear an end to end connection or a message sent by the router to indicate that the end to end connection is cleared Message sent by the user or router to indicate that the sender has disconnected the call Message sent by the subscriber or the router to indicate that the sender has released the call reference Message sent by the subscriber or router in response to a status enquiry or to report error conditions Number of unnumbered acknowledgment frames UAs sent over SVCs to a subscriber or router A message sent by the subscriber or router to solicit a status message C 24 117376 C Rev 00 signalling transmit Monitoring Frame Relay Using BCC show Commands Displays signalling transmit statistics for frame relay interfaces This command allows for the following command filter and filter argument interface name Displays only SVCs configured on the specified interface The output contains the following information Interface Setup Call Proceeding Connect Disconnect Release Release Complete Status Unnumbered Frames Sent Status Enquiry Interface on which the frame relay SVC resides In
104. ceive timer expires Accept the default or choose another timer mode appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 13 A 44 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters X 213 Data Priority Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 15 0 to 15 Sets the priority of data on the network connection as defined in ITU T Q 933 and X 213 This is a value the router requests it is not guaranteed A value of 0 is the lowest priority with 14 as the highest A value of 15 means unspecified If your network supports X 213 prioritization you should assign a value You should accept the default if the network does not support X 213 prioritization unless the network is able to accept pieces of signaling information that it does not recognize 1 3 6 1 4 1 18 3 5 9 9 10 1 14 X 213 Data LQA Priority Configuration Manager Protocols Frame Relay Services SVCs 15 0 to 15 Sets the lowest acceptable priority of data on a connection A value of 0 is the lowest priority with 14 as the highest A value of 15 means unspecified If your network supports X 213 prioritization you should assign a value You should accept the default if the network does not support X 213 prioritization unless the network is able to accept pi
105. ces Cancel OK Values Help Enable ENABLE Station Type USER SIDE Action Initiate ACTIYE T200 Base Timer 15 T203 Idle Timer N200 Max Retries N201 Max Frame Size K Max Window Size Figure A 3 FR LAPF Parameters Window To access the FR LAPF Parameters window Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar Click on Frame Relay The Frame Relay menu opens Click on Interfaces The Frame Relay Interface List window opens 4 Click on the LAPF button The Frame Relay LAPF Parameters window opens A 12 117376 C Rev 00 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 Interfaces gt LAPF Enable Enable Disable Enables or disables LAPF on this interface To disable LAPF on this interface set to Disable To enable LAPF accept the default Enable 1 3 6 1 4 1 18 3 5 9 9 7 1 2 Station Type Configuration Manager Protocols Interfaces LAPF User Side Network Side User Side Identifies the desired station type of this interface Network Side indicates that LAPF will act as the data communications equipment User Side indicates that LAPF will act as the data
106. ch annex d switch annex a switch For example the following command line changes the management type from Annex D Switch to LMI Switch dlcmi 1 24 management type lmi switch dlcmi 1 2 Using Site Manager To specify a management protocol Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Edit Connector window opens click on a port configured for frame relay 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Interfaces The Frame Relay Interfaces window opens 4 Setthe Mgmnt Type parameter See Help or the parameter description on page A 5 117376 C Rev 00 Configuring Frame Relay Services Site Manager Procedure continued You do this System responds 5 Edit other parameters if you want and click on Apply 6 Click on Done You return to the main Configuration Manager window Selecting Address Type and Length You can specify the data link connection identifier DLCI address type and length that the router and the frame relay network use to direct packets to their destinations The address type for the router and for the switch must be the same Selecting a DLCI Address Type The options for the DLCI address type parameter are e ADDR Q922 selects addressing as specified in the final version of the Q 922 standard Q 922 provides for FECN BECN DE and EA bits While most Q 92
107. ckets willbe sent timer interval the SVC over connected SVCs v AnS VGs configured as will be disconnected adjacent hosts that are not connected will be connected in order to send RIP packets Enabled _ Disabled Receive Inactivity gt When the RIP timer If no packets are received RIP expires within the inactivity timer interval the SVC will be disconnected S8dIMaS Aejay awes4 Bunn uop 00 eH O 9ZEZI 8e d Table B 1 RIP Parameters continued IP or IPX RIP Frame Relay Frame Relay IP or IPX SVC Broadcast SVC Inactivity Inactivity Timer Inactivity Timer RIP Enable Enable Timer Mode RIP Timer RIP Timer Functionality Functionality Enabled Enabled Receive Inactivity When the RIP timer If no packets are received RIP expires within the inactivity RIP packets will be sent timer interval the SVC over connected SVCs 5 any eves canhoited as will be disconnected adjacent hosts that are not connected will be connected in order to send RIP packets Enabled Disabled Receive Inactivity lt When the RIP timer If no packets are received RIP expires within the inactivity RIP packets willbe sent timer interval the SVC over connected SVCs doling SVS contiquied aS will be disconnected adjacent hosts that are not connected will remain disconnected SVCs will not be connected in order to send RIP packets Disabled Enabled or Receive RIP timer not N
108. configure To activate congestion control set to Enable 1 3 6 1 4 1 18 3 5 9 9 1 1 22 117376 C Rev 00 A 9 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Congestion Timer Configuration Manager gt Protocols gt Frame Relay gt Interfaces 1 0 5 to 5 seconds in 0 5 second intervals Specifies the length of time in seconds during which the router counts congestion notifications If the router receives the number of congestion notifications set by the congestion counter parameter the router stops transmitting data The router resumes transmission once it stops receiving congestion notifications Set the length of time the router should count congestion notifications from the network If you set this parameter for a long time period the router may be less likely to stop transmission for an intermittent congestion condition However the router may be slow to detect congestion resulting in long transmission delays once the congestion has cleared The value of this parameter applies to all PVCs that you do not individually configure 1 3 6 1 4 1 18 3 5 9 9 1 1 23 Congestion Counter Configuration Manager gt Protocols gt Frame Relay gt Interfaces 20 1 through 500 notifications Indicates the maximum number of congestion notifications that the router can rec
109. d Ead d Read pU du tuia 2 30 Using Traffic Shaping with Data Compression esses 2 31 Using Tang Shaping EITGOIWOl iuiiicsci catur eeepc e Lec rep pisc mue puS a 2 31 Using Gompression Etfectively 1 sce e reci t a ecc Cada 2 31 Oversubscribing the Interface bles ids Pere Ginka eer jas stones NEQU 2 32 Gusu Limits and Data Cute ag cocs cacectanccdecesnavectneds aieia eaaa a 2 32 FECN and BECN Notieaton Big eissir iaa Fc dc 2 33 Ae To Fony Or Fe sinnn RA PS 2 34 rere TIMIA Or S YOS orane ara mS 2 34 Transmit Inactivity Timer and Protocol Priority No Reset Filter 2 35 Managing Routing Information Protocol RIP Over SVCS sses 2 35 Mumine d ape ON EE E A crr terre err eter a 2 35 Traffic Distribution Between Data Paths 1 enitn tu tonnes TO RN 2 36 mtr NPI u is e 2 36 Address Based DISTID OUG iui secet cobi icis bui ee cox ur aoi EUR Ld eo cuota dam nnde 2 37 Protocol Prioritization and Multiline Incompatibility ents n TE T 2 37 PYG Pass TEUA aE EE NA 2 37 Rame Relay DiS aCe pe a a ii 2 38 Configuring Synchronous Lines for Frame Relay sse 2 39 For More Intemation About Frame Relay asco err eater m rk e orc 2 39 Chapter 3 Customizing Frame Relay Werd me 0 233 1 5 pr UE 3 1 Selecting a Ma agement TUO 2usosuscesai iori rendi tes aa Dx apa Ceuta du Ere RUN nents 3 2 Selecting Addrese Type and Length acces perio es iom acc o Ree
110. d that all elements contain appropriate values Call proceeding Connect After the network determines that the setup message is valid and contains all the appropriate information it returns a call proceeding message to the calling subscriber When the network delivers the setup message to the called subscriber the called subscriber may then return a call proceeding message to the network When the called subscriber accepts a call it sends a connect message back to the network The network validates the message and checks any negotiable parameters If the message passes this inspection the network passes the message back to the calling subscriber Disconnect When a subscriber wants to terminate a call it sends a disconnect message to the network The network validates the messages and passes it to the peer subscriber The cause information element is mandatory in the disconnect message Under normal conditions it contains a value of 16 Normal Call Clearing continued 117376 C Rev 00 2 13 Configuring Frame Relay Services Table 2 4 Message Processing continued Message Type Message Processing Release Under normal call clearing conditions the network passes the disconnect message through the network to the remote subscriber The subscriber receiving this disconnect message responds with a release message The network validates the release message and passes it to the local subscrib
111. default is 20 For example the following command line sets a congestion counter of 30 notifications svc options toronto congestion counter 30 svc options toronto Congestion Method To change the value for the congestion method 1 Navigate to the prompt for the SVC that you want to edit For example serial 3 2 frame relay 3 2 service 8 0 32 svc options toronto 2 Enter the congestion method command and the value you want the interface to use congestion method value Legal values are throttle then shutdown shutdown the default throttle inherit For example the following command line sets a congestion method of throttle svc options toronto congestion method throttle svc options toronto 117376 C Rev 00 3 63 Configuring Frame Relay Services Using Site Manager To enable congestion control Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens Click on Frame Relay The Frame Relay menu opens Click on Services The Frame Relay Service List window opens Click on the SVCs button The Frame Relay Options List for Service window opens Choose the SVC option record that has values in the following parameters that match the remote end of the SVC connection Remote Party Number Remote Party SubAddress optional Remote Party Number Plan
112. dicates the number of seconds allowed from the time the router sends a setup message to the called subscriber and receives a connect or call proceeding message from the called subscriber Indicates the number of seconds allowed from the time the router receives a call proceeding message to the time the router receives a connect or disconnect message Message sent by the called user to the network and by the network to the calling user to indicate call acceptance by the called user Indicates the number of seconds allowed from the time the router sends a disconnect message and receives a release message back Indicates the number of seconds allowed for a call clearing initiated by the other end of the connection or when the disconnect timer expires Indicates that the network returns a release complete message to the subscriber in response to a release message sent from the subscriber Message sent by the user or network in response to a status enquiry or to report error conditions Number of unnumbered acknowledgment frames UAs sent over SVCs to a subscriber or router A message sent by the user or network to solicit a status message 117376 C Rev 00 C 25 Configuring Frame Relay Services errors interface lt name gt Displays error statistics for frame relay interfaces This command allows for the following command filter and filter argument interface lt name gt Displays only frame relay interfaces config
113. e Retransmission Timer Idle Timer Retransmission Limit Information Limit Window Size State State controls whether LAPF is enabled or disabled To change this value 1 Navigate to the LAPF prompt For example box serial 1 2 frame relay 1 2 lapf 1 2 Enter the state command and the value you want to use state value Values are enabled and disabled The default is enabled For example the following command line disables LAPF lapf 3 2 state disabled lapf 3 24 Station Type Station Type determines whether the interface acts as the DCE or DTE To change this value 1 Navigate to the LAPF prompt For example box serial 1 2 frame relay 1 2 lapf 1 2 117376 C Rev 00 3 45 Configuring Frame Relay Services Enter the station type command and one of the following options dce dte networkside which means DCE userside which means DTE For example the following command line sets station type DCE lapf 3 2 station type dce lapf 3 2 Initiation Mode Initiation mode determines the action LAPF will take to initiate link setup by sending or holding unnumbered command SABME frames to poll the router at the other end of the connection To set the initiation mode 1 Navigate to the LAPF prompt For example box serial 1 2 frame relay 1 2 lapf 1 2 Enter the initiation mode command and either active the default or passive Active indicates that LAPF will send SABME frames
114. e forwarding throttling shutdown Displays information about the congestion state and the configuration of frame relay VCs This command allows for the following command filters and filter arguments dici lt dici gt Displays only frame relay VCs with the specified DLCI interface lt name gt Displays only frame relay VCs configured on the specified interface service lt name gt Displays only frame relay VCs on the specified service state forwarding Displays information about VCs in the following states throttling shutdown forwarding shows only frame relay VCs that are forwarding throttling shows only frame relay VCs that are throttling shutdown shows only frame relay VCs that are shut down C 10 117376 C Rev 00 Monitoring Frame Relay Using BCC show Commands The output contains the following information Interface DLCI Enable State Method Timer Counter Received FECN Received BECN The interface on which the frame relay circuit resides Name of the VC associated with this circuit Status of congestion control Disabled Enabled or Inherit Inherit indicates that the VC should use the parameters from the DLCMI record Status of traffic options are forwarding sending traffic at up to the maximum rate allowed on the PVC congested the PVC is not transmitting throttling the PVC is throttling back to the CIR rate Identifies the congestion method S
115. e Protocols menu in the Configuration Manager menu bar Click on Frame Relay The Protocols menu opens The Frame Relay menu opens 3 Click on Interfaces The Frame Relay Interface List window opens 4 Click on the Signaling button The Frame Relay Signaling Parameter window opens 5 Edit the following parameters Use Help or the parameters descriptions that begin on page A 18 Signaling Control Max SVCs 7303 Setup Message Timer 7305 Disconnect Timer T308 Release Timer 1310 Call Proceding Timer T322 Status Enq Retry Timer N322 Status Eng Retry Max 6 When you are finished click on OK You return to the Frame Relay Interface List window 7 Click on Done You return to the main Configuration Manager window 3 54 117376 C Rev 00 Customizing Frame Relay Setting Inactivity Values for SVCs The inactivity timer and inactivity mode timer attributes and parameters control how and when the router disconnects SVCs according to values that you configure for amount of time and the direction that data is flowing You can set values for a service record or for individual SVCs You can use either the BCC or Site Manager to set inactivity values for SVCs Using the BCC You can use the BCC to set values for a service record or for individual SVCs Service Record Inactivity Values To set inactivity values for a service record 1 Navigate to the service record
116. e window opens 5 Set the following parameters using Help or the parameter descriptions that begin on page A 29 Congestion Control Congestion Timer Congestion Counter Congestion Method applies only when you enable traffic shaping 6 Edit other parameters if you want and click on Apply 7 Click on Done You return to the main Configuration Manager window Using Traffic Shaping With PVCs Traffic shaping relieves bottlenecks in networks To enhance the effectiveness of traffic shaping you may also want to edit values for the PVC Congestion Control and Congestion Method attributes or parameters For more information about the interaction between these attributes or parameters and traffic shaping see Traffic Shaping Considerations on page 2 29 You can use either the BCC or Site Manager to configure traffic shaping Using the BCC To enable traffic shaping you configure values for High Queue Limit Low Queue Limit Committed Burst Excess Burst and Throughput High Queue Limit The high queue limit specifies the maximum number of buffers queued in high queue for PVC To change the high queue limit high queue limit integer 117376 C Rev 00 3 29 Configuring Frame Relay Services Low Queue LImit The low queue limit specifies the maximum number of buffers queued in low queue for PVC To change the low queue limit high queue limit lt integer gt Committed Burst
117. eached causes the software to take action The action take by the router software depends on the type of message timed out and the state of the service Timer T200 Timer T200 detects transmission timeouts When a timeout occurs the peer enters the timer recovery state and retransmits the frame up to a maximum of N200 times If this limit is reached the system performs the following operations e Terminates multiple frame operation e Discards all outstanding information frames e Transitions the peer to the TEI assigned state Initiates multiple frame setup If the remote peer receives a frame that contains an error it sends an REJ message to specify which frame was in error In response the local peer retransmits information frames beginning with the bad frame If the remote peer encounters an error which retransmission cannot remedy it sends an FRMR response to the local peer and transitions to the TEI assigned state The local peer discards all outstanding information frames transitions to the TEL assigned state and initiates multiple frame setup 2 10 117376 C Rev 00 Frame Relay Overview The supervisory frames RNR and RR support flow control on the channel If the receiver is not ready to receive data it sends an RNR message to tell the sender to wait When it is ready to receive data it sends an RR message Flow control in one direction is independent of the other direction Timer T203 Timer T20
118. eces of signaling information that it does not recognize 1 3 6 1 4 1 18 3 5 9 9 10 1 15 117376 C Rev 00 A 45 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID X 213 Gain Priority Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 15 0 to 15 Sets the priority of data required to add a connection This is a value that the router requests it is not guaranteed A value of 0 is the lowest priority with 14 as the highest A value of 15 means unspecified If your network supports X 213 prioritization you should assign a value You should accept the default if the network does not support X 213 prioritization unless the network is able to accept pieces of signaling information that it does not recognize 1 3 6 1 4 1 18 3 5 9 9 10 1 16 X 213 Gain LQA Priority Configuration Manager Protocols Frame Relay Services SVCs 15 0 to 15 Sets the lowest acceptable priority of data to add a connection This is a value below which the router will not create the SVC A value of 0 is the lowest priority with 14 as the highest A value of 15 means unspecified If your network supports X 213 prioritization you should assign a value You should accept the default if the network does not support X 213 prioritization unless the network is able to
