Cabletron Systems MMAC-Plus 9T122-24 User's Manual
Contents
1. 4 2 The function of the Token Ring Mac receive LEDs are listed in Table 4 4 Table 4 4 Token Ring Receive LED LED Color State Red No link Port disabled Red Flashing Link Port disabled Green Link No activity Port enabled Yellow Flashing Link Activity Flashing rate indicates rate of activity Off No link No activity Port enabled The function of the Token Ring Mac transmit LEDs are listed in Table 4 5 Table 4 5 Token Ring Transmit LED LED Color State Red Port Disabled Red Flashing Green Flashing Fault Ring is Beaconing Activity Flashing rate indicates rate of activity Yellow Flashing Port in standby state Link Off No activity Port enabled The functions of the Link LED are listed in Table 4 6 Table 4 6 Port Link LEDs LED Color State Red No link Port disabled Red Flashing Link Port disabled or Speed fault Green Link Port enabled Off No link Port enabled 4 3 LANVIEW LEDs The function of the Token Ring speed LEDs is listed in Table 4 7 Table 4 7 Token Ring Speed LED Color State Yellow 16 Mbs Off 4 Mps 4 4 Specifications Safety emissions It is the responsibility of the person who sells the system to which the module will be a de part to ensure that the total system meets allowed limits of conducted and radiate2. Oa Os ON O O O OS OS oz AAA MMAC IS Figure 1 1 The 9T122 24 MicroL AN Module 1 3 Introduction Related Manuals The manuals listed below should be used to supplement the procedures and technical data contained in this manual MMAC Plus Installation Guide MAC Plus Operations Guide MAC Plus 9C300 1 Environmental Module User s Guide MAC Plus 9C214 1 AC Power Supply User s Guide M M M M MAC Plus Local Management User s Guide Getting Help 1 4 If you need additional support with the MMAC Plus or if you have any questions comments or suggestions concerning this manual feel free to contact Cabletron Systems Technical Support By phone 603 332 9400 By Compuserve GO CTRON from any prompt By Internet mail support ctron com By mail Cabletron Systems Inc P O Box 5005 Rochester NH 03867 0505 01 LE Te a Installation Installing the MicroLAN Module The MMAC Plus MicroLAN Module may be installed into any of the 14 slots that are available To install follow the steps below 1 Switch off the power supplies and remove all power from the MMAC Plus chassis 2 Remove the blank panels covering the slots that the module is being mounted in All other slots must be covered if modules are not being installed to ensure proper airflow and cooling 3 Carefully remove the module
3. 4 LANVIEW LEDs Chapter5 Specifications Safety A A et M en ne ne ete te 5 1 NN 5 1 A A er rs 5 2 DAA A HN ae ete da 5 2 RATE SNE 5 2 Me AA nn a tot nine a e ner eee et RS 5 2 Chapter 1 Introduction The 9T122 24 MicroLAN Switch Module shown in Figure 1 1 is a three port Token Ring bridge and router module This module supports either one token ring with twenty four HUB connections or two separate Token Rings with twelve HUB connections and an interface to the FNB backplane Features Processor The 9T122 24 is equipped with an advanced Intel i960 microprocessor This microprocessor provides a platform for all management functions within a scalable RISC based architecture System Management Interfaces to the two System Management Buses SMB 1 and SMB 10 for intermodule management Connectivity The 9T122 24 provides twenty four RJ 45 Trunk Coupling Unit TCU lobe connectors The connectors may be configured as one twenty four port ring default or two twelve ports rings Bridging Routing Bridging Routing between the front panel Token Ring connections and or to any other module in the chassis via FNB 1 or FNB 2 of the FNB bus The module is capable of Transparent Bridging or Source Route Bridging IEEE 802 1d Spanning Tree Protocol is supported in all bridging functions Translational bridging between Source Routing and Transparent Frames types is also performed 1 1 Introduction 1 2 Managemen
4. 0 PLUS Core wW Twelve A Front Panel Connections Figure 3 1 9T122 24 Block Diagram The 9T122 24 is configured for SRT bridging It will pass SR Source Routing frames between the rings and provides translation to transparent frames over the FNB to Ethernet and FDDI modules For information on configuring the bridging function see the addendum to the MMAC Plus Local Management User s Guide containing information specific to this model 3 1 Operation Transparent Bridging Transparent Bridging is accomplished by building a Source Address Table SAT from source MAC physical addresses and using the SAT to make forwarding decisions The 9T122 24 prevents unnecessary network traffic from passing through the module by implementing two separate filtering processes IEEE 802 1d or Cabletron s Special Filtering Database These processes may be used individually or in tandem The first process the IEEE 802 1D filtering process begins with the creation of a list of local node addresses in a table the SAT When the 9T122 24 first goes on line it initially forwards all packets across the bridge After receiving a packet on the bridge port the 9T122 24 learns the address of the sending node from the packet and stores that address in the SAT In this manner the bridge learns the address of each node on each side of the bridge The bridge then uses the addresses stored in the table to compare the