119. eive during the congestion timer period before it stops transmitting If the router reaches the value set by this parameter it determines the line is congested and stops transmitting Specify the congestion count The smaller the number the more quickly the router detects congestion and stops transmitting The value of this parameter applies to all PVCs that you do not individually configure 1 3 6 1 4 1 18 3 5 9 9 1 1 24 117376 C Rev 00 Site Manager Parameters Parameter Congestion Method Path Configuration Manager gt Protocols gt Frame Relay gt Interfaces Default Shutdown Options Shutdown Throttle Throttle Then Shutdown Function Specifies the method of congestion control Shutdown terminates the VC when congestion occurs Throttle queues traffic when congestion occurs traffic resumes when congestion alleviates This option is valid only when traffic shaping is enabled Throttle Then Shutdown first queues traffic when congestion occurs and then terminates the VC if throttling does not alleviate congestion This option is valid only when traffic shaping is enabled Instructions Select a setting appropriate to your network MIB Object ID 1 3 6 1 4 1 18 3 5 9 9 2 1 18 SVC LAPF Parameters If you configure SVCs LAPF parameters are important to your network You can edit these parameters in the Frame Relay LAPF Parameters window Figure A 3 117376 C Rev 00 A 11 Configuring Frame Relay Servi
120. ens DLCI Number Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs gt Add None The frame relay switch provider assigns DLCI numbers These assigned numbers are valid options Valid DLCI numbers vary based on the frame relay address length The DLCI numbers that the switch provider assigns are generally in the following ranges 2 byte 16 to 1007 3 byte 1024 to 64511 4 byte 131072 to 4194303 Specifies the PVC identification number that the frame relay network uses to direct data Enter the decimal number that the frame relay provider assigns 1 3 6 1 4 1 18 3 5 9 9 2 1 4 117376 C Rev 00 A 25 Configuring Frame Relay Services PVC Service Record Parameters The FR PVC List for Service window Figure A 7 contains the PVC parameters set automatically when you use the Add button to add a PVC PVC Dlci 20 Done Add Delete Move Apply Values Help ji a Circuit State Set ACTIVE P Multicast UNICAST Hybrid Mode Committed Burst Excess Burst Throughput Figure A 7 FR PVC List for Service Window A 26 117376 C Rev 00 Site Manager Parameters To access the FR PVC List for Service window Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens 2 Click on Frame Relay The Frame Relay menu opens Parameter Path Default Options
121. er Release complete Once the network receives a release message from the subscriber and verifies it the network returns a release complete message to the subscriber After receiving the release message from the network the subscriber responds with a release complete message Frame Relay Service Records Bay Networks uses service records to define frame relay circuits A service record is a data structure that allows flexible grouping and characterization of VCs A service record can contain a single PVC or SVC multiple PVCs or SVCs or a combination of PVCs and SVCs Service records e Simplify network addressing for VCs because you define and associate only one protocol address with groups of frame relay VCs e Allow multiple groups of VCs per frame relay interface Enable you to group multiple VCs for each network protocol into separate service records thereby reducing the number of buffers needed per circuit during broadcasts e Lower customer costs by creating multiple broadcast domains e Conserve resources because they require a small number of circuits e Are easy to configure Default Service Record The router creates the first service record automatically when you select frame relay as your WAN protocol This first service record is the default service record Any VCs not associated with another configured service record use the default service record 2 14 117376 C Rev 00 Frame Relay O
122. er A 28 excess burst See Be exchange identification XID frames 2 9 F FECN forward explicit congestion notification congestion control 2 22 definition of 2 5 FR PVC List for Service window A 26 frame relay deleting from a router 1 9 overview 2 2 reference sources 2 39 starting 1 1 Frame Relay Interface List Window for PVCs A 2 Frame Relay PVC Add Window A 24 Frame Relay Service List window A 23 Frame Relay Signaling Parameters Window A 17 Frame Relay SVC Options Add window A 40 full enquiry interval 3 7 Full Enquiry Interval parameter A 7 G group mode 2 15 grouping service records for multiline 3 34 H header format 2 byte 2 6 3 or 4 byte 2 6 hybrid mode 2 16 Hybrid Mode parameter A 28 hybrid mode configuring 3 20 117376 C Rev 00 inactivity timer setting 3 57 Inactivity Timer Mode parameter A 44 Inactivity Timer parameter A 44 inactivity timers 2 34 inactivity values setting for SVCs 3 55 incoming call proceeding state 2 12 interface parameters A 1 interface oversubscribing with traffic shaping 2 32 IP adjacent hosts 1 9 IPX adjacent hosts 1 9 K K Max Window Size parameter A 16 L LAP F release complete message processing 2 14 release message processing 2 14 LAPF active state 2 9 call present state 2 12 call proceeding processing 2 13 call setup processing 2 12 categories of management frames 2 9 connect message processing 2 13 descriptio
123. er A 36 SVCs 2 12 call proceeding message 2 13 call proceeding processing 2 13 call setup processing 2 12 2 13 categories of management frames 2 9 committed information rate CIR 2 4 configuring on a default service record 1 7 connect message 2 13 connect message processing 2 13 definition of 2 2 2 3 disconnect indication state 2 12 disconnect message 2 13 disconnect message processing 2 13 exchange identification XID frames 2 9 frame relay signaling 2 8 incoming call proceeding state 2 12 LAPF and signaling 2 8 LAPF operational states 2 9 LAPF timeout and retransmission timers 2 10 117376 C Rev 00 N200 retransmission timeout 2 10 numbered information frames 2 9 numbered supervisory frames 2 9 release complete message 2 14 release complete message processing 2 14 release message 2 14 release message processing 2 14 release request state 2 12 retransmission timeout 2 10 retransmission timeouts 2 10 2 11 setup message 2 12 2 13 signaling 2 11 T200 retransmission timeout 2 10 timers 2 12 unnumbered control frames 2 9 SVCs adding 3 41 SVCs disabling 3 43 synchronous line configuration 2 39 T T200 retransmission timeout 2 10 T200 Base Timer parameter A 15 T203 Idle Timer parameter A 15 T303 Setup Message Timer parameter A 19 T305 Disconnect Timer parameter A 19 T308 Release Timer parameter A 20 T310 Call Proceding Timer parameter A 20 T322 Status Enq Retry Timer p
124. er to send RIP packets Enabled Enabled Transmit Inactivity lt When the RIP timer If no non RIP packets are RIP expires transmitted within the RIP packets willbe sent jnactivity timer interval over connected SVCS the SVC will be discon e Any SVCs configured as adjacent hosts that are not nected connected will be connected in order to send RIP packets Enabled Disabled Transmit Inactivity lt When the RIP timer If no non RIP packets are RIP expires transmitted within the inactivity timer interval the SVC will be discon nected SOAS Aejey ewes 104 jueuieBeue N dIY Z d 00 eu O 9ZEZIL Table B 1 RIP Parameters continued RIP packets will be sent over connected SVCs e Any SVCs configured as adjacent hosts that are not connected will remain disconnected SVCs will not be connected in order to send RIP packets IP or IPX RIP Frame Relay Frame Relay IP or IPX SVC Broadcast SVC Inactivity Inactivity Timer Inactivity Timer RIP Enable Enable Timer Mode RIP Timer RIP Timer Functionality Functionality Disabled Enabled or Transmit RIP timer not Not applicable RIP is If no packets are trans Disabled applicable disabled mitted within the inactiv RIP is dis ity timer interval the abled SVC will be discon nected Enabled Enabled Receive Inactivity gt When the RIP timer If no packets are received RIP expires within the inactivity RIP pa
125. er than zero Choose a value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 22 A 48 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters LL Core Min In Throughput Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 0 0 to 21447463647 b s Specifies the minimum acceptable incoming throughput To enable traffic shaping the throughput parameters and the burst parameters must be set to values greater than zero Choose a value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 23 LL Core Out Committed Burst Configuration Manager gt Protocols gt Frame Relay gt Services gt SVCs 0 0 to 21447463647 b s Specifies the outgoing committed burst size This is the maximum number of bits that a VC can transmit during the VC s burst period Tc when congestion is occurring To enable traffic shaping this parameter and the Throughput parameter CIR must both be greater than zero The Core Out Committed Burst Bc value should be lower than the Core Out Throughput value Choose a value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 24 117376 C Rev 00 A 49 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Optio
126. esesessssss A 2 Figure A 2 Frame Relay Interface List Window for SVCS ssssssss A 3 Figure A 3 FR LAPF Parameters VEIDOOW 2e renes eoe recesi eae L ces eme ka sae Ea A 12 Figure A 4 Frame Relay Signaling Parameters Window sess A 17 Figure A 5 Frame Relay Service List Window for PVCs ssssssss A 23 Figure A 6 Frame Relay PVC Add Window sss A 24 Figure A 7 FR PVC Dist or Service VEIBOONW 2a sa deasces cuire ceana A 26 Figure A 8 Services Multiline With Window erate renee rere rae A 32 Figure A 9 Add Multiline Services Window eene A 33 Figure A 10 Frame Relay Service List Window for SVOs sssssss A 35 Figure A 11 Frame Relay SVC Options Add Window ssssssees A 40 117376 C Rev 00 xi Table 2 1 Table 2 2 Table 2 3 Table 2 4 Table 2 5 Table 2 6 Table 2 7 Table 2 8 Table B 1 Table C 1 117376 C Rev 00 Tables PVC and SVC Protocol and Feature Support 2 4 LAPF Timeout and Retransmission Timers sseseesesss 2 10 IMabuDHE TIIOEE reciton amaria ccc an tp esos pube tese EE Cuna iUd R Pas ERE EE 2 12 Message PROSOSSIPET acini xKenbab ex seb aris e aaa So EU d aD d c 2 13 How Protocols Handle Address Resolution chiens a 2 19 comno and Guiang 26 eodeni aas nin reer ere Oa uni ada tr treet
127. ess resolution 117376 C Rev 00 2 19 Configuring Frame Relay Services Traffic Control Frame relay is unreliable It does not include error recovery mechanisms relying instead on the upper layer protocols to detect and retransmit lost frames Hub and spoke topologies often present a big pipe little pipe situation The central or hub site has a faster link to the frame relay service because it is a point of concentration for many remote sites it has a big pipe with for example a T1 E1 connection that can transmit data at rates of 1 54 Mb s The remote sites usually support a much lower line speed 56 Kb s to 64 Kb s or little pipe Figure 2 8 illustrates this concept 64 Kb s B 1 536 2 048Mb s Figure 2 8 Big Pipe Little Pipe Topology The central site router sends traffic at its available bandwidth in this example at T1 rates 1 536 Mb s in the United States and Canada 2 048Mb s elsewhere Some switches recognize that the remote site is configured at a lower speed and begin to drop frames above the capacity of the remote site router At the remote site the frame relay interface discards frames beyond its available buffer The assumption is that the user application detects the lost frames and either retransmits them or uses a flow control mechanism in the protocol such as windowing
128. est DLCI number highest DLCI number 7 Click on OK System responds The Frame Relay PVC List window reopens Note that it now lists the PVCs you have just created Deleting PVCs from Service Records You can delete PVCs from already existing service records After you delete a PVC it may reappear on the list of active PVCs if the switch provider does not delete it As soon as the switch provider removes the PVC frame relay dynamically deletes the PVC from the list If the switch provider deletes a PVC that you manually configured the circuit state is set to invalid and the PVC remains unused until you delete it from the interface You can use either the BCC or Site Manager to delete PVCs from service records Using the BCC 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 service dallas 2 Enter the delete command and identify the PVC or PVCs you want to delete using this syntax delete pvc port number slot number DLCI number For example the following command line deletes PVCs 51 and 52 service dallas delete pvc 1 2 51 delete pvc 1 2 52 service dallas 3 16 117376 C Rev 00 Customizing Frame Relay Using Site Manager To delete PVCs Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a port configured for frame relay The Edit Connector window opens
129. estion notifications When you enable congestion control you can set the length of time during which the router counts congestion notifications You can also set the maximum number of congestion notifications that the router can receive during this time period If the router receives this number of congestion notifications within the time period you specify it stops transmitting data The router resumes transmission when it stops receiving congestion notifications 3 58 117376 C Rev 00 Customizing Frame Relay If you enable congestion control all SVCs on the interface use congestion control and the values you specify for the congestion timer and congestion counter unless you configure SVCs individually and either disable this feature or select other values for the congestion control attributes and parameters You can use either the BCC or Site Manager to control congestion for SVCs Using the BCC You can use the BCC to configure congestion control for an interface or for individual SVCs Configuring Congestion Control for an Interface You can edit the following attributes in the BCC e Congestion Control e Congestion Timer Congestion Counter e Congestion Method Congestion Control 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 2 Enter the congestion control command and the value enabled congestion control enabled For example the following command line enables con
130. eters A 34 117376 C Rev 00 Site Manager Parameters FR Slot 2 COM1 Cct 1 Default Done Delete PYCs Multi line Apply Values Help Service Name 202101 0 1 SVC Local Party Number SYC Local Party Sub Address SYC Local Party Number Plan x 121 SVC Local Party Type of Number INTERNATIONAL Figure A 10 Frame Relay Service List Window for SVCs To access the Frame Relay Service List window Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar Click on Frame Relay The Frame Relay menu opens Click on Services The Frame Relay Service List window opens 117376 C Rev 00 A 35 Configuring Frame Relay Services Note You do not have access to the SVC parameters until you set the SVC Support parameter to Enable 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 Service Name Configuration Manager gt Protocols gt Frame Relay gt Services None line number gt 0 lt circuit number Identifies the service record Site Manager assigns a unique name in the format given to each service record There is no need to change this value 1 3 6 1 4 1 18 3 5 9 9 5
131. etwork congestion These bits as defined by the frame relay specification are the forward explicit congestion notation FECN bit and the backward explicit congestion notation BECN bit If the network detects congestion it alerts the router in the same direction as the received frame by changing the frame s FECN bit from 0 to 1 For nodes in the opposite direction of the received frame it changes the frame s BECN bit from 0 to 1 Figure 2 9 Congestion direction Frame relay network node E E Frame relay Frame relay network network FECN node node FR0010A Figure 2 9 Detecting and Controlling Network Congestion 2 22 117376 C Rev 00 Frame Relay Overview If you enable the congestion control feature you can specify the number of FECN BECN bits the router receives in a given time period before it stops transmitting frames While frames are going across the network the frame relay interface checks received packets for FECN and BECN bits set to 1 If the interface receives the specified number of bits during the designated time period frame relay drops all traffic destined for the PVC where there is congestion When the interface no longer receives these congestion notifications the router resumes transmission For example suppose you set the congestion timer to 0 5 second and the c
132. example the following command line sets a congestion timer of 2 5 seconds pvc 1 2 51 congestion timer 2 5 pvc 1 2 51 Congestion Counter To change the value for the congestion counter 1 Navigate to the prompt for the PVC that you want to edit For example box serial 1 2 frame relay 1 2 orlando pvc 1 2 51 3 26 117376 C Rev 00 Customizing Frame Relay 2 Enter the congestion counter command and the value you want the interface to use congestion counter lt integer gt lt integer gt is the maximum number of congestion notifications the router can receive during the congestion timer period before it stops transmitting data Legal counter values are 1 to 500 notifications The default is 20 For example the following command line sets a congestion counter of 30 notifications pvc 1 2 51 congestion counter 30 pvc 1 2 51 Congestion Method To change the value for the congestion method 1 Navigate to the prompt for the PVC that you want to edit For example box serial 1 2 frame relay 1 2 newyork pvc 1 2 51 2 Enter the congestion method command and the value you want the interface to use congestion method value Legal values are throttle then shutdown shutdown the default throttle inherit For example the following command line sets a congestion method of throttle pvc 1 2 51 congestion method throttle pvc 1 2 51 117376 C Rev 00 3 27 Configuring Frame Relay
133. fault is 4 For example the following command line sets a timer of 10 seconds signalling 3 2 setup timer 10 signalling 3 2 Disconnect Timer Disconnect timer indicates the number of seconds allowed from the time the router sends a disconnect message and receives a release message back If a timeout occurs the router sends a release message and enters the release request state The timer is not restarted To set the disconnect timer 1 Navigate to the signaling prompt For example box serial 1 2 frame relay 1 2 signalling 1 2 Enter the disconnect timer command and the value you want to use disconnect timer integer 117376 C Rev 00 3 51 Configuring Frame Relay Services lt integer gt is the number of seconds allowed Legal values are 20 to 90 seconds The default is 30 For example the following command line sets a timer of 45 seconds signalling 3 2 disconnect timer 45 signalling 3 2 Release Timer Release timer indicates the number of seconds allowed for call clearing initiated by the other end of the connection or when the disconnect timer expires If a timeout occurs the router retransmits the release message and restarts the timer If the timer expires a second time the call is cleared To set the release timer 1 Navigate to the signaling prompt For example box serial 1 2 frame relay 1 2 signalling 1 2 2 Enter the release timer command and the integer value you want to use
134. figure check that PVCs with the same destination have the same DLCI number Note If you use multiline packets traveling on the two paths may arrive at their destination out of sequence Some protocols do not tolerate packets arriving out of sequence and as a result you may experience poor performance or failures For more instruction on configuring multiline mode see Grouping Service Records for Multiline Mode on page 3 34 Traffic Distribution Between Data Paths To distribute traffic between multiline data paths you can use one of two methods e Random distribution e Address based distribution Random Distribution Random distribution means that as the router sends out each packet it alternates between the lines This option determines which line the packet uses based on a randomly assigned number For each outbound packet the router generates a random number and this number designates the line to use 2 36 117376 C Rev 00 Frame Relay Overview Random balancing evenly distributes traffic and lets the router use the two lines efficiently Because packets travel on different paths they arrive at the destination out of sequence and the upper layer protocols for example IP and Open Systems Interconnection OSI have to resequence the information Some protocols cannot tolerate packets arriving out of sequence so be sure this option is appropriate for your application Address Based Distribution Address b