5. B The FNB consists of two dual FDDI networks the FNB 1 and ENB 2 providing up to 400 Mbps of data bandwidth These FDDI networks are 100 ANSI FDDI compliant supporting SMT version 7 3 MAC PHY and PMD standards This allows the FNB to traverse multiple MMAC Plus hubs or connect to any ANSI FDDI compliant device through standard A B port connections using the FDDI repeater module System Management Buses SMB 1 Bus SMB 10 Bus 3 4 There are two management channels within the MMAC Plus system the SMB 1 and the SMB 10 These buses provide out of band management and inter module management communication The SMB 1 is a 1Mbs management bus located within the MMAC Plus This bus is utilized by all diagnostic controllers in the system including connectivity modules power supply modules and the environmental module The SMB 1 transports inter chassis information between system components such as power and environmental information as well as diagnostic messages Periodic loop back test are preformed by all modules which share this bus to ensure the validity of SMB 1 In the event a failure is detected on SMB 1 the SMB 10 may be used as an alternate communication channel The SMB 10 is a 10Mbs management bus located within the MMAC Plus which is also used for inter chassis communication of modules as well as serving as an out of band management channel into the MMAC Plus The SMB 10 is externalized from the chassis via an optiona
6. MMAC Plus 9T122 24 Three Port Token Ring MicroLAN Switch Module User s Guide CABLETRON systems The Complete Networking Solution Notice Notice Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made The hardware firmware or software described in this manual is subject to change without notice IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES WHATSOEVER INCLUDING BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES O Copyright June 1995 by Cabletron Systems Inc P O Box 5005 Rochester NH 03867 0505 All Rights Reserved Printed in the United States of America Order Number 9031206 01 June 95 SPECTRUM Remote LANVIEW and LANVIEW are registered trademarks and MMAC Plus and MicroLAN are trademarks of Cabletron Systems Inc Notice FCC Notice This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may c
7. TEST ESM RIE ORELABMOCWAT SEL SU FEES A HEMEFDIAA CE NADA BGR tio TELAI hes LT FSU Notice DOC Notice This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la class A prescrites dans le R glement sur le brouillage radio lectrique dict par le ministere des Communications du Canada iij Chapter 1 Introduction A AO 1 1 Related Manuals iii laa cid 1 4 Getting Help vinil dad en Rte dune rien 1 4 Chapter 2 Installation Installing the MicroLAN Module ani iii 2 1 The Reser SWC AA A A O Re 2 3 User Accessible Components sus 2 4 Setting the Module Card DIP Switch sisas 2 5 Ring Speed A tn aaas e eaea ae epee E ean a EA EEE ER 2 7 Multi Ring Out Capabilityssn irise in i a a uneestetebeades tse 2 7 Chapter 3 Operation Bd ina ia E E E EE E AS 3 1 Transparent Bridging AAA a Taea in to E raei 3 2 Source Route Bridging ss 3 2 Spanning Tree Al Son td lod dais 3 3 Flexible Network Bus FNB annann e iii 3 4 System Management BUSES ss 3 4 MB BUS nn tn A nent nn dar 3 4 SIMBA lO Bus tooo a ia Res die ea nr Aa nan Das 3 4 System Diagnostic Controller 3 5 DC DC Converter is nt o de nie ce 3 5 PNB Ite rte COs ii A ini 3 5 A A NETA 3 5 Chapter
8. ause undesired operation NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment uses generates and can radiate radio frequency energy and if not installed in accordance with the operator s manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense WARNING Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment VCCI Notice This equipment is in the 1st Class Category information equipment to be used in commercial and or industrial areas and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment VCCI aimed at preventing radio interference in commercial and or industrial areas Consequently when used in a residential area or in an adjacent area thereto radio interference may be caused to radios and TV receivers etc Read the instructions for correct handling COLE HH MITRA ADN CARA COMMUNES BME LAMA NAAA AE RANAS OC SMCS LT Bott