135. figuring on a default service record 1 6 definition of 2 2 deleting 3 16 moving 3 17 PVCsdefinition of 2 3 Q QoS Quality of Service 2 25 quality of service refining for SVCs 2 28 R random traffic distribution for multiline 2 36 release request state 2 12 Remote Party Number parameter A 41 Remote Party Number Plan parameter A 42 Remote Party Sub Address parameter A 41 Remote Party Type of Number parameter A 42 retransmission timeouts 2 10 2 11 RFC 1490 2 18 RIP and SVCs 2 35 S Service Name parameter A 24 A 36 service record parameters A 22 service records adding 3 12 3 35 default service record 2 14 deleting 3 38 multiple on an interface 2 15 117376 C Rev 00 Services Multiline With window A 32 signaling call proceeding processing 2 13 call setup processing 2 12 2 13 connect message processing 2 13 SVC 2 11 signaling parameters editing 3 50 Signalling Control parameter A 18 Site A 1 source routing using RFC 1490 2 18 starting frame relay 1 1 Station Type parameter A 13 SVC Call Block parameter A 38 SVC Control parameter A 43 SVC Inactivity Mode parameter A 39 SVC Inactivity Timer parameter A 39 SVC Inscreening Disable parameter A 38 SVC Inscreening Usage parameter A 38 SVC Local Party Number parameter A 36 SVC Local Party Number Plan parameter A 37 SVC Local Party Sub Address parameter A 37 SVC Local Party Type of Number parameter A 37 SVC Support paramet
136. from the time the router sends a disconnect message and receives a release message back This timer is used when this router initiates call clearing In the event of a timeout the router sends a release message and enters the release request state The timer is not restarted Enter the timer value for call clearing 1 3 6 1 4 1 18 3 5 9 9 9 1 7 117376 C Rev 00 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID T308 Release Timer Configuration Manager gt Protocols gt Frame Relay gt Interfaces gt Signaling 4 2 to 90 seconds Indicates the number of seconds allowed for call clearing initiated by the other end of the connection or when the T305 Disconnect Timer expires If timer T305 expires the router enters the release request state starts timer T308 and sends a release message Timer T308 stops when the router receives a release complete message from the other end of the connection In the event of a timeout the router retransmits the release message and restarts the timer If the timer expires a second time the call is cleared The timer is not restarted Enter the timer value for call clearing by the other end of the connection or when timer T305 expires 1 3 6 1 4 1 18 3 5 9 9 9 1 8 T310 Call Proceding Timer Configuration Manager gt Protocols gt
137. g on the interface accept the default Enable If you do not want to use signaling choose Disable 1 3 6 1 4 1 18 3 5 9 9 9 1 2 Max SVCs Configuration Manager gt Protocols gt Interfaces gt Signaling 100 1 to 2147483647 Indicates the maximum number of simultaneous switched virtual circuits allowed on the port The more SVCs you allow on the port the larger the system memory required to support them Enter the maximum number of simultaneous SVCs per port for your network 1 3 6 1 4 1 18 3 5 9 9 9 1 5 A 18 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters T303 Setup Message Timer Configuration Manager gt Protocols gt Frame Relay gt Interfaces gt Signaling 4 2 to 90 seconds Indicates the number of seconds allowed from the time the router sends a setup message to the called subscriber and receives a connect or call proceeding message from the called subscriber In the event of a timeout the router retransmits the setup message and restarts the timer If the timer expires a second time the call is cleared Enter the timer value for call setup 1 3 6 1 4 1 18 3 5 9 9 9 1 6 T305 Disconnect Timer Configuration Manager gt Protocols gt Frame Relay gt Interfaces gt Signaling 30 20 to 90 seconds Indicates the number of seconds allowed
138. ger menu bar The Protocols menu opens Click on Frame Relay The Frame Relay menu opens Click on Services The Frame Relay Service List window opens 117376 C Rev 00 A 23 Configuring Frame Relay Services Parameter Service Name Path Configuration Manager gt Protocols gt Frame Relay gt Services Default None Options line number gt 0 lt circuit number Function Identifies the service record Instructions Site Manager assigns a unique name in the format given to each service record There is no need to change this value MIB Object ID 1 3 6 1 4 1 18 3 5 9 9 5 1 7 Required DLCI Parameter for Each PVC The Frame Relay PVC Add window Figure A 6 contains the DLCI Number parameter Frame Relay PC Add Cancel OK Help Figure A 6 Frame Relay PVC Add Window A 24 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters To access the Frame Relay PVC Add window Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Click on the PVCs button The FR PVC List for Service window opens 5 Click on the Add button The Frame Relay PVC Add window op
139. gestion control for this frame relay interface frame relay 1 24 congestion control enabled frame relay 1 2 117376 C Rev 00 3 59 Configuring Frame Relay Services Congestion Timer To change the value for the congestion timer 1 Navigate to the prompt for the interface that you want to edit For example box serial 1 2 frame relay 1 2 Enter the congestion timer command and the integer value you want the interface to use congestion timer integer integer is the length of time in seconds during which the router counts congestion notifications see Congestion Counter on page 3 62 If the router receives the number of congestion notifications you set in the congestion counter during this amount of time the router stops transmitting data Legal timer values are 0 5 1 1 5 2 2 5 3 3 5 4 4 5 and 5 seconds The default is 1 second For example the following command line sets a congestion timer of 2 5 seconds frame relay 1 2 congestion timer 2 5 frame relay 1 2 Congestion Counter To change the value for the congestion counter 1 Navigate to the prompt for the interface that you want to edit For example box serial 1 2 frame relay 1 2 Enter the congestion counter command and the integer value you want the interface to use congestion counter integer integer is the maximum number of congestion notifications the router can receive during the congestion timer peri
140. gt When the RIP timer RIP packets will refresh Direction RIP expires the transmit inactivity RIP packets willbe sent timer If no packets are Over contiested VC received within the inac e Any SVCs configured as Ms adjacent hosts that are not vity timer inter val the connected will remain SVC will be discon disconnected SVCs will nected not be connected in order to send RIP packets Enabled Enabled Either Inactivity lt When the RIP timer If no non RIP packets are Direction RIP expires transmitted OR if no packets are received within the inactivity timer interval the SVC will be disconnected S8dIMas Aejay aues4 BuunbyuoD 00 eH O 9ZEZI S d Table B 1 RIP Parameters continued RIP packets will be sent over connected SVCs e Any SVCs configured as adjacent hosts that are not connected will be connected in order to send RIP packets IP or IPX RIP Frame Relay Frame Relay IP or IPX SVC Broadcast SVC Inactivity Inactivity Timer Inactivity Timer RIP Enable Enable Timer Mode RIP Timer RIP Timer Functionality Functionality Enabled Disabled Either Inactivity When the RIP timer If no non RIP packets are Direction RIP expires transmitted OR if no RIP packets will be sent packets are received over connected SVCs thi Mq Any SVCs configured as within the TRACTU adjacent hosts that are not mer inter val the SVC connected will remain wi
141. gure 2 2 Frame Relay Header 2 Byte Format Figure 2 2 shows the frame relay header as a 2 byte structure Frame relay can also format the header using 3 or 4 bytes as shown in Figure 2 3 Note however that you must configure the frame relay interface on the router to use the same header length as the switched network to which it is connected 3 byte format 4 byte format 8 7 6 5 4 3 8 7 6 5 4 3 2 1 2 1 DLCI high order C R EA DLCI high order C R EA DLCI m Hd DLCI EA DLCI low order or DLCI low order DL CORE control DL CORE control BGEA FR0003A B E C N Figure 2 3 Frame Relay Header 3 and 4 Byte Formats 2 6 117376 C Rev 00 Frame Relay Overview Management Protocols Router Figure 2 4 Frame relay is an access protocol that runs between a router or data terminal equipment DTE and a switch or data communications equipment DCE The router and the switch use the Data Link Control Management Interface DLCMI to exchange information about the interface and the status of each virtual circuit Figure 2 4 Network node switch DLCM E m P gt sali joo Frame Router node relay switch switch FR0004A Structure of the DLCMI DLCMI supports three standard data link management specifications LMI ANSI T1 617 Annex D and CCITT now IT
142. hange in the FR PVC List for Service window Enabling Multicast The multicast feature sets up a separate DLCI that replicates broadcast packets and forwards them to the appropriate destinations You can enable support for frame relay multicast service but only if your frame relay subscription service provides multicast service You can use either the BCC or Site Manager to enable multicast service Using the BCC To enable multicast service you must set the appropriate attribute for both the interface and the PVC 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 Enter the multicast control command and the value enabled multicast control enabled For example the following command line enables multicast for this frame relay interface frame relay 1 2 multicast control enabled frame relay 1 2 Navigate to the prompt for the PVC that you want to configure as multicast For example box serial 1 2 frame relay 1 2 service 4 0 32 pvc 1 2 51 3 18 117376 C Rev 00 Customizing Frame Relay Enter the multicast control command and the value enabled For example the following command line enables multicast for this PVC 4 multicast control enabled pvc 1 2 51 multicast control enabled pvc 1 2 51 Using Site Manager To enable multicast service you must set the appropriate parameter for both the interface and the PVC Site Manager Procedure You
143. he The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Choose PVCs gt Add The Frame Relay PVC List for Service window opens 5 Choose Add The Frame Relay PVC Add window opens 6 Enter a value in the DLCI Number parameter See Help or the parameter description in Appendix A 7 Click on Done You return to the Frame Relay PVC Add window 8 Add more PVCs as your network requires You return to the PVC List for Service When you are finished click on Done window 9 Click on Done You return to the Frame Relay Service List window 10 Click on Done You return to the Frame Relay Circuit Definition window 11 Click on Done You return to the main Configuration Manager window Configuring an SVC You can configure SVCs using either the default service record or by adding a service record Use these instructions to configure SVCs on the default service record To configure SVCs on service records that you add see Adding SVC Options to Service Records on page 3 41 117376 C Rev 00 1 7 Configuring Frame Relay Services Using the BCC To add an SVC to the default service record 1 4 Navigate to the frame relay prompt For example box frame relay 1 2 Navigate to the default service prompt The BCC context changes to the default service record For exa
144. hrottle frame relay 1 24 congestion method throttle frame relay 1 2 Configuring Congestion Control for Individual PVCs To enable or change congestion control for a PVC Congestion Control 1 Navigate to the prompt for the PVC you want to edit For example box serial 1 2 frame relay 1 2 dallas pvc 1 2 51 Enter the congestion control command and the value you want the interface to use congestion control lt value gt Legal values are enabled disabled inherit 117376 C Rev 00 3 25 Configuring Frame Relay Services For example the following command line enables congestion control for this frame relay interface pvc 1 2 51 congestion control enabled pvc 1 2 51 Congestion Timer To change the value for the congestion timer 1 Navigate to the prompt for the PVC that you want to edit For example box serial 1 2 frame relay 1 2 dallas pvc 1 2 51 Enter the congestion timer command and the value you want the interface to use congestion timer lt integer gt lt integer gt is the length of time in seconds during which the router counts congestion notifications see Congestion Counter on page 3 26 following If the router receives the number of congestion notifications you set in the congestion counter during this amount of time the router stops transmitting data Legal timer values are 0 5 1 1 5 2 2 5 3 3 5 4 4 5 and 5 seconds The default is 1 second For
145. hutdown the VC terminates when congestion occurs Throttle the VC queues traffic when congestion occurs traffic resumes when the congestion alleviates Throttle then shutdown first queues traffic when congestion occurs and then terminates the VC if throttling does not alleviate congestion Inherit the VC uses the parameter from the DLCMI record Length of time in seconds during which the router counts congestion notifications Maximum number of congestion notifications that the router can receive during the timer period before it stops transmitting Number of outbound forward explicit congestion notifications Number of outbound backward explicit congestion notifications 117376 C Rev 00 Configuring Frame Relay Services svcs calls priority shaping dlci dlci interface lt name gt service lt name gt Displays general information about all frame relay SVCs You can display current operation status and SVC type svcs calls Displays call information for active frame relay SVCs This command allows for the following command filters and filter arguments dici lt dici gt Displays only frame relay SVCs with the specified DLCI interface lt name gt Displays only frame relay SVCs configured on the specified interface service name Displays only frame relay SVCs on the specified service The output contains the following information Interface Interface on which the SVC res
146. ia Pacific 61 2 9927 8888 61 2 9927 8899 Latin America 561 988 7661 561 988 7550 Information about customer service is also available on the World Wide Web at support baynetworks com How to Get Help If you purchased a service contract for your Bay Networks product from a distributor or authorized reseller contact the technical support staff for that distributor or reseller for assistance If you purchased a Bay Networks service program call one of the following Bay Networks Technical Solutions Centers Technical Solutions Center Telephone number Fax number Billerica MA Santa Clara CA 800 2LANWAN 800 2LANWAN 978 916 3514 408 495 1188 Valbonne France 33 4 92 96 69 68 33 4 92 96 69 98 Sydney Australia 61 2 9927 8800 61 2 9927 8811 Tokyo Japan 81 3 5402 0180 81 3 5402 0173 117376 C Rev 00 xix Configuring Frame Relay Services Bay Networks Educational Services Through Bay Networks Educational Services you can attend classes and purchase CDs videos and computer based training programs about Bay Networks products Training programs can take place at your site or at a Bay Networks location For more information about training programs call one of the following numbers Region Telephone number United States and Canada 800 2LANWAN then enter Express Routing Code ERC 282 when prompted 978 916 3460 direct Europe
147. ic route adjacent host static service route filter service network filter service name filter service pvc svc options rip ospf neighbor arp igmp relay ipx rip sap static route adjacent host static service route filter service network filter service name filter 1 4 117376 C Rev 00 Starting Frame Relay ipxwan rip sap static route adjacent host static service route filter service network filter service name filter backup circuit out phone number Schedule caller resolution You can now configure PVCs and SVCs You can also specify the protocols you want to run on this interface Using Site Manager To enable frame relay 1 Select a link or net module connector that requires a WAN circuit 2 Specify frame relay as the WAN protocol by completing the tasks in the following table Site Manager Procedure You do this System responds 1 Choose a link or net module The Protocol window opens 2 Choose Frame Relay and click on OK The Select Protocols window opens You have enabled frame relay You can now configure PVCs and SVCs You can also specify the protocols you want to run on this interface Protocol prioritization is enabled automatically when you select frame relay For detailed information on protocol prioritization see Configuring Traffic Filters and Protocol Prioritization See the appropriate configuration guides for information on configuring the protocols
148. id mode see Figure 2 6 on page 2 17 each PVC acts as a separate bridge port This enables the bridge running on the frame relay 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 sends it out from all ports including the port that has access to site B Therefore data from site A can reach site B You configure hybrid mode by enabling the hybrid mode PVC parameter For instructions see Configuring Hybrid Mode for PVCs on page 3 20 Source Routing RFC 1490 Source routing is the method by which a bridge sends data across two networks The router supports source routing over frame relay networks using RFC 1490 standard frame relay data encapsulation To configure source routing see Configuring Bridging Services RFC 1490 defines the encapsulation method for sending data across a frame relay network Bay Networks routers implement RFC 1490 for all protocols that Bay Networks supports over frame relay networks Address Resolution for PVCs Address resolution for PVCs maps a remote network address such as an IP address to a local DLCI number For most protocols that you configure for a frame relay interface the router performs address resolution automatically However IP AppleTalk and VINES use the Address Resolution Protocol ARP ARP dynamically generates an ARP table of addresses and DLCI numbers by sending messages back and forth to each networ
149. ide an easy and relatively inexpensive solution for disaster recovery Costs associated with having a redundant PVC are eliminated In addition you can prepare an SVC network for disaster recovery by performing incremental backups to a mirror image database on a remote server In addition to cost savings SVCs provide other benefits When frame relay networks using global addressing approach a thousand sites they run out of data link connection identifiers DLCIs SVCs enable you to manage connectivity on the basis of use rather than permanent connections Using SVCs also simplifies network administration because you do not have to preconfigure network topologies and support moves adds and changes as with PVCs This can be a significant benefit in large highly meshed networks 117376 C Rev 00 2 3 Configuring Frame Relay Services SVCs provide true bandwidth on demand service that can be customized based on the application in use For example a short interactive session might use an SVC with a low or zero committed information rate CIR or throughput rate while a large file transfer of time critical data might require an SVC at a high CIR value PVC and SVC Comparison Table 2 1 lists the protocols and features that PVCs and SVCs support Table 2 1 PVC and SVC Protocol and Feature Support Protocol Feature PVCs Support SVCs Support IP IPX v v AppleTalk v APPN Bridging DECnet DLSw OSI VINES XNS
150. ides DLCI Name of the SVC associated with this circuit Direction Direction of the call to the router inbound or outbound Calling Number Number the router is calling Called Number Router being called C 12 117376 C Rev 00 SVCS priority Monitoring Frame Relay Using BCC show Commands Displays priority information for active frame SVCs This command allows for the following command filter and filter arguments dici lt dlici gt Displays only SVCs with the specified DLCI interface name Displays only SVCs configured on the specified interface service lt name gt Displays only SVCs on the specified service The output contains the following information Interface DLCI Data Priority Gain Priority Keep Priority Interface on which the SVC resides Name of the SVC associated with this circuit Priority of data on the network connection This is a value that the router requests it is not guaranteed Priority of data required to add a connection This is a value that the route requests it is not guaranteed Priority of data required to maintain a connection This is a value the router requests it is not guaranteed 117376 C Rev 00 C 13 Configuring Frame Relay Services svcs shaping Displays shaping information for active SVCs This command allows for the following command filter and filter arguments dici lt dici gt Displays only SVCs with the specified DLCI interface name
151. in Configuration are finished click on Done Manager window Controlling Congestion for PVCs Congestion occurs when a node receives more frames than it can process or sends more frames than the transmission line can transport You can enable congestion control on your network When you enable congestion control the router receives congestion notification messages from the PVC experiencing congestion and drops all outbound traffic destined for that PVC until it no longer receives congestion notifications When you enable congestion control you can set the length of time during which the router counts congestion notifications You can also set the maximum number of congestion notifications that the router can receive during this time period If the router receives this number of congestion notifications within the time period you specify it stops transmitting data The router resumes transmission when it stops receiving congestion notifications If you use traffic shaping with congestion control you also need to decide which congestion control method you want the router to use For more information about traffic shaping see Using Traffic Shaping With PVCs on page 3 29 You can use either the BCC or Site Manager to control congestion for PVCs Using the BCC If you enable congestion control all PVCs on the interface use congestion control and the values you specify for the congestion timer and congestion counter unless
152. indow opens Select the appropriate service record and click on PVCs The Frame Relay PVC List window opens Click on a PVC that you want to configure for traffic shaping Configure the following traffic shaping parameters using Help or the parameter descriptions that begin on page A 28 Committed Burst Excess Burst Throughput The parameters are now set to the values you chose Click on Done You return to the Frame Relay Service List window Click on Done You return to the Frame Relay Circuit Definition window Click on Done You return to the main Configuration Manager window Enabling Compression for PVCs To use data compression with frame relay first select WCP from the Protocols menu and make sure the Compression Control attribute or parameter is set to Enable You can use either the BCC or Site Manager to enable compression for PVCs 3 32 117376 C Rev 00 Using the BCC Customizing Frame Relay The default value for the wcp control command is enabled To disable compression for this virtual circuit 1 Navigate to the prompt for the PVC that you want to edit For example box serial 1 2 frame relay 1 2 boston pvc 1 2 51 2 Enter the wcp control command and the value disabled wcp control disabled For example the following command line disable compression for this virtual circuit pvc 1 2 51 wep control disabled pvc 1 2 51 amp Using Site
153. ing connect Retransmit setup Clear call message call proceeding or message restart release message timer T303 T305 30sec Disconnect Outgoing Incoming disconnect Network sends Timer not indication disconnect or release message release message restarted message T308 4 sec Release Outgoing Incoming release or Retransmit Call cleared request release release complete release message timer not message message restart timer T308 restarted T310 10 sec Incoming Incoming call Incoming connect or Call cleared Timer not call proceeding disconnect message restarted proceeding message T322 4 sec Any state Outgoing status Incoming status Retransmit status Retransmit inquiry message disconnect release inquiry message status inquiry or release complete restart timer T322 message message restart timer T322 2 12 117376 C Rev 00 Message Processing Frame Relay Overview Table 2 4 shows how the router software handles various types of message exchanges Table 2 4 Message Processing Message Type Message Processing Call setup When the software receives a setup message it performs several validations before it can deliver the message to the called subscriber and return a call proceeding message to the calling subscriber The software must verify that all of the information fields in the message are in the proper order all of the mandatory elements are present an
154. istics of data the local router transmits while the incoming values define characteristics of data the local router receives If the local router receives a call the outgoing values define characteristics of data the local router receives while incoming values define characteristics of data the local router transmits Table 2 6 explains this further Table 2 6 Incoming and Outgoing Attribute or Parameter Values Call Originator Direction of Data that Apply Local router Outgoing to remote router Outgoing Incoming from remote router Incoming Remote router Incoming to local router Outgoing Outgoing from local router Incoming Traffic Shaping Considerations Traffic shaping is best used at central offices to prevent the big pipe from sending too much data too quickly to remote sites with little pipes Let this principle guide your decisions about how to use traffic shaping on your network 117376 C Rev 00 2 29 Configuring Frame Relay Services CIR Configuration Guidelines Consider the following when you configure traffic shaping In general the value you assign to the B should equal 1 4 of the CIR to avoid excessive queuing and dropped packets If however you are sending frames that exceed the size of the B data travels very slowly because the router must use multiple time periods to accommodate the packet size and avoid exceeding the CIR If setting the B to 1 4 of the CIR yields a value
155. it is configured but not active e xoff Specifies whether the router ignores or observes the XOFF bit in LMI e control Circuit is a control VC e Starting Circuit is a starting VC Type of circuit configured on the interface pvc PVC was statically configured e dynamic pvc PVC was dynamically learned e sSvc VC is an SVC Indicates that you can use the same PVC for both routing and bridging The service name associated with this PVC services interface lt name gt service lt name gt Displays general information about all frame relay services including the number of VCs and SVC configurations This command allows for the following command filters and filter arguments interface name Displays only frame relay services on the specified interface service lt name gt Displays only frame relay VCs on the specified service C 8 117376 C Rev 00 Monitoring Frame Relay Using BCC show Commands The output includes the following information Interface The interface on which the frame relay circuit resides Service Name Identifies the unique name assigned to the service Total Number of VCs Total number of VCs configured on this interface Number of VCs Static Total number of static VCs configured on this interface Number of VCs Dynamic Total number of PVCs dynamically learned Number of VCs SVOs Total number of SVCs configured on this interface Number of VCs Active Total num
156. ith window For information about the Bay Networks proprietary implementation of multiline see page 2 35 Customizing SVCs Use the sections that follow for guidance on customizing SVCs to meet the requirements of your network Adding Service Records for SVCs A service record is a data structure that allows flexible grouping and characterization of VCs To configure service records for SVCs you Provide a name for the service record e Enable SVC services e Provide an address for the SVC 117376 C Rev 00 3 35 Configuring Frame Relay Services You can also Enable call screening and blocking Customize the inactivity timer and mode You can use either the BCC or Site Manager to configure service records for SVCs Using the BCC To use the BCC to configure SVCs 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 Enter the service command and a service name in this format service servicename line number 0 circuit number For example the following command line creates the service record 8 0 32 frame relay 1 2 service myservice 8 0 32 myservice 8 0 32 Enter the svc control command and the value enabled svc control enabled For example the following command line enables SVCs on this service record myservice 8 0 32 svc control enabled myservice 8 0 32 Enter the svc local address command and the address For example the following
157. ived Over conned o te within the inactivity e Any SVCs configured as adjacent hosts that are not mer inter val the SVC connected will remain will be disconnected disconnected SVCs will not be connected in order to send RIP packets Disabled Enabled or Both RIP timer not Not applicable RIP is If no packets are trans Disabled Directions applicable disabled mitted AND no packets RIP is dis are received within the abled inactivity timer interval the SVC will be discon nected SOAS Aejoy ewes 104 jueuieBeue N dIY vd 00 eu O 9ZEZIL Table B 1 RIP Parameters continued RIP packets will be sent over connected SVCs e Any SVCs configured as adjacent hosts that are not connected will be connected in order to send RIP packets IP or IPX RIP Frame Relay Frame Relay IP or IPX SVC Broadcast SVC Inactivity Inactivity Timer Inactivity Timer RIP Enable Enable Timer Mode RIP Timer RIP Timer Functionality Functionality Enabled Enabled Either Inactivity gt When the RIP timer RIP packets will refresh Direction RIP expires the transmit inactivity RIP packets will be sent timer If no packets are oer connected VCs received within the inac e Any SVCs configured as ae adjacent hosts that are not IVIty timer inter val the connected will be SVC will be discon connected in order to send nected RIP packets Enabled Disabled Either Inactivity
158. k node to gather address information This process increases broadcast traffic across the network 2 18 117376 C Rev 00 Frame Relay Overview To reduce broadcast traffic for all protocols you can configure static routes and adjacent hosts at the protocol level This eliminates the need for the router to perform address resolution To reduce traffic associated specifically with VINES address resolution you can configure Inverse ARP Inverse ARP is the default for IP over frame relay Refer to the appropriate protocol manual for more information about static routes adjacent hosts and Inverse ARP Table 2 5 lists how the router handles address resolution for each protocol and whether or not you can reduce broadcast traffic by modifying the address resolution configuration Table 2 5 How Protocols Handle Address Resolution How Router Performs Protocol Address Resolution Configuration Requirements Bridge including source route Automatic None IP ARP Configure ARP or Inverse ARP Configure Inverse ARP DECnet IV Automatic None VINES ARP None for ARP or Inverse ARP Inverse ARP is the default for frame relay Internet Packet Automatic None Exchange IPX Xerox Networking Automatic None System XNS AppleTalk AppleTalk ARP None Address Resolution for SVCs For SVCs adjacent host configuration including either an E 164 or X 121 address eliminates the need for the router to do addr
159. l Party Type of Number Configuration Manager Protocols Frame Relay Services International Unknown International Specifies the type of number the local caller uses To allow the caller to use an international type number accept the default International Otherwise choose Unknown 1 3 6 1 4 1 18 3 5 9 9 5 1 21 117376 C Rev 00 A 37 Configuring Frame Relay 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 SVC Call Block Configuration Manager gt Protocols gt Frame Relay gt Services None None Inbound Outbound All Allows you to block certain types of calls on the SVC Choose the type of call blocking you want this SVC to use 1 3 6 1 4 1 18 3 5 9 9 5 1 22 SVC InScreening Disable Configuration Manager gt Protocols gt Frame Relay gt Services Disable Enable Disable Allows you to screen incoming calls on this SVC If you do not want to screen incoming calls accept the default Disable To screen calls choose Enable 1 3 6 1 4 1 18 3 5 9 9 5 1 23 SVC InScreening Usage Configuration Manager gt Protocols gt Frame Relay gt Services Include Include Exclude Enables you to allow or disallow calls from numbers in associated SVC option records To allow these calls
160. lapf receive transmit error traffic lt name gt type pvc dynamic pvc svc interface lt name gt shaping high normal low sum dlci signalling receive transmit interface lt dlci gt interface lt name gt service lt name gt lt name gt dicmi interface lt name gt errors interface lt name gt C 16 117376 C Rev 00 Monitoring Frame Relay Using BCC show Commands vcs dlci dici interface lt name gt service lt name gt type pvc dynamic pvc svc Displays inbound and outbound statistics for frame relay VCs This command allows for the following command filters and filter arguments dici dici interface lt name gt service lt name gt Displays only VCs with the specified DLCI Displays only VCs configured on the specified interface Displays only VCs on the specified service type pvc dynamic pvc Displays information about only the type of VC svc The output contains Interface DLCI Inbound Frames Inbound Drops Outbound Frames Outbound Discard FECN BECN configured pvc shows only frame relay VCs that are statically configured PVCs dynamic pvc shows only VCs that are dynamically learned PVCs e svc shows only VCs that are SVCs the following information Interface on which the frame relay VC resides Specifies the PVC identification number that the frame relay
161. ll be disconnected disconnected SVCs will not be connected in order to send RIP packets Disabled Enabled or Either RIP timer not Not applicable RIP is If no packets are trans Disabled Direction applicable disabled mitted OR no packets are RIP is dis received within the inac abled tivity timer interval the SVC will be disconnected Enabled Enabled Transmit Inactivity gt When the RIP timer RIP packets will refresh RIP expires the transmit inactivity timer any connected SVCs will never discon nect due to inactivity SOAS e 8H ewes 10J jueuieBeue N dlH 00 eH O 9ZEZI 9 4 Table B 1 RIP Parameters continued RIP packets will be sent over connected SVCs e Any SVCs configured as adjacent hosts that are not connected will remain disconnected SVCs will not be connected in order to send RIP packets IP or IPX RIP Frame Relay Frame Relay IP or IPX SVC Broadcast SVC Inactivity Inactivity Timer Inactivity Timer RIP Enable Enable Timer Mode RIP Timer RIP Timer Functionality Functionality Enabled Disabled Transmit Inactivity gt When the RIP timer RIP packets will refresh RIP expires the transmit inactivity RIP packets will be sent timer any connected ough comnecieg SVG SVCs will never discon Any SVCs configured as athe adjacent hosts that are not ct due to inactivity connected will remain disconnected SVCs will not be connected in ord
162. ltiline This command allows for the following command filters and filter arguments dici lt dici gt Displays only VCs with the specified DLCI name multiline name Displays only multiline PVCs or services on the specified frame relay multiline The output contains the following information Multiline Name Name of the multiline circuit Interface Interface on which the multiline circuit resides Service Name Service name associated with the multiline Number of VOs Total number of VCs on the multiline 117376 C Rev 00 C 15 Configuring Frame Relay Services multiline pvcs Displays PVCs that are priority information for active frame relay SVCs This command allows for the following command filters and filter arguments dici lt dici gt Displays only PVCs with the specified DLCI name multiline name Displays only multiline PVCs or services on the specified frame relay multiline The output contains the following information Interface Interface on which the frame relay SVC resides DLCI Name of the SVC associated with this circuit Service Name Service name associated with the multiline Multiline Name Name of the multiline circuit show frame relay stats The show frame relay stats option commands display statistical information about frame relay services The show frame relay stats command supports the following subcommand options ves dlci lt dlci gt interface lt name gt service
163. lue for the congestion timer 1 Navigate to the prompt for the SVC that you want to edit For example serial 3 2 frame relay 3 2 service 8 0 32 svc options toronto Enter the congestion timer command and the value you want the interface to use congestion timer integer integer is the length of time in seconds during which the router counts congestion notifications see Congestion Counter on 3 62 following If the router receives the number of congestion notifications you set in the Congestion Counter during this amount of time the router stops transmitting data Legal timer values are 0 5 1 1 5 2 2 5 3 3 5 4 4 5 and 5 seconds The default is 1 second For example the following command line sets a congestion timer of 2 5 seconds svc options toronto congestion timer 2 5 svc options torontof Congestion Counter To change the value for the congestion counter 1 Navigate to the prompt for the SVC that you want to edit For example serial 3 2 frame relay 3 2 service 8 0 32 svc options toronto 3 62 117376 C Rev 00 Customizing Frame Relay 2 Enter the congestion counter command and the value you want the interface to use congestion counter lt integer gt lt integer gt is the maximum number of congestion notifications the router can receive during the congestion timer period before it stops transmitting data Legal counter values are 1 to 500 notifications The
164. monitored events 1 Navigate to the dlcmi prompt For example box serial 1 2 frame relay 1 2 dlcmi 2 Enter the monitored events command and the value you want the network to use monitored events integer integer is the number of monitored events that together with the error threshold establishes a criterion to evaluate the quality of the router frame relay connection The legal values are 1 to 5000 events and the default is 4 For example the following command line sets the value at 10 events dlcmi 1 24 monitored events 10 dlcmi 1 2f Using Site Manager To specify error threshold and monitored events values Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a port configured for frame relay The Edit Connector window opens 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Interfaces The Frame Relay Interfaces window opens 4 Setthe following parameters using Help or the parameter descriptions that begin on page A 7 Polling Interval Full Enquiry Interval Error Threshold Monitored Events 3 10 117376 C Rev 00 Customizing Frame Relay Site Manager Procedure continued You do this System responds 5 Edit other parameters if you want and click on Apply 6 Click on Done You return to the main Configuration Manager window
165. mple frame relay 1 2 default service default service 1 2 Enter the svc control enable command This command creates an SVC Enter the svc local address command You have added an SVC to the default service record Repeat this procedure to add more SVCs according to the requirements of your network Using Site Manager To configure an SVC Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Set the SVC Support parameter to The SVC parameters become available Enable 1 8 117376 C Rev 00 Starting Frame Relay Site Manager Procedure continued You do this 5 Supply values for the following SVC parameters Use Help or the parameter descriptions in Appendix A SVC Local Party Number SVC Local Party Sub Address optional SVC Local Party Number Plan SVC Local Party Type of Number System responds 6 Click on Apply The SVC button replaces the Multiline button in the Frame Relay Service List window Configuring Adjacent Hosts for an SVC An adjacent host is a device on a locally attached network it may or may not be a router You configure a MAC address for each adjacent host that does not implement ARP or to preempt the AR