9. d This equipment meets the safety requirements of UL 1950 CSA C22 2 No 950 EN 60950 IEC 950 EMI Requirements of FCC Part 15 Class A EN 55022 Class A VCCI Class I EMC requirements of EN 50082 1 TEC 801 2 ESD TEC 801 3 Radiated susceptibility TEC 801 4 EFT Service MTBF MHBK 217E gt 200 000 hrs MTTR lt 0 5 hr 5 1 Specifications Physical Dimensions Weight Electrical 5 2 35 0 D x 44 0 H x 3 0 W centimeters 13 8 D x 17 4 H x 1 2 W inches Unit 1 36 kg 31b Shipping 1 81 kg 4lb CPU 1960 Shared DRAM Memory 4Mb expandable to 12 Mb Local DRAM Memory 4Mb expandable to 12 Mb Flash 2Mb expandable to 14 Mb Token Ring Interfaces 2 Texas Instruments TMS380C26 Controllers NVRAM 128 Kb
10. destination address of each subsequent packet that travels to the bridge If the destination address of a packet resides on the bridge segment the 9T122 24 does not forward across the Token Ring link The second filtering process the Cabletron Systems Special Filtering Database provides an additional step in the filter forward decision Through Remote Management you can define up to 10 additional filtering parameters for incoming network traffic These parameters include but are not limited to the e destination address e source address e type field protocol e 64 bytes of the data field using a data offset For example using this process you can ensure that the 9T122 24 always filters or forwards packets with a specific protocol or address Source Route Bridging 3 2 Source Route Bridging operates by transmitting frames over a designated route Unlike Transparent Bridging all devices in a Source Route Bridged SRB network know the locations of other stations within the network Using a portion of the MAC frame header known as the RIF Routing Information Field the source device determines the route for the frames it sends In order for source routing to work the source station must determine the proper route to reach the desired destination To accomplish this 1 The source station sends out frames called All Route Explorer ARE or Single Route Explorer SRE frames onto the network All Source Route Bridges r
11. ecognize these frames and forwards them to their outbound ports Bridging 2 The receiving bridges append their own route information to the Route Information Field RIF in the MAC frame header and transmit the frame again 3 Eventually the original source device receives all of the ARE replies from the other end stations on the network 4 From this information the source device can determine a desired route for each frame it transmits Spanning Tree Algorithm The 9T122 24 promotes maximum network use in multiple bridge environments A bridge learns the bridge topology of its network from bridge protocol data that it receives from other bridges within the network The bridges then apply the Spamning Tree Algorithm STA to select a root bridge and then determine primary data paths within potential data loop configurations Spanning Tree Algorithm is a hierarchy or tree of priorities that bridges establish between themselves This hierarchy guarantees that primary and redundant data paths are clearly defined at all times so that the network is continuously available to users In a multiple bridge environment one bridge in the network establishes itself as the root bridge As the root this bridge has priority over all other bridges In a Spanning Tree all of the bridges must determine which bridge is the root and then determine their own relative priority within the network 3 3 Operation Flexible Network Bus FN
12. from the shipping box Save the box and packing materials in the event the module must be reshipped 4 Attach one end of the ESD wrist strap packaged with the MMAC Plus chassis to your wrist Plug the other end into the ESD Wrist Strap Grounding receptacle in the lower right corner of the MMAC Plus Chassis shown in Figure 2 1 5 Remove the module from the plastic bag Observe all precautions to prevent damage from Electrostatic Discharge ESD 6 Carefully examine the module checking for damage If any damage exists DO NOT install the module Contact Cabletron Systems Technical Support immediately 7 The modules are installed into the chassis by sliding them into slots and locking down both the top and bottom plastic tabs as shown in Figure 2 1 Take care that the module slides in straight and engages the backplane connectors properly When installing the module ensure that both circuit cards are between the card guides as shown in Figure 2 1 Check both the upper and lower tracks of both cards 2 1 Installation Jack for ESD wrist strap Metal Back Panel Circuit Card Card Guides Warning Ensure that the circuit card is between the card guides Lock down the top and bottom plastic tabs at the same time applying even pressure Figure 2 1 Installing the MicroLAN Module 2 2 The Re