166. mple the following command line disables signaling signalling 3 2 state disabled signalling 3 2 Maximum SVCs Maximum SVCs indicates the maximum number of simultaneous switched virtual circuits allowed on the port The more SVCs you allow the larger the system memory required to support them To set the window size 1 Navigate to the signaling prompt For example box serial 1 2 frame relay 1 2 signalling 1 2 Enter the maximum svcs command and the value you want to use maximum svcs integer lt integer gt is the number of SVCs allowed Legal values are 1 to 2147483647 The default is 100 3 50 117376 C Rev 00 Setup Timer Customizing Frame Relay For example the following command line sets a maximum of 200 SVCs signalling 3 2 maximum svcs 200 signalling 3 2 Setup timer indicates the number of seconds allowed from the time the router sends a setup message to the called subscriber and receives a connect or call proceeding message from the called subscriber If a timeout occurs the router retransmits the setup message and restarts the timer If the timer expires a second time the call is cleared To set the setup timer 1 Navigate to the signaling prompt For example box serial 1 2 frame relay 1 2 signalling 1 2 Enter the setup timer command and the value you want to use setup timer integer integer is the number of seconds allowed Legal values are 2 to 90 seconds The de
167. n of 2 8 TEL assigned state 2 9 timeout timer 2 0 2 10 timer 2 12 timer recovery state 2 9 unnumbered control frames 2 9 LAPF parameters editing 3 44 LAPF retransmission timer 2 9 link management call present state 2 12 call proceeding processing 2 13 call setup processing 2 12 2 13 categories of LAPF management frames 2 9 connect message processing 2 13 disconnect indication state 2 12 disconnect message 2 13 exchange identification XID frames 2 9 incoming call proceeding state 2 12 LAPF operational states 2 9 LAPF timeout and retransmission timers 2 9 2 10 numbered information frames 2 9 numbered supervisor frames 2 9 release complete message 2 14 release message 2 14 release request state 2 12 SVC signaling 2 8 2 11 timer T303 2 12 T305 2 12 T308 2 12 T310 2 12 T322 2 12 unnumbered control frames 2 9 disconnect indication state 2 12 LL Core In Committed Burst parameter A 50 disconnect message processing 2 13 exchange identification XID frames 2 9 incoming call proceeding state 2 12 N200 retransmission timeout 2 10 numbered supervisory frames 2 9 operational states 2 9 release request state 2 12 retransmission timeouts 2 10 retransmission timer 2 10 setup processing 2 13 SVC signaling 2 8 2 11 T200 retransmission timeout 2 10 T203 retransmission timeout 2 11 LL Core In Excess Burst parameter A 51 LL Core In Throughput parameter A 48 LL C
168. nce number received in the last DL CMI message status enquiry Whether the station requests a full status report from the network or requests only a sequence number verification from the network Number of missing status messages not received from a status enquiry 117376 C Rev 00 C 19 Configuring Frame Relay Services lapf receive transmit error traffic interface lt name gt lapf receive Displays LAPF receive transmit traffic and error statistics for frame relay interfaces Displays LAPF receive statistics for frame relay interfaces This command allows for the following command filter and filter argument interface lt name gt Displays only frame relay interfaces configured on the specified interface The output contains the following information Interface Window SABME UA DISC DM FRMR REJ RNR RR XID Interface on which the frame relay VC resides Number of outstanding signalling messages allowed Set Asynchronous Balanced Mode Extended SABME command that initiates multiple frame operation Unnumbered acknowledgment UA is a response sent by a station upon receipt of a SABME or DISC command Disconnect DISC is a command that initiates the release of multiple frame operation Disconnect mode DM indicates the collision of commands and responses that prevent the initiation of multiple frame operations Frame Reject FRMR indicates errors encountered that c
169. network uses to direct data Total number of frames that the interface received Total number of outbound frames dropped because the VC is inactive Total number of frames that the router sent out on this interface Total number of frames dropped because the VC is inactive Number of outbound forward explicit congestion notifications Number of outbound backward explicit congestion notifications 117376 C Rev 00 C 17 Configuring Frame Relay Services shaping high normal low sum dlci lt d ci gt interface lt name gt service lt name gt Displays high queue normal queue low queue and summary traffic shaping statistics for frame relay VCs shaping high Displays high queue outbound traffic shaping statistics for frame relay VCs shaping normal Displays normal queue outbound traffic shaping statistics for frame relay VCs shaping low Displays low queue outbound traffic shaping statistics for frame relay VCs shaping sum Displays a summary of traffic shaping statistics for frame relay VCs This command allows for the following command filters and filter arguments dici dici Displays only VCs with the specified DLCI interface lt name gt Displays only VCs configured on the specified interface service lt name gt Displays only VCs on the specified service The output contains the following information Interface DLCI Frames Inbound Drops Frames Clipped from Queue Maximum F
170. ng Frame Relay Services DCEs Router __ M He FRAp DTE J DCE FR0016A Figure 2 13 PVC Pass Through Figure 2 13 shows a router with an Ethernet interface and two frame relay interfaces The frame relay interface to the frame relay network is a DTE right side of illustration The frame relay interface to the FRAD is a DCE left side The router delivers all IP frames inbound on DLCI 50 to the IP interface It also delivers all IP frames inbound on DLCI 30 to the IP interface The router delivers all other traffic inbound on DLCI 30 via the PVC pass through system to DLCI 20 which transmits the data to the FRAD All data inbound on DLCI 20 is delivered via the PVC pass through system to DLCI 30 which transmits the data to the frame relay network PVC pass through works with both leased line and dial on demand interfaces It works with Bay Networks data compression congestion control and traffic shaping It does not work with data encryption which requires a direct mode PVC Frame Relay Dial Services Frame relay works with Bay Networks dial on demand and dial backup services For information about and directions for configuring dial services see Configuring Dial Services 2 38 117376 C Rev 00 Frame Relay Overview Configuring Synchronous Lines for Frame Relay If you enable frame relay on a circuit Site Manager automatically sets the followi
171. ng synchronous line parameters Table 2 8 Table 2 8 Synchronous Line Parameters for Frame Relay Parameter Value BofL Disable Promiscuous Enable Service Transparent WAN Protocol Frame Relay For more information on these parameters refer to Configuring WAN Line Services For More Information About Frame Relay For more information about frame relay consult the following documents American National Standards Institute T1 617 1991 Integrated Services Digital Network ISDN Digital Subscriber Signalling System No I DSS1 Signalling Specification for Frame Relay Bearer Service Washington D C June 1991 T1 617 Annex D 1991 Additional Procedures for Permanent Virtual Connections PVCs Using Unnumbered Information Frames Washington D C June 1991 T1 618 1991 Integrated Services Digital Network ISDN Core Aspects of Frame Protocol with Frame Relay Bearer Service Washington D C June 1991 Bradley T C Brown and A Malis Multiprotocol Interconnect over Frame Relay RFC 1490 Menlo Park California Network Information Center NIC SRI International January 1992 Digital Equipment Corporation et al TISI Standards based Frame Relay Specification with Common Enhancements Document Number 001 208966 Revision 1 0 September 1990 117376 C Rev 00 2 39 Configuring Frame Relay Services FRF4 Frame Relay User to Network SVC Implementation Agreement January 5 1994 pl
172. nnect an active SVC Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens Choose the service record that includes the SVCs you want to disconnect Click on the SVCs button Click on the Active Calls button The Frame Relay SVC Options List for Service window opens The Frame Relay SVC Active Calls window opens Choose the DLCI of the SVC you want to disconnect Click on Delete Click on Yes The SVC Active Call Delete Query window opens You have disconnected the SVC You return to the Frame Relay SVC Active Calls window 10 Click on Done You return to the Frame Relay SVC Options List for Service window 11 Click on Done You return to the Frame Relay Service List window 12 Click on Done You return to the Main Configuration Manager window Editing LAPF Parameters for SVCs Frame relay LAPF services support the reliable transfer of multiple numbered frames over SVCs You can use either the BCC or Site Manager to customize LAPF 3 44 117376 C Rev 00 Using the BCC Customizing Frame Relay You can edit the following parameters for LAPF in the BCC as described in this section State Station Type Initiation Mod
173. ns Function Instructions MIB Object ID LL Core In Committed Burst Configuration Manager select a connector gt Edit Connector window gt Edit Circuit gt Services gt Frame Relay Service List window gt SVCs gt Add 0 0 to 21447463647 b s Specifies the incoming committed burst size This is the maximum number of bits that a VC can receive during the VC s burst period Tc when congestion is occurring To enable traffic shaping the Burst parameters and the Throughput parameters CIR must both be greater than zero The Core In Committed Burst Bc value should be lower than the Core In Throughput value Choose a value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 25 LL Core Out Excess Burst Configuration Manager select a connector Edit Connector window Edit Circuit Services Frame Relay Service List window SVCs Add 0 0 to 21447463647 b s Specifies the outgoing excess burst size This value is added to the Core Out Committed Burst value to determine the maximum number of bits that may be transmitted during the VC s burst period when there is no congestion The Core Out Excess Burst plus the Core Out Committed Burst must be less than or equal to the line speed Choose a value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 26 A 50 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Opti
174. ntly configured Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens Click on Frame Relay Choose circuit click on Delete The Frame Relay menu opens Circuit List window opens Choose circuit click on Delete Delete Circuit window opens Click on Delete The Frame Relay List window opens oo Pr a h Click on Done The Configuration Manager window opens To delete frame relay from all circuits on which it is currently configured Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens 2 Click on Frame Relay The Frame Relay menu opens 3 74 117376 C Rev 00 Customizing Frame Relay Site Manager Procedure You do this 3 Click on Delete Frame Relay System responds A confirmation window prompts Do you RI EALLY want to delete Frame Relay 4 Click on OK The confirmation window closes revealing the Configuration Manager window 117376 C Rev 00 3 75 Appendix A Site Manager Parameters These topics define frame relay parameters Topic Page Interface Parameters A 1 SVC LAPF Parameters A 11 Parameters for PVCs A 22 SVC Service Record Parameters A 34
175. ny SVCs configured as 2 adjacent hosts that are not nect due to inactivity connected will be connected in order to send RIP packets Enabled Disabled Both Inactivity gt When the RIP timer RIP packets will refresh Directions RIP expires the transmit inactivity RIP packets will be sent over connected SVCs Any SVOCs configured as adjacent hosts that are not connected will remain disconnected SVCs will not be connected in order to send RIP packets timer any connected SVCs will never discon nect due to inactivity SOAS Aejoy ewes 10J jueuieBeue N dIY 00 eH O 9ZEZI d Table B 1 RIP Parameters continued IP or IPX RIP Frame Relay Frame Relay IP or IPX SVC Broadcast SVC Inactivity Inactivity Timer Inactivity Timer RIP Enable Enable Timer Mode RIP Timer RIP Timer Functionality Functionality Enabled Enabled Both Inactivity lt When the RIP timer If no non RIP packets are Directions RIP expires transmitted AND no RIP packets will be sent packets are received over connecied SVGS within the inactivity e Any SVCs configured as adjacent hosts that are not timer interval the SVC connected will be will be disconnected connected in order to send RIP packets Enabled Disabled Both Inactivity lt When the RIP timer If no non RIP packets are Directions RIP expires transmitted AND no RIP packets will be sent packets are rece
176. o configure hybrid mode Site Manager Procedure You do this System responds 1 In the Configuration Manager window The Edit Connector window opens click on a port configured for frame relay 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Services The Frame Relay Service List window opens 4 Click on PVCs The FR PVC List for Service window opens 5 Set the Hybrid Mode parameter to ON See Help or the parameter description on page A 28 6 Edit other parameters if you want and click on Apply 7 Click on Done You return to the main Configuration Manager window Configuring PVC Pass Through To configure PVC pass through service you create a mapping between PVCs on different lines You can use a PVC for only one pass through mapping 3 20 117376 C Rev 00 To configure PVC pass through Customizing Frame Relay Site Manager Procedure You do this System responds 1 Configure at least two PVCs using the directions in the previous sections Remember that to use PVC pass through you must configure the PVCs you want to map to each other on different lines Set the Hybrid Mode parameter to ON for each of the PVCs that you want to configure for pass through following the procedure in the previous section Edit other parameters if you want and click on Apply The Select Protocols window opens Choose FR PVC Pa
177. od before it stops transmitting data Legal counter values are 1 to 500 notifications The default is 20 3 60 117376 C Rev 00 Customizing Frame Relay For example the following command line sets a congestion counter of 30 notifications frame relay 1 2 congestion counter 30 frame relay 1 2 Congestion Method To change the value for the congestion method 1 Navigate to the prompt for the interface that you want to edit For example box serial 1 2 frame relay 1 2 Enter the congestion method command and the value you want the interface to use congestion method value Legal values are throttle then shutdown shutdown the default throttle For example the following command line sets a congestion method of throttle frame relay 1 24 congestion method throttle frame relay 1 2 Configuring Congestion Control for Individual SVC Options To configure congestion control for an SVC Congestion Control 1 Navigate to the prompt for the SVC option you want to edit For example serial 3 2 frame relay 3 2 service 8 0 32 svc options toronto Enter the congestion control command and the value enabled congestion control enabled 117376 C Rev 00 Configuring Frame Relay Services For example the following command line enables congestion control for this frame relay interface svc options toronto congestion control enabled svc options toronto Congestion Timer To change the va
178. of traffic because WCP compresses data at the rate it receives it e If you also set the Congestion Method parameter to throttle the router will queue traffic if congestion occurs and thus prevent exceeding the CIR e Congestion may occur if compression histories are not in sync and WCP has to resend packets If WCP retransmits many packets it may exceed the CIR 117376 C Rev 00 2 31 Configuring Frame Relay Services Oversubscribing the Interface The CIRs that you configure are based on an average peak rate for the VCs on the network If all VCs with traffic shaping try to send data simultaneously they may exceed the capacity of the interface If you oversubscribe the interface traffic shaping will still enforce the CIR but there may be additional latency for reserved flows VCs without traffic shaping will send data after traffic shaped VCs Queue Limits and Data Clipping Bay Networks routers maintain buffers for each traffic shaped VC Each buffer can hold one frame that the router cannot send because of congestion The router divides the number of buffers on the interface Some key facts specific to buffers are e The default number of buffers is 200 per interface To change the buffer number you can use the Technician Interface e The software divides the number of buffers on the interface by the number of traffic shaped VCs giving each VC the same number of buffers Therefore if you have 10 traffic shaped VCs per in
179. oftware acquired for use within the European Community If Licensee uses the Software within a country in the European Community the Software Directive enacted by the Council of European Communities Directive dated 14 May 1991 will apply to the examination of the Software to facilitate interoperability Licensee agrees to notify Bay Networks of any such intended examination of the Software and may procure support and assistance from Bay Networks 7 Term and termination This license is effective until terminated however all of the restrictions with respect to Bay Networks copyright in the Software and user manuals will cease being effective at the date of expiration of the Bay Networks copyright those restrictions relating to use and disclosure of Bay Networks confidential information shall continue in effect Licensee may terminate this license at any time The license will automatically terminate if Licensee fails to comply with any of the terms and conditions of the license Upon termination for any reason Licensee will immediately destroy or return to Bay Networks the Software user manuals and all copies Bay Networks is not liable to Licensee for damages in any form solely by reason of the termination of this license 8 Export and Re export Licensee agrees not to export directly or indirectly the Software or related technical data or information without first obtaining any required export licenses or other governmental approvals With
180. ols menu in the Configuration Manager menu bar The Protocols menu opens Click on Frame Relay The Frame Relay menu opens Click on Services The Frame Relay Service List window opens Choose the service record for which you want to configure inactivity values 117376 C Rev 00 3 57 Configuring Frame Relay Services Site Manager Procedure continued You do this System responds 5 Click on SVCs The Frame Relay SVC Options List window opens 6 Choose the SVC option record that has values in the following parameters that match the remote end of the SVC connection Remote Party Number Remote Party SubAddress optional Remote Party Number Plan Remote Party Type of Number 7 Set the following parameters using Help or the parameter descriptions that begin on page A 44 Inactivity Timer Inactivity Mode Timer Click on Apply Click on Done You return to the Frame Relay Service List window 10 Click on Done You return to the main Configuration Manager window Controlling Congestion for SVCs Congestion occurs when a node receives more frames than it can process or sends more frames than the transmission line can transport When you enable congestion control the router receives congestion notification messages from the SVC experiencing congestion and drops all outbound traffic destined for that SVC until it no longer receives cong
181. ommitted burst out These are respectively the maximum number of bits that a VC can receive and transmit during the VC s burst period when congestion is occurring To enable traffic shaping these attributes and the CIR attributes must be greater than zero The values in the committed burst attributes should be lower than the CIR attributes To change the value for committed burst in or committed burst out 1 Navigate to the prompt for the SVC that you want to edit For example serial 1 2 frame relay 1 2 service 8 0 32 svc options toronto 2 Enter the committed burst in command and the integer value you want the PVC to use committed burst in integer Or committed burst out integer integer is the number of bits the router can transmit per time interval Legal values are 0 to 2 147 483 647 bits The default is 0 117376 C Rev 00 3 65 Configuring Frame Relay Services For example the following command line sets a committed burst in value of 4 000 bits svc option tronto committed burst in 4000 svc option tronto Excess Burst For SVCs you configure two attributes to define excess burst excess burst in and excess burst out The values for excess burst in combined with committed burst in and for excess burst out combined with committed burst out define respectively the maximum number of bits that a VC can receive and transmit during the VC s burst period when no congestion is occurring The excess
182. on this SVC accept the default disabled and do not set the CIR committed burst and excess burst attributes e To use traffic shaping and accept the quality of service QoS the network provides set this attribute to enabled and do not configure the CIR committed burst and excess burst attributes e To use traffic shaping and negotiate QoS with the network set this command to enabled and also set the CIR committed burst and excess burst attribute attributes e To prevent the router from enforcing the CIR set this command to disabled and also set the CIR committed burst and excess burst attributes To set this command 1 Navigate to the prompt for the SVC that you want to edit For example serial 1 2 frame relay 1 2 service 8 0 32 svc options toronto 2 Enter the traffic shaping control command and set the value to enabled Legal values are enabled and disabled The default is disabled For example the following command line enables traffic shaping on this SVC svc option tronto traffic shaping control enabled svc option tronto 3 68 117376 C Rev 00 Using Site Manager To enable traffic shaping Customizing Frame Relay Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens Click on Frame Relay The Frame Relay menu opens Click on Services The Frame Relay Service List
183. onfiguring Congestion Control for an literas n 3 23 Configuring Congestion Control for Individual PVCS sseessssss 3 25 Using Trafic Shaping Vh P VES cassiera D ote ER Eee ido EE Poeta Roe isa sire eH REC 3 29 Figli Quete EROR aire aea d E e ene ven tO D e e Petra ur ug 3 29 Low Queue Llmit sirens Mm m rioris M Committed Buret qe 3 30 Ee DIESE A A E du eur dsr unr counsels data artes i direi diim Ka dip dd tem hts 3 31 CIR Throughput eti T bostis eens Aos ea P oitis CLE Enabling Compression for PVCS sessi eer bri ko PERO a LER U REY REA EY FRE YER 3 32 Grouping Service Records for Multiline Mode sese 3 34 Removing Muniline GErviCES e AAEE 3 35 Gustonmneng a VS aaa ERU REDE a Por EN Habt pd pp ed dba aba E REN GU Adding Service Records for SVCs ips rere T T T TT Raa soe Deleting Service Recorde Tor SVS iaseccetrascatetenectaitpotesepasi sati iaaa 3 37 viii 117376 C Rev 00 Gall Soresrning and BICI sissies cost rpha prc n news ada aca o dod ada UR EO cuts Call Black DION sutas adckie onde pd xa D bd dA KB ERE Ra 3 39 cU IE I II Rem 3 39 UIN cgi e em ETE sp ena ates 3 40 Adding SVC Options to Service Records See ere E re NUIG 3 41 Disabling SVGS e 3 42 Econ DUET ACIE SVGS escas biasana adu kun O SEE Re DOCE Kid RE MEER abia 3 44 Editing LAPF Parameters for SVOs
184. ongestion Control parameter to Inherit the PVC uses DLCMI for congestion control not the value of this parameter 1 3 6 1 4 1 18 3 5 9 9 2 1 28 A 30 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Congestion Method Configuration Manager gt Protocols gt Frame Relay gt Services gt PVCs Inherit Shutdown Throttle Throttle Then Shutdown Inherit Specifies the method of congestion control Inherit specifies that this VC will use the value of the interface Congestion Method parameter Shutdown terminates the VC when congestion occurs Throttle queues traffic when congestion occurs traffic resumes when congestion alleviates This option is valid only when traffic shaping is enabled Throttle Then Shutdown first queues traffic when congestion occurs and then terminates the VC if throttling does not alleviate congestion This option is valid only when traffic shaping is enabled Choose a setting appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 2 1 33 Compression Control Configuration Manager Protocols Frame Relay Services PVCs Enable Enable Disable Enables or disables data compression for this service record To use data compression for this service record accept the default Enable Otherwise select Disable 1 3 6
185. ongestion count to 3 In this case if an interface receives 3 FECNs or BECNs within 0 5 second the node stops sending frames although it continues to receive frames for this PVC If the interface receives no FECNs or BECNs during the next 0 5 second the router resumes transmission For instructions on configuring the congestion attributes or parameters see Controlling Congestion for PVCs on page 3 22 and Controlling Congestion for SVCs on page 3 58 If you enable congestion control and also enable traffic shaping you can throttle which means queue congested traffic rather than drop it by choosing the value Throttle in the Congestion Method attribute or parameter for a description of the Congestion Method parameter see page A 11 Traffic Shaping Traffic shaping relieves bottlenecks in topologies with high speed connections to the central site and low speed connections at remote sites as in Figure 2 8 on page 2 20 Committed information rate enforcement and quality of service are the major components of Bay Networks traffic shaping Committed Information Rate The committed information rate CIR is the rate at which the network supports data transfer under normal operations Its name is descriptive you have a contract with your carrier who has committed to providing a given throughput here called the committed information rate The CIR is measured in bits per second You configure this value that the carrier provides
186. ons Function Instructions MIB Object ID Site Manager Parameters LL Core In Excess Burst Configuration Manager select a connector gt Edit Connector window gt Edit Circuit gt Services gt Frame Relay Service List window gt SVCs gt Add 0 0 to 21447463647 b s Specifies the incoming excess burst size This value is added to the Core In Committed Burst value to determine the maximum number of bits that may be transmitted during the VC s burst period when there is no congestion The Core In Excess Burst plus the Core In Committed Burst must be less than or equal to the line speed Choose a value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 27 Congestion Disable Configuration Manager select a connector gt Edit Connector window gt Edit Circuit gt Services gt Frame Relay Service List window gt SVCs gt Add Inherit Enable Disable Inherit Specifies whether and how this SVC will use congestion control Inherit means that this SVC uses the value in the interface Congestion Control parameter Enable activates congestion control for this SVC regardless of the setting in the Interface parameter If you enable congestion control the router drops all outbound traffic from this SVC while congestion is occurring Disable means that the SVC will not use congestion control Accept the default or choose another value appropriate to your network 1 3 6 1 4 1 18 3 5 9 9 10 1 28 117376 C
187. or example the following command line creates a service record with the To add a service record Site Manager Procedure You do this System responds 1 In the Configuration Manager window click on a port configured for frame relay The Edit Connector window opens enter the DLCI number Note that the Service Name parameter is already filled in See pages A 25 and A 24 for descriptions of these parameters 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Services The Frame Relay Service List window opens 4 Click on Add The Frame Relay Service Add window opens 5 Click on the DLCI Number parameter and 3 12 117376 C Rev 00 Customizing Frame Relay Site Manager Procedure continued You do this System responds 6 Click on OK The Frame Relay Service List window reopens 7 Add more service records as your network The Frame Relay Circuit Definition requires by repeating steps 4 through 6 window opens When you are finished click on Done Click on Done again You return to the Configuration Manager window Deleting Service Records for PVCs You can use either the BCC or Site Manager to delete service records for PVCs Using the BCC 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 Enter the delete command and the service command and name in this format
188. ore Min In Throughput parameter A 49 LL Core Min Out Throughput parameter A 48 LL Core Out Committed Burst parameter A 49 LL Core Out Excess Burst parameter A 50 LL Core Out Throughput parameter A 48 LMI Local Management Interface 2 7 3 2 A 5 117376 C Rev 00 Index 3 management protocols See DLCMI management type selecting 3 2 Max SVCs parameter A 18 Mgmnt Type parameter A 5 monitored events 3 7 Monitored Events parameter A 8 moving PVCs 2 15 3 17 Multicast parameter A 9 A 27 multicast enabling 3 18 multiline configuring 3 34 description of 2 35 removing 3 35 traffic distribution over lines 2 36 Multiline Algorithm to Choose Line parameter A 32 A 34 N N200 retransmission timeout 2 10 N200 Max Retries parameter A 16 N201 Max Frame Size parameter A 16 N322 Status Enq Retry Max parameter A 21 network congestion 2 22 numbered information frames 2 9 numbered supervisory frames 2 9 O Options Name parameter A 41 oversubscribing the interface with traffic shaping 2 32 overview of frame relay 2 2 P packet structure of frame relay packet 2 5 pass through 2 37 polling interval 3 7 Polling Interval parameter A 7 Index 4 present state 2 12 protocol prioritization and multiline 2 37 definition of 2 21 with traffic shaping 2 25 protocol priority and inactivity timer interaction 2 35 PVC pass through 2 37 configuring 3 20 PVCs adding 3 14 con
189. ot applicable RIP is If no packets are received Disabled applicable disabled within the inactivity RIP is dis timer interval the SVC abled will be disconnected SOAS Aejoy ewes 10J jueuieBeue N dIY Appendix C Monitoring Frame Relay Using BCC show Commands Use the BCC show frame relay command to display configuration and statistical information about frame relay services For information about show command syntax see Using the Bay Command Console Online Help for show Commands You can display a list of available command options by entering show lt option gt without additional options or with a question mark as an option For example entering show frame relay at the BCC prompt displays the list of all show frame relay keyword subcommand options 117376 C Rev 00 C 1 Configuring Frame Relay Services Commands for Frame Relay The show frame relay lt container gt command displays information about the router s frame relay configuration Table C 1 lists all show frame relay commands The filter flag and filter arguments are options that you can use with each keyword also called subcommand Table C 1 Frame Relay Show Commands lt container gt lt keyword gt lt arguments gt lt filter_flags gt lt filter_arguments gt frame relay summary lt none gt state lt interface_name gt type backup normal primary demand frame relay vcs lt none gt
190. otocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Interfaces The Frame Relay Interface List window opens 4 Click on the LAPF button The Frame Relay LAPF Parameters window opens 5 Edit the following parameters Use Help or the parameter descriptions in Appendix A as a guide Enable Station Type Action Initiate 7200 Base Timer 7203 Idle Timer N200 Max Retries N201 Max Frame Size K Max Window Size 6 When you are finished click on OK You return to the Frame Relay Interface List window 7 Click on Done You return to the main Configuration Manager window 117376 C Rev 00 3 49 Configuring Frame Relay Services Editing Signaling Attributes or Parameters for SVCs A DTE and the frame relay network exchange various type of signaling messages including incoming and outgoing call setup call proceeding connect and disconnect and release messages You can use either the BCC or Site Manager to customize signaling attributes or parameters Using the BCC To edit signaling attributes State State controls whether signaling is enabled or disabled To change this value 1 Navigate to the signaling prompt For example box serial 1 2 frame relay 1 2 signalling 1 2 Enter the state command and the value you want to use state value Legal values are enabled and disabled The default value is enabled For exa
191. out limiting the foregoing Licensee on behalf of itself and its subsidiaries and affiliates agrees that it will not without first obtaining all export licenses and approvals required by the U S Government i export re export transfer or divert any such Software or technical data or any direct product thereof to any country to which such exports or re exports are restricted or embargoed under United States export control laws and regulations or to any national or resident of such restricted or embargoed countries or ii provide the Software or related technical data or information to any military end user or for any military end use including the design development or production of any chemical nuclear or biological weapons 9 General If any provision of this Agreement is held to be invalid or unenforceable by a court of competent jurisdiction the remainder of the provisions of this Agreement shall remain in full force and effect This Agreement will be governed by the laws of the state of California Should you have any questions concerning this Agreement contact Bay Networks Inc 4401 Great America Parkway PO Box 58185 Santa Clara California 95054 8185 LICENSEE ACKNOWLEDGES THAT LICENSEE HAS READ THIS AGREEMENT UNDERSTANDS IT AND AGREES TO BE BOUND BY ITS TERMS AND CONDITIONS LICENSEE FURTHER AGREES THAT THIS AGREEMENT IS THE ENTIRE AND EXCLUSIVE AGREEMENT BETWEEN BAY NETWORKS AND LICENSEE WHICH SUPERSEDES ALL PRIOR OR
192. priority commands sets the priority of data required to add a connection it is a value the router requests it is not guaranteed The gain priority minimum command sets the lowest acceptable priority of data to add a connection This is a value below which the router will not create the SVC The keep priority command sets the priority of data required to maintain a connection This is a value the router requests it is not guaranteed The keep priority minimum command sets the lowest acceptable priority of data required to maintain a connection This is a value below which the router will disconnect the SVC To set X 213 priority values 1 Navigate to the prompt for the SVC that you want to edit For example box serial 1 2 frame relay 1 2 svc options toronto 2 Enter the command for the attribute you want to edit and the value you want the attribute to use The options are data priority integer data priority minimum integer gain priority integer gain priority minimum integer keep priority integer keep priority minimum integer The integer for all of these attributes is 0 to 15 with 0 as the lowest priority and 14 as the highest A value of 15 means unspecified 3 72 117376 C Rev 00 Customizing Frame Relay For example the following command line sets a data priority of 9 for SVC options svc options toronto data priority 9 svc options toronto Using Site Manager To set X 213 p
193. rame relay 1 2 service 4 0 32 Enter the pvc command and DLCI number in this format pvc DLCI number pvc DLCI number pvc DLCI numbers For example the following command line creates PVCs with DLCI numbers Note that the working context is now that of the PVC you made last 1 For example box serial 1 2 2 20 21 22 23 and 24 service boston pvc 20 pvc 21 pvc 22 pve 23 pve 24 pvc 3 2 24 Using Site Manager You can add PVCs either individually or in a range If you want to add one PVC enter one DLCI number If you want to add several PVCs enter the appropriate range of DLCI numbers in the format lt lowest DLCI number gt lt highest DLCI number gt To add PVCs Site Manager Procedure You do this 1 In the Configuration Manager window click on a port configured for frame relay System responds The Edit Connector window opens 2 Click on Edit Circuit The Frame Relay Circuit Definition window opens 3 Click on Services The Frame Relay Service List window opens 4 Click on PVCs The Frame Relay PVC List window opens 5 Click on Add The Frame Relay PVC Add window opens 117376 C Rev 00 3 15 Configuring Frame Relay Services Site Manager Procedure continued You do this 6 Click on the DLCI Number parameter and enter the DLCI number or if you want to add more than one PVC enter a range of numbers in the format low
194. rames in Queue Queue Limit Filter Dropped Frames Large Frames Interface on which the frame relay VC resides Name of the VC associated with this circuit Total number of frames that the router sends out this interface Total number of inbound frames dropped because the VC is inactive Number of high normal and low priority clipped frames Maximum number of frames stored in the queue Total number of buffers that the interface has to process frames Total number of frames dropped because of congestion Number of large frames 117376 C Rev 00 dicmi interface lt name gt Monitoring Frame Relay Using BCC show Commands Displays inbound and outbound statistics for frame relay DLCMIs This command allows for the following command filter and filter argument interface name Displays only DLCMI interfaces configured on the specified interface The output contains the following information Interface Maximum Number of VCs Current Number of VCs Sequence Counter Received Sequence Passive Sequence Passive Received Polls Polls Missing Interface on which the DLCMI resides Number of DLCMIs associated with this circuit Total number of DLCMISs configured on the router Next send sequence counter for DLCMI messages sent by the station Send sequence number received in the last DLCMI message This station s send sequence for answering the DLCMI message status enquiry The seque
195. release timer lt integer gt lt integer gt is the number of seconds allowed Legal values are 2 to 90 seconds The default is 4 For example the following command line sets a timer of 45 seconds signalling 3 2 release timer 45 signalling 3 2 Call Proceeding Timer Call proceeding timer indicates the number of seconds allowed from the time the router receives a call proceeding message to the time the router receives a connect or disconnect message In the event of a timeout the router clears the call To set the release timer 1 Navigate to the signaling prompt For example box serial 1 2 frame relay 1 2 signalling 1 2 2 Enter the call proceeding timer command and the integer value you want to use call proceeding timer lt integer gt 3 52 117376 C Rev 00 Customizing Frame Relay lt integer gt is the number of seconds allowed Legal values are 2 to 90 seconds The default is 10 For example the following command line sets a timer of 45 seconds signalling 3 2 call proceeding timer 45 signalling 3 2 Status Enquiry Timer Status enquiry timer indicates the number of seconds allowed from the time the router sends a status inquiry message to the time the router receives an incoming status disconnect release or release complete message If a timeout occurs the router retransmits the status inquiry and restarts the timer This occurs for the number of times set in the Status Enquiry Retry attri