13. l Ethernet Port Interface Module EPIM located on the front of the Environmental Module Through an EPIM connection full SNMP management of the MMAC Plus is available out of band from user data Modules which share the SMB 10 bus periodically send out loop back packets to ensure the validity of SMB 10 In the event a fault is detected on the SMB 10 the SMB 1 can be used as an alternate communication channel by the modules System Diagnostic Controller System Diagnostic Controller This diagnostic controller is composed of a Z 80 microprocessor and it s supporting logic The diagnostic controller is designed to control the power up sequencing of modules monitor the 9T122 24 input and output power parameters keep watch over the main host processor as well as monitor the temperature and control the SMB LANVIEW diagnostic LED Although the diagnostic controller and the main host processor can operate independent of each other if needed they exchange information about each others status and overall module condition The information gathered by the diagnostic controller is available to the network manager via local remote management and the LCD located on the environment module The 9T122 24 have been designed so that in the event of a diagnostic controller fault the modules will continue to function DC DC Converter The DC DC converter converts the 48 VDC on the system power bus to the necessary Operating voltages for its host network se
14. nstallation See the Cautions at the end of this table Table 2 1 Function of DIP Switch Switch Function Description When toggled this switch clears user entered 8 Clear passwords stored in NVRAM and restores the Password default passwords Once reset you can use the defaults or enter new passwords The module uses NVRAM to store user entered parameters such as IP addresses device name etc To reset these parameters to the factory defaults toggle this switch Once reset you can use the defaults or enter new parameters which are stored in NVRAM when the module is powered down and remain there until the switch is toggled again Ring Off One ring of 24 ports factory default Configuration On two rings of 12 ports each Toggling this switch after pulling the board out of the MMAC Plus clears download Force BootP information from NVRAM and forces image Download files to be downloaded from the station configured to act as that modules BOOTP server 1 Caution Do not toggle Switch 8 unless you intend to reset the user configured passwords to their factory default settings 2 Caution Do not toggle Switch 7 unless you intend to reset the user parameters to the factory default settings 2 6 Ring Speed Ring Speed The module defaults to a 16Mbps ring speed on all rings This may be changed though local management Multi Ring Out Capability Any port of the module may be configured as a
15. ring out port through management software In this configuration a stand alone passive concentrator such as an IBM 8228 may be added to the ring as shown in Figure 2 5 This allows for a star wired network with the MMAC Plus at the center Consult the MMAC Plus Local Management Guide for information on configuring the ports 9T122 24 O Q 0000 air a HS IBM 8228 Malte STP Cable NI Figure 2 5 Using a Ring Out Port 2 7 Chapter 3 Operation The 9T122 24 MicroLAN Module provides connectivity between the front panel Token Ring s and the FDDI rings on the backplane FNB 1 or FNB 2 MMAC Plus modules connect to either the Internal Network Bus INB or the Flexible Network Bus FNB bus The 9T122 24 module connects to the FNB bus Shown in Figure 3 1 is a block diagram of the module The front panel may be configured as one Token Ring factory default or as two rings In the two ring configuration the rings function as individual networks each with twelve ports Bridging Routing may occur between these two rings and or to any other MMAC Plus module via the Flexible Network Bus DC DC SMB 1 Converter System Diagnostic Controller SMB 10 Twelve Front Panel r FNB 1 or i96