196. remote peer This timer is the general purpose retransmission timeout It is used during initiation of LAPF multiple frame support and for timeout of LAPF numbered information frames During initiation of LAPF multiple frame support an unnumbered command SABME frame is sent to the peer LAPF to request multiple frame communications on the link The peer LAPF responds with an unnumbered acknowledgment UA frame When multiple frame support has been established numbered command response information I frames are transmitted both ways across the connection These I frames carry an acknowledgment of the highest number frame received by the sending LAPF In the event of a timeout the sending platform retransmits the frame up to the maximum number of times specified by the N200 Max Retries parameter Set to the retransmission timeout value appropriate for your network 1 3 6 1 4 1 18 3 5 9 9 7 1 8 T203 Idle Timer Configuration Manager Protocols Interfaces LAPF 30 1 to 120 seconds Indicates the amount of time in seconds that the router allows for idle time with no data being transmitted In the event of a timeout the router initiates a frame handshake to check if the connection is still up Set to the idle time value appropriate for your network 1 3 6 1 4 1 18 3 5 9 9 7 1 9 117376 C Rev 00 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID P
197. riority values Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens Choose the service record that includes the SVC that you want to configure for traffic shaping Click on the SVCs button The Frame Relay SVC Options List for Service window opens Choose the SVC option record that has values in the following parameters that match the remote end of the SVC connection Remote Party Number Remote Party SubAddress optional Remote Party Number Plan Remote Party Type of Number Set the following parameters using Help or the parameter descriptions that begin on page A 45 X 213 Data Priority X 213 Data LQA Priority X 213 Gain Priority X 213 Gain LQA Priority X 213 Keep Priority X 213 Keep LQA Priority Click on Apply Your changes take effect 117376 C Rev 00 3 73 Configuring Frame Relay Services Site Manager Procedure continued You do this 9 Click on Done System responds You return to the Frame Relay Service List window 10 Click on Done Deleting Frame Relay You return to the main Configuration Manager window To delete frame relay from a circuit on which it is curre
198. rs to exchange identification information LAPF Operational States LAPF has three main operational states TEI assigned This is the base interface state When the LAPF circuit is first established this is its state No timers are running and only unnumbered frames are supported across the link Active This state indicates that multiple frame support is up and running on the interface Numbered information frames can travel across the link Timer recovery This state indicates that a timer has expired and the peer is attempting to recover either through retransmission T200 timeout or by initiating an idle time handshake T203 timeout Once multiple frame support is operating on the channel numbered information frames are exchanged to transfer data and acknowledge earlier transfers 117376 C Rev 00 2 9 Configuring Frame Relay Services LAPF Timeout and Retransmission Timers Table 2 2 lists the timers and retransmission limits defined in the LAPF protocol for timeouts and retransmissions Table 2 2 LAPF Timeout and Retransmission Timers Site Manager Parameter Description T200 This general purpose retransmission timeout is used during initiation of LAPF multiple frame support and for timeout of numbered information frames T203 This timeout detects excessive idle time on the line and initiates a frame handshake to check if the connection is still up N200 This maximum retransmission count when r
199. rtual circuit WAN wide area network WCP WAN Compression Protocol WEP WAN Encryption Protocol XNS Xerox Networking System Bay Networks Technical Publications You can now print technical manuals and release notes free directly from the Internet Go to support baynetworks com library tpubs Find the Bay Networks products for which you need documentation Then locate the specific category and model or version for your hardware or software product Using Adobe Acrobat Reader you can open the manuals and release notes search for the sections you need and print them on most standard printers You can download Acrobat Reader free from the Adobe Systems Web site www adobe com Documentation sets and CDs are available through your local Bay Networks sales office or account representative Bay Networks Customer Service You can purchase a support contract from your Bay Networks distributor or authorized reseller or directly from Bay Networks Services For information about or to purchase a Bay Networks service contract either call your local Bay Networks field sales office or one of the following numbers xviii 117376 C Rev 00 About This Guide Region Telephone number Fax number United States and Canada 800 2LANWAN then enter Express Routing 978 916 3514 Code ERC 290 when prompted to purchase or renew a service contract 978 916 8880 direct Europe 33 4 92 96 69 66 33 4 92 96 69 96 As
200. s When you are finished List window click on Done 12 Click on Done You return to the main Configuration Manager window Disabling SVCs You can use either the BCC or Site Manager to disable SVC options without deleting them Using the BCC To disable SVCs 1 Navigate to the SVC options you want to disable 3 42 117376 C Rev 00 Customizing Frame Relay For example box serial 3 2 frame relay 3 2 service 8 0 3 svc options toronto 2 Enter the state command and the disabled option For example the following command line disables the SVC toronto svc options toronto state disabled svc options toronto Using Site Manager To disable SVCs Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Choose the service record that includes the SVCs you want to disable 5 Choose the SVC you want to delete 6 Set the SVC Support parameter to You have disabled the SVC Disable 7 Click on Apply The Multiline button replaces the SVC button in the Frame Relay Service List window 8 Click on Done You return to the main Configuration Manager window 117376 C Rev 00 3 43 Configuring Frame Relay Services Disconnecting Active SVCs To disco
201. s for PVCs L LAP F Defines basic frame relay LAP F Core protocol common to PVCs and SVCs Physical media BYS0037A Figure 2 5 Frame Relay Signaling and LAPF Standards 2 8 117376 C Rev 00 Frame Relay Overview The link access procedure frame mode LAPF layer defines five unnumbered control frames and three numbered supervisory frames on the communications link LAPF defines the following categories of management frames to support reliable transfer of multiple numbered frames over SVCs Unnumbered control Provides connection and disconnection services and includes set asynchronous balanced mode extended SABME disconnect DISC frame reject FRMR disconnected mode DM and unnumbered acknowledgment UA frames Numbered supervisory Provides flow control and retransmission information and includes receiver not ready RNR receiver reader RR and reject REJ frames Numbered information I A numbered command response which passes data across the link using a sliding window protocol The frames are numbered sequentially and carry an acknowledgment of the highest numbered frame received by the sending peer The maximum number of frames outstanding is configurable These frames can only be sent after setup of multiple frame communications on the link A flag within the frame differentiates a command from its response Exchange identification XID An unnumbered command response used to allow pee
202. s for SVCs Using the BCC To delete service records 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 117376 C Rev 00 3 37 Configuring Frame Relay Services 2 Enter the delete command and the service command and name in this format delete service lt servicename gt For example the following command line deletes the service record 8 0 32 frame relay 1 24 delete service 8 0 32 frame relay 1 2 Using Site Manager To delete service records from a frame relay interface Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the The Protocols menu opens Configuration Manager menu bar 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Services The Frame Relay Service List window opens 4 Choose the service record you want to delete 5 Click on Delete A confirmation window opens It asks if you really want to delete the service record 6 Click on OK You have deleted the service record Call Screening and Blocking You can use either the BCC or Site Manager to configure call screening and blocking for a service record Using the BCC You can screen and block incoming calls The relevant commands are e svs call block direction svc screen control e SVC Screen usage 3 38 117376 C Rev 00 Customizing Frame Relay SVC Call Block Direction The svc call block direction
203. s manually Options for User Management Rev 1 LMI provides user side management services as specified by Revision 1 of the Local Management Interface standard ANSI T1 617D provides user side management services as specified in Annex D to ANSI standard T1 617 1991 CCITT Annex A provides user side management services as specified by the ITU T formerly CCITT Options for Limited Management for DCE Switch primarily for troubleshooting LMI Switch offers limited management services for the DCE side of the connection as specified by Revision 1 of the Local Management Interface standard Annex D Switch provides limited management services for the DCE side of the connection as specified in Annex D to ANSI standard T1 617 1991 Annex A Switch provides limited management services for the DCE side of the connection as specified by the ITU T Select the management protocol for the frame relay network 1 3 6 1 4 1 18 3 5 9 9 1 1 6 117376 C Rev 00 A 5 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Address Configuration Manager gt Protocols gt Frame Relay gt Interfaces ADDR Q922 ADDR Q922 ADDR Q922 November 90 ADDR Q922 MARCH 90 ADDR Q921 Specifies the DLCI addressing type ADDR Q922 selects addressing as specified in the final version of
204. ser manual solely in support of authorized use of the Software by Licensee This license applies to the Software only and does not extend to Bay Networks Agent software or other Bay Networks software products Bay Networks Agent software or other Bay Networks software products are licensed for use under the terms of the applicable Bay Networks Inc Software License Agreement that accompanies such software and upon payment by the end user of the applicable license fees for such software 2 Restrictions on use reservation of rights The Software and user manuals are protected under copyright laws Bay Networks and or its licensors retain all title and ownership in both the Software and user manuals including any revisions made by Bay Networks or its licensors The copyright notice must be reproduced and included with any copy of any portion of the Software or user manuals Licensee may not modify translate decompile disassemble use for any competitive analysis reverse engineer distribute or create derivative works from the Software or user manuals or any copy in whole or in part Except as expressly provided in this Agreement Licensee may not copy or transfer the Software or user manuals in whole or in part The Software and user manuals embody Bay Networks and its licensors confidential and proprietary intellectual property Licensee shall not sublicense assign or otherwise disclose to any third party the Software or any information about
205. ssion because only the precompressed traffic is shaped the compressed traffic is not shaped WCP compresses data at the rate it receives it which with traffic shaping is the CIR It is therefore unrealistic to expect a high compression throughput for data that originates from a site that also uses traffic shaping Using Traffic Shaping Effectively You can use traffic shaping at one or both ends of a link but you must use compression at both ends of a link It makes sense to use traffic shaping at a central site where you have a T1 line that sends data to remote sites with 64 KB line rates and the goal is to control the flow of traffic and avoid flooding the remote sites But if the CIR is equal to the line rate which could well be the case at the remote site with 64 KB line rates there is no need to use traffic shaping Using Compression Effectively You can use compression effectively in the case of the 64 KB site which does not use traffic shaping You can also compensate for the throughput cost associated with using compression and traffic shaping at the central site by taking into account characteristics of compression and traffic shaping and fine tuning traffic shaping parameters e When you configure traffic shaping take into account the compression ratio you want to achieve e If you set the B equal to the B the router doubles the amount of traffic it attempts to send and when you enable compression compresses that amount
206. ssthru from the menu options You can also choose WCP but configuring any other bridging protocols will have no effect When you are finished click on OK You return to the FR PVC List for Service window When you have finished adding PVCs click on Done You return to the FR Service List window 7 Click on Done 8 Click on Done You return to You return to the main Configuration Manager window Choose Protocols gt FR PVC Passthru gt Mappings from the menu bar The FR Passthru Mapping List window opens 10 Choose Add The FR PVC Passthru Mapping Add window opens It directs you to Select first PVC for Passthru mapping 11 Choose the first PVC and click on Select The FR PVC Passthru Mapping Add window now displays a list of PVCs that you can map to the first PVC This list consists of all PVCs that you have not already configured for a mapping and that reside on lines other than the one for the first PVC The window now instructs you to Select second PVC for Passthru mapping 117376 C Rev 00 3 21 Configuring Frame Relay Services Site Manager Procedure continued You do this System responds 12 Choose the PVC with which you want to map the PVC you chose in Step 9 13 Click on Select The FR Passthru Mapping List window now displays the mapping you just created 14 Continue creating mappings When you You return to the ma
207. t all frame relay interfaces You can display the current operational status and interface type This command allows for the following command filters and filter arguments state enabled disabled error type backup normal primary demand Displays information about the state of the frame relay interfaces e enabled shows only frame relay interfaces that are enabled disabled shows only frame relay interfaces that are disabled error shows only frame relay interfaces that are not present or are in a fault state backup shows only frame relay interfaces used to back up another frame relay interface normal shows only frame relay interfaces that are not backup primary or demand frame relay interfaces primary shows only frame relay interfaces that have a backup frame relay interface assigned to them demand shows only frame relay interfaces that are dial on demand 117376 C Rev 00 C 5 Configuring Frame Relay Services The output includes the following information Interface Circuit Management Type Interface Type Status Faults Number of VCs Total Number of VCs Active Services The interface on which the frame relay circuit resides Name of the main frame relay circuit associated with this interface Type of Data Link Control Management Interface DLCMI configured for the interface as follows Annex A Management services as specified by CCITT
208. t it has been added to the multiline circuit The Add Multiline Services window closes Multi line with 204102 0 7 FR Slot 4 COM3 Cct 8 Default FR Slot 3 T1 1 Cct 9 Default Select Cancel Figure A 9 Add Multiline Services Window 117376 C Rev 00 A 33 Configuring Frame Relay Services Parameter Multiline Algorithm to Choose Line Path Configuration Manager gt Protocols gt Frame Relay gt Services gt Multiline Default None Options Random Address Based Function Specifies how the multiline circuit distributes traffic over its data paths Instructions To send data alternately over the two paths select Random This method ensures even distribution among the lines but the packets arrive out of sequence If the traffic between the same source and destination address pair is always going over the same data path select Address Based This method ensures the data arrives in sequence MIB Object ID 1 3 6 1 4 1 18 3 5 1 4 1 1 23 SVC Service Record Parameters The following topics describe SVC service record parameters Topic Page SVC Service List Parameters A 34 SVC Options Parameters A 40 SVC Options List for Service Parameters A 43 SVC Service List Parameters You can edit SVC Service List parameters in the Frame Relay Service List window Figure A 10 These parameters apply to all of the SVCs on the service record unless you configure SVCs individually with SVC Options param
209. terface each VC has 20 buffers e If you enable protocol prioritization the default number of buffers is 30 for high priority traffic 200 for normal and 30 for low You can use the Technician Interface to increase the total number of buffers for the interface and you can also redistribute buffers among the VCs and among priority queues The parameters that you customize at the interface level are e wfFrDlemiShapingHiQueueLimit e wfFrDlcmiShapingNormalQueueLimit e wfFrDlcmiShapingLoQueueLimit 2 32 117376 C Rev 00 Frame Relay Overview The parameters you can customize at the VC level are e wfFrCircuitShapedHiQueueLimit e wfFrCircuitShapedNormalQueueLimit e wfFrCircuitShapedLoQueueLimit For information on using the Technician Interface see Using Technician Interface Software FECN and BECN Notification Bits The topic Congestion Control on page 2 22 explains that a specified number of FECN and BECN bits received during a set time period indicate congestion When congestion occurs on a traffic shaped VC the router either drops traffic throttles it or throttles and then drops traffic depending on the value of the Congestion Method attribute or parameter The FECN and BECN notifications are part of the header in a frame relay data packet In a big pipe little pipe topology see Figure 2 11 the central site router A typically sends much more data than it receives This means that the remote site routers B C
210. terminal equipment To have LAPF act as the DTE accept the default User Side To have LAPF act as the DCE set to Network Side 1 3 6 1 4 1 18 3 5 9 9 7 1 6 117376 C Rev 00 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Action Initiate Configuration Manager gt Protocols gt Interfaces gt LAPF Active Active Passive Identifies the action LAPF will take to initiate link setup by sending or holding unnumbered command SABME frames to poll the router at the other end of the connection Active indicates that LAPF will send SABME frames and initiate link setup Passive indicates that LAPF will hold SABME frames and take no action to initiate link setup To establish a LAPF link at least one end of the connection has to initiate link setup To have LAPF initiate link setup from this router accept the default Active To have LAPF take no action to initiate link setup set to Passive 1 3 6 1 4 1 18 3 5 9 9 7 1 7 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters T200 Base Timer Configuration Manager Protocols Interfaces LAPF 15 to 1200 tenths of a second Indicates the amount of time in tenths of a second that the router waits to receive an acknowledgment from its
211. the Q 922 standard Q 922 provides for FECN BECN DE and EA bits While most Q 922 addresses are included within a 2 octet field the standard allows for 3 and 4 octet address fields The November draft of ADDR Q922 differs from ADDR Q922 in dropping the D C bit from the extended 3 and 4 byte forms The March draft of ADDR Q922 differs from ADDR Q922 in defining an 11 bit DLCI and dropping the DE bit from the second octet of the address field ADDR Q921 differs from ADDR Q922 MARCH 90 in that it does not use FECNs or BECNs Select the addressing type for the frame relay interface 1 3 6 1 4 1 18 3 5 9 9 1 1 8 Address Length Configuration Manager gt Protocols gt Frame Relay gt Interfaces Two Byte Two Byte Three Byte Four Byte Specifies the length of the frame relay address field The length of this field determines the range of valid numbers for the DLCI number set in the Frame Relay PVC List window For more details see the DLCI Number parameter description on page A 25 Select the address length for the address field This must match what the network specifies 1 3 6 1 4 1 18 3 5 9 9 1 1 9 A 6 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Polling Interval Configuration Manager gt Protocols gt Frame Relay gt Interfaces
212. thout providing values for the traffic shaping attribute or parameters The SVCs you configure in this way use LL Core values that the network provides 117376 C Rev 00 2 27 Configuring Frame Relay Services e You can set the SVC Traffic Shaping Disable attribute or parameter to Enable and provide values for the LL Core traffic shaping attribute or parameters If you supply values for the LL Core attribute or parameters the router requests an SVC from the frame relay network with the quality of service you have designed However the router can only request the values you have configured The actual values the network supplies may be less than requested because the local router the network and the remote end negotiate the actual quality of service To track the values an SVC uses use the Site Manager Statistics Manager for more information see Configuring and Managing Routers with Site Manager e You can set the SVC Traffic Shaping Disable attribute or parameter to Disable and provide values for the LL Core Committed Burst Excess Burst and Throughput attribute or parameters If you configure traffic shaping this way the router does not enforce the CIR it requests from the frame relay network There is a risk of oversubscribing the interface which may result in dropped packets Refining Quality of Service for SVCs SVCs allow you to refine quality of service requirements in that you can specify values for traffic shaping
213. tion frame Reject REJ requests retransmission of information frames Receive not ready RNR indicates that the station is temporarily busy and not ready to receive information frames Receive ready RR indicates that the station is ready to receive information frames Exchange ID indicates the station s identification information 117376 C Rev 00 C 21 Configuring Frame Relay Services lapf errors Displays LAPF error statistics for frame relay interfaces This command allows for the following command filter and filter argument interface lt name gt Displays only frame relay VCs configured on the specified interface The output contains the following information Interface Interface on which the VC resides Retransmission T200 Timeouts Indicates the length of time the router waits to receive an acknowledgment from the station Idle T203 Timeouts Indicates the amount of time that the router allows with no data being transmitted Retransmission Limit Indicates that the router sends the SABME message Exceeded N200 Violation based on the value contained in the N200 counter wfLapfN200 without receiving a reply Frame Size Exceeded N201 Number of information frames whose length exceeds Violations the maximum number of octets defined by N201 wfLapfN201 C 22 117376 C Rev 00 Monitoring Frame Relay Using BCC show Commands lapf traffic Displays LAPF traffic statistics for frame relay interf
214. tion timer period before it stops transmitting If the router reaches the value set by this parameter it determines the line is congested and stops transmitting Set the congestion count The smaller the number the more quickly the router detects congestion and stops transmitting The value of this parameter applies to all VCs that you do not individually configure 1 3 6 1 4 1 18 3 5 9 9 10 1 30 A 52 117376 C Rev 00 Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID Site Manager Parameters Congestion Method Configuration Manager select a connector gt Edit Connector window gt Edit Circuit gt Services gt Frame Relay Service List window gt SVCs gt Add Inherit Shutdown Throttle Throttle Then Shutdown Inherit Specifies the method of congestion control Shutdown terminates the VC when congestion occurs Throttle queues traffic when congestion occurs traffic resumes when congestion alleviates This option is valid only when traffic shaping is enabled Throttle Then Shutdown first queues traffic when congestion occurs and then terminates the VC if throttling does not alleviate congestion This option is valid only when traffic shaping is enabled Inherit uses the value in the Interface Congestion Method parameter Choose a setting appropriate to your network 1 3 6 1 4 1 18 3 5 9 9
215. to automatically disconnect an SVC according to values that you configure for amount of time and the direction that data is flowing over the SVC You can configure these parameters to apply to all SVCs in a service record and you can also configure them for individual SVCs When the router establishes an SVC the Inactivity Timer value initializes two timers internal to the router the one that monitors data the router transmits and one that monitors data the router receives The Inactivity Timer Mode parameter defines how the timers restart Table 2 7 shows the various ways you can set these parameters and the effect each combination has on disconnecting SVCs Table 2 7 Inactivity Timer and Inactivity Timer Mode Interaction Inactivity Timer Mode Inactivity Timers Used Disconnect SVC Both Directions Transmit and Receive When both timers expire no data transmitted AND no data received during the timer interval Either Direction Transmit and Receive When either timer expires no data transmitted OR no data received during the timer interval Transmit Only Transmit When the transmit timer expires no data transmitted during the timer interval Receive Only Receive When the receive timer expires no data received during the timer interval For instructions on setting these values for the inactivity parameters see Setting Inactivity Values for SVCs on page 3 55 2 34 117376 C Rev 00
216. tted information rate See CIR Compression Control parameter A 31 compression of data 2 21 congestion controlling 3 58 congestion control configuring 3 22 Congestion Control parameter A 9 A 29 Congestion Counter parameter A 10 A 30 A 52 Congestion Disable paramete A 51 Congestion Method parameter A 11 A 31 A 53 Congestion Timer parameter A 10 A 30 A 52 congestion description of 2 22 customer support programs xviii Technical Solutions Centers xix customizing frame relay 3 1 Index 1 D data compression 2 21 encryption 2 21 data compression 3 70 enabling 3 32 with traffic shaping 2 30 data link control identifier DLCI 2 5 default service record 2 14 deleting frame relay 1 9 3 74 PVCs 3 16 service records 3 38 dial backup 2 38 dial on demand 2 38 direct mode 2 16 disabled circuits fr C 7 disconnect indication state 2 12 DLCI address length selecting 3 4 DLCI address type selecting 3 4 DLCI Number parameter A 25 DLCMI Data Link Control Management Interface definition of 2 7 standards of 2 7 E editing congestion control parameters 3 58 LAPF parameters 3 44 signaling parameters 3 50 traffic shaping parameters 3 65 Enable parameter Interface A 4 Enable parameter SVC LAPF A 13 enabled circuits fr C 8 enabling frame relay 1 1 encryption of data 2 21 error threshold 3 7 Error Threshold parameter A 8 Index 2 Excess Burst paramet
217. ues are 5 to 30 seconds For example the following command line changes the polling interval from 5 to 20 seconds dlcmi 1 24 polling interval 20 dlcmi 1 2 9 3 8 117376 C Rev 00 Customizing Frame Relay Full Enquiry Interval To set the full enquiry interval 1 Navigate to the dlcmi prompt For example box frame relay 1 2 dlcmi Enter the full enquiry interval command and the value you want the network to use full enquiry interval integer integer is the number of polling intervals that occur before the router sends a full status inquiry the legal values are 1 to 255 intervals and the default is 6 For example the following command line sets the full enquiry interval to 45 seconds dlcmi 1 24 full enquiry interval 45 dlcmi 1 2 9 Error Threshold To set an error threshold 1 Navigate to the dlcmi prompt For example box serial 1 2 frame relay 1 2 dlcmi Enter the error threshold command and the value you want the network to use error threshold integer integer is the number of status exchange errors that can occur during the number of monitored events you specify before the router brings down the connection Legal values are 1 to 5000 and the default is 3 For example the following command line sets the error threshold at 12 errors dlcmi 1 2 error threshold 12 dlcmi 1 24 117376 C Rev 00 3 9 Configuring Frame Relay Services Monitored Events To set
218. uiry message If the router sends the maximum number of status inquiry messages and receives no response the call is cleared Enter a value for status inquiry retries 1 3 6 1 4 1 18 3 5 9 9 9 1 11 117376 C Rev 00 A 21 Configuring Frame Relay Services Parameters for PVCs The following topics give information about configuring PVCs Topic Page Service Name Parameter A 22 Required DLCI Parameter for Each PVC A 24 PVC Service Record Parameters A 26 Optional Algorithm Parameter for Each Multiline Configuration A 32 Service Name Parameter The Frame Relay Service List window Figure A 5 contains the Service Name parameter and the PVCs button that opens the PVC List for Service window where you can edit PVC parameters A 22 117376 C Rev 00 Figure A 5 FR Slot 2 COM1 Cct 1 Default FR Slot 2 COM1 Cct 6 FR Slot 2 COM3 Cct 5 Default FR Slot 4 COM2 Cct 8 Default FR Slot 5 COM1 Cct 7 Default Service Name SYC Support SVC Local Party Number SYC Local Party Sub Address SVC Local Party Number Plan SVC Local Party Type of Number Site Manager Parameters Done Delete PVCs Multi line Apply Values Help 202103 0 5 DISABLE Frame Relay Service List Window for PVCs To access the Frame Relay Service List window Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Mana
219. ured on the specified The output contains the following information Interface Last Error Type Last Error Time Faults Outbound Drops Inbound Discards Interface on which the frame relay SVC resides Type of the last error received Time of the last error received Number of faults received Total number of outbound frames dropped because the SVC is inactive Total number of inbound frames discarded because they were deemed erroneous C 26 117376 C Rev 00 A access modes 2 15 Action Initiate parameter A 14 active state 2 9 adding PVCs 3 14 PVCs to a service record 2 15 service records 3 12 SVCs 3 41 adding service records 3 35 Address Length parameter A 6 Address parameter A 6 address resolution 2 18 address based distribution for multiline 2 36 adjacent hosts 1 9 alerts fr C 6 Annex A switch 3 2 Annex D switch 3 2 Bc configuring 2 30 description of 2 24 Be description of 2 24 BECN backward explicit congestion notification congestion control 2 22 definition of 2 5 big pipe little pipe 2 20 2 33 Broadcast Control parameter A 44 buffers and traffic shaping 2 32 117376 C Rev 00 Index C call present state 2 12 CIR definition of 2 23 enforcement 2 24 2 30 maximum value 2 24 with a value of 0 2 24 Circuit State Set parameter A 27 Committed Burst parameter A 28 committed burst rate See Bc committed information rate CIR 2 4 commi
220. us Attachments A and B to FRFEA ITU T Recommendation Q 933 Digital Subscriber Signalling Specification No 1 DSS 1 Signalling Specification for Frame Mode Basic Call Control October 1995 ITU T Recommendation Q 931 Digital Subscriber Signalling System No I DSS 1 ISDN User Network Interface Layer 3 Specification for Basic Call Control March 1993 ITU T Recommendation Q 922 Digital Subscriber Signaling Specification No 1 DSS 1 Data Link Layer ISDN Data Link Layer Specification for Frame Mode Bearer Services 1992 The following publications provide a less technical introduction to frame relay Davidson R and N Muller The Guide to SONET Planning Installing amp Maintaining Broadband Networks New York Telecom Library Inc 1991 Goldstein F SDN in Perspective Reading MA Addison Wesley 1992 Jennings E T Jones and K Rehbehn 7he Buyer s Guide to Frame Relay Networking Netrix Corporation 2 40 117376 C Rev 00 Chapter 3 Customizing Frame Relay When you enable frame relay default values are in effect for all Bay Command Console BCC attributes and Site Manager parameters for Site Manager parameter descriptions see Appendix A Site Manager Parameters Depending on your network requirements you may want to change these values The following sections describe how to customize frame relay for your network Topic Page Using the MIB Object ID 3 1 Selecting a M
221. v 00 2 1 Configuring Frame Relay Services Topic Page Traffic Shaping Considerations 2 9 X 213 Priority for SVCs 2 34 Inactivity Timing for SVCs 2 34 Multiline for PVCs 2 35 PVC Pass Through 2 37 Frame Relay Dial Services 2 38 Configuring Synchronous Lines for Frame Relay 2 39 For More Information About Frame Relay 2 39 Introduction to Frame Relay Frame relay is a high speed packet switching WAN protocol that connects geographically dispersed LANs Frame relay is usually offered by a public network provider however private organizations can acquire and manage their own frame relay networks as well Frame relay is a connection oriented protocol which means that it relies on end to end paths between devices connected across the network It implements these connections using permanent virtual circuits or switched virtual circuits Figure 2 1 illustrates a frame relay network mE Ss Frame relay eee network s EL Switch Go Switeh E Router VC Switch Router EL JL Frame relay defines the interface between the DTE router and the DCE switch VC virtual circuit Router FR0001A Figure 2 1 Frame Relay Network
222. verview Multiple Service Records Adding and Frame Rel Interfaces can have multiple service records and each service record can contain multiple PVCs SVCs or combinations of PVCs and SVCs Moving PVCs You can add PVCs to a service record either individually or in a range You can also move PVCs on the same interface from one service record to another individually or as a group For instructions see Customizing PVCs on page 3 11 ay Access Modes Bay Networks describes frame relay PVCs in terms of three access modes group direct and hybrid The following topics define each of these modes within the context of service records Group Access Mode Group mode describes a service record with multiple VCs It represents a true point to multipoint circuit In group access mode upper layer protocols treat each frame relay network interface as a single access point to the switched network The upper layer protocols use a single network address to send all traffic destined for the switched network to the frame relay network interface When you configure each router you assign only one network address for example an IP or IPX address to the frame relay interface not to each VC The Data Link Control Management Interface DLCMI dynamically configures VCs on the default service record you do not need to explicitly configure them Service records in group mode Allow multiple groups of PVCs per frame relay connection
223. virtual circuit level CIR enforcement operates on whole frames only It controls congestion either by bringing down the virtual circuit or by queuing the traffic which is also called throttling Committed Burst Rate and Excess Burst Rate The committed burst rate B defines the number of bits that the router can transmit over a specified time interval T when congestion is occurring The excess burst Be defines the number of extra bits that the router attempts to send over the T when there is no congestion Both the B and the B are values that you configure 2 24 117376 C Rev 00 Frame Relay Overview The sum of the B and the B is the maximum amount of traffic that can travel across the network per T when there is no congestion If you set the B to a value greater than zero the router can send traffic exceeding the CIR To enforce the CIR that is to limit traffic that the router can send to the amount of the CIR set the B to 0 If you enable congestion control and set the congestion method to throttle the virtual circuit sends only B bits of data over the time interval T when congestion occurs even if you have configured the B to a value greater than 0 It queues the excess data until congestion abates If you set the congestion method to throttle then shutdown the virtual circuit first queues traffic when congestion occurs and then terminates the virtual circuit if throttling does not alleviate congestion
224. you configure PVCs individually at the service level and either disable congestion control or select other values for the congestion control attributes 3 22 117376 C Rev 00 Customizing Frame Relay Configuring Congestion Control for an Interface To configure congestion control for the interface you must first enable congestion control then optionally you can set a value for the congestion timer congestion counter and the congestion method Congestion Control 1 Navigate to the frame relay prompt For example box serial 1 2 frame relay 1 2 Enter the congestion control command and the value enabled congestion control enabled For example the following command line enables congestion control for this frame relay interface frame relay 1 24 congestion control enabled frame relay 1 2 Congestion Timer To change the value for the congestion timer 1 Navigate to the prompt for the interface that you want to edit For example box serial 1 2 frame relay 1 2 Enter the congestion timer command and the value you want the interface to use congestion timer integer integer is the length of time in seconds during which the router counts congestion notifications see Congestion Counter on page 3 24 If the router receives the number of congestion notifications you set in the Congestion Counter during this amount of time the router stops transmitting data Legal timer values are 0 5 1
225. your network 1 3 6 1 4 1 18 3 5 9 9 7 1 12 A 16 117376 C Rev 00 Site Manager Parameters SVC Signaling Parameters If you configure SVCs signaling parameters are important to your network You can edit these parameters in the Frame Relay Signaling Parameters window Cancel OK Values Help Signalling Control ENABLE Max SVCs 100 T303 Setup Message Timer 4 T305 Disconnect Timer 30 T308 Release Timer 4 T310 Call Proceding Timer T322 Status Enq Retry Timer N322 Status Enq Retry Max Figure A 4 Frame Relay Signaling Parameters Window 117376 C Rev 00 A 17 Configuring Frame Relay Services Parameter Path Default Options Function Instructions MIB Object ID Parameter Path Default Options Function Instructions MIB Object ID To access the Frame Relay Signaling Parameters window Site Manager Procedure You do this System responds 1 Click on the Protocols menu in the Configuration Manager menu bar The Protocols menu opens 2 Click on Frame Relay The Frame Relay menu opens 3 Click on Interfaces The Frame Relay Interface List window opens 4 Click on the Signaling button The Frame Relay Signaling Parameter window opens Signaling Control Configuration Manager gt Protocols gt Frame Relay gt Interfaces gt Signaling Enable Enable Disable Enables or disables signaling on this interface To use signalin
226. yption for frame relay circuits works with direct mode PVCs only For information about and instructions for configuring data encryption see Configuring Data Encryption Services Protocol Prioritization You can set priorities for the traffic sent across a synchronous line interface using a process called protocol prioritization The ability to prioritize traffic is important for an application that is time sensitive and that requires a fast response For example a user at router A participating in a Telnet session with router B requires a more immediate response than does a user at router A performing a file transfer with router B 117376 C Rev 00 2 21 Configuring Frame Relay Services When you select frame relay on a circuit the router enables protocol prioritization automatically It does so because the DLCMI packets must have a higher priority than any other packets you are sending across the network For more information about protocol prioritization see Configuring Traffic Filters and Protocol Prioritization Congestion Control Network congestion can degrade network performance Congestion occurs when a node receives more frames than it can process or sends more frames than the transmission line can handle The frame relay network informs the nodes of congestion so that they can reduce the amount of traffic across the network In the frame relay packet header there are two bits that the network sets to alert nodes of n

Avaya Configuring Frame Relay Services User's Manual

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