16. rvices module The diagnostic controller controls the operation of the DC DC converter FNB Interface 1960 Core MMAC Plus modules are designed with one of two attachment policies One allows a module to dual attach to either FNB 1 or FNB 2 the second allows dual attachment to both FNB 1 and FNB 2 The 9T122 24 have one dual attachment to the FNB backplane connecting to either FNB 1 or FNB 2 The module can insert into the ENB or bypass it These flexible configuration options make the MMAC Plus ideal for networks designed to Bridge Route multiple lower speed LANs to FDDI and or networks designed using an FDDI collapsed backbone The i960 core in the FNB module serves two major functions it provides the packet forwarding logic and performs all network management services ENB modules can be configured to run as layer 2 bridges layer 3 routers or as SecureFast Packet Switches It is possible to run the bridging and routing options concurrently but the SFPS option cannot run with bridging and routing The i960 core provides the SNMP protocol stacks as well as support for industry standard MIBs Additionally Cabletron enterprise extension MIBs are supported for each media type Advanced management services such as the Distributed LAN Monitor RMON telnet and network address to MAC address mapping are also provided by the i960 core 3 5 Chapter 4 LANVIEW LEDs The front panel LANVIEW LEDs shown in Figure 4 1 indicate the statu
17. s of the module and may be used as an aid in troubleshooting TOKEN RING 9T122 24 System Status FNB Receive FNB Transmit Token Ring Mac Transmit Token Ring Speed 16mb Token Ring Mac Receive O Link O A O de Ow Figure 4 1 LANVIEW LEDs 4 1 LANVIEW LEDs The functions of the two System Status LEDs System Management Bus SMB and the CPU are listed in Table 4 1 Table 4 1 System Status LEDs SMB and CPU LED Color State Description Green Functional Fully operational Yellow Crippled Not fully operational i e one bad port Yellow Green Booting Blinks yellow and green while booting Red Reset Normal power up reset Red Flashing Failed Fatal error has occurred Off Power off Module powered off The function of the FNB receive LED is listed in Table 4 2 Table 4 2 FNB Receive LEDs LED Color State Red No link Port disabled Red Flashing Link Port disabled Green Link No activity Port enabled Yellow Flashing Activity Flashing rate indicates rate of activity Off No activity The function of the FNB transmit LED is listed in Table 4 3 Table 4 3 FNB Transmit LEDs LED Color State Red Port disabled Red Flashing Fault or Error Flashing rate indicates rate Yellow Flashing Port in standby state Green Flashing Activity Flashing rate indicates rate of activity Off No activity
18. set Switch The Reset Switch The Reset switch is located on the front panel under the top plastic tab as shown in Figure 2 2 It serves two functions e Pressing the reset switch twice within three seconds causes the processor 1960 to reset e Pressing and holding the switch on for three or more seconds causes the module to shutdown Pressing and holding again for three seconds restarts the module SNMP management may be used to disable this switch to enhance module security Reset Switch Figure 2 2 The Reset Switch 2 3 Installation User Accessible Components Figure 2 3 shows the various components that are accessible to the user These consist of an eight position dip switch explained in the next section replaceable PROMs and sockets for RAM These will be used for future upgrades SMB 1 PROM 960 Processor Flash SIMM Socket DIP Switch Boot PROM Shared Packet Memory SIMM Local Program Memory SIMM Socket Figure 2 3 User Accessible Components Setting the Module Card DIP Switch Setting the Module Card DIP Switch An eight switch DIP switch is located on the module card as shown in position 8 in Figure 2 3 and in Figure 2 4 The function of the switches are listed in Table 2 1 rrr 12345678 Figure 2 4 Location of Module DIP Switch 2 5 I
19. t Information Base MIB Support The 9T122 24 module provides MIB support including IETF MIB II RFC 1213 IETF RMON MIB RFC 1271 and 1513 IETF Bridge MIBs RFC 1493 and 1525 IEEE 802 5 Token Ring MIB RFC 1231 Cabletron Enterprise MIBs For a complete list of supported MIBs refer to the release notes provided in the module package Ring Security This feature prevents unauthorized stations from attaching to the ring Using Local or Remote Management the module may be configured as to which MAC addresses are allowed to operate on the ring Multi Ring Out Capability With this feature any port of the module may be configured as a ring out port through management software In this configuration a stand alone passive concentrator such as an IBM 8228 MAU may be added to the ring Telnet A telnet session can be set up with the module to provide access to the Local Management screens LANVIEW LEDs The 9T122 24 use LANVIEW the Cabletron Systems built in visual diagnostic and status monitoring system With LANVIEW LEDs you can quickly identify the device port and physical layer status at a glance Hot Swapping The 9T122 24 can be installed or removed from the chassis while the MMAC Plus is powered up without affecting the operation of the remaining modules in the chassis Features sm O O cru nsO O Om OF Of O O ON OF CA AE AENA OR OF Os OF Ow OF O
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