112255 112244, Routing Loops | Cabletron Systems SmartCell 6A000

Setting Up Routes

Switch Administration

IISP routes between A, B, and C can be defined by

11:22: + group identifier byte

Collectively, groups A, B, and C represent the super-group "A-B-C." Any group from outside A-B-C can define a route to A-B-C by using just 11:22.

11:22:33
11:22:33:00	A
11:22:33:01
11:22:55	11:22:44
11:22:55:01	11:22:44:01	B
11:22:55:01		B
C
11:22:55:00	11:22:44:00
super-group = 11:22:
another
super-group

Figure 4-2 Hierarchical network design using netprefixes and IISP routes

Routing Loops

Be careful not to create "ambiguous routes" (that is, routes defined by too few bytes). For instance, if a route is defined within the super-group A-B-C by specifying 11:22 as the destination, a routing loop is created. An additional byte is necessary to specify to which group (A, B, or C) the destination belongs.

4-8 SmartCell 6A000 User Guide

Image 42

Cabletron Systems SmartCell 6A000 manual 112255 112244, Routing Loops

Contents

SmartCell 6A000 User Guide Order number Part number 04-0045-01 Rev. a Ii SmartCell 6A000 User Guide FCC Class a Notice Declaration of Conformity Addendum Safety Information Class 1 Laser Transceivers Fiber Optic Protective Caps Regulatory Compliance Summary Safety Revision History Table of Contents Troubleshooting Acronyms Index Table of Contents Xii SmartCell 6A000 User Guide List of Figures List of Figures Xiv SmartCell 6A000 User Guide List of Tables List of Tables Xvi SmartCell 6A000 User Guide Introduction Introduction SmartCell 6A000 User Guide Inspecting the Switch Switch Installation and SetupUnpacking the Switch Check Accessory Carton Contents 6A000-04 and 6A000-02 front panels Installing the Switch Mbps STS-3c/STM-1 UTP5, 4 Ports Installing the Switch Installing the SmartCell 6A000 Configuring the Switch Adapters provided for connecting to the switch 6A000 console and network connections Using the Console Console Commands Adding and Modifying ClientEnter Console Help ServerAddress 390000000000000000001441800020d414418001UNIATMAddress 390000000000000000001441800020d414418000 IP Over ATM and Lane Creating AN IP Over ATM Vlan ATM Addressing for IP over ATM Ipatmarp Creating AN Emulated LAN SmartCell ZX # add wellknownaddress ELANType802.3 The default Ethernet is used ATM Addressing for LAN Emulation ELANs Across Multiple Switches Switch ClientsElan1 Switch Administration Backing UP and Restoring Switch ConfigurationPath /backdir/config-1 Upgrading Operating Software Path server.ima Setting UP Routes Unsuccessful UpdateUsing the df Command to Recover SmartCell ZX # show netprefix a4 Iisp RoutingCreating Iisp Routes ATMAdress 39000000000000000000144780 SW2s netprefix Iisp Routes Among Multiple Switches ATMAdress 39000000000000000000141500 SW3s netprefixATMAdress 39000000000000000000144180 SW1s netprefix Default Iisp Routes Iisp routes between multiple switches For example, create a default Iisp route from port B1 Iisp Routes and Network Topology 112255 112244 Routing Loops Iisp Metrics and Load Sharing SigConfig and PortAutoDetect with Iisp RoutingUNI Routes UNIATMAddress 440000000000000000001441800030E514418000 IP Routing Logs and Alarms To see the route, enter the show route command on SW2 How Log Messages and Alarm Messages Differ Log Message SystemViewing and Filtering Messages Setting UP PVC Connections Console 100 Connecting to Local Client Through Point-to-Point PVCPoint-to-Point PVCs 10.1.1.0 Point-to-Multipoint PVCs Non-zero VPIs Show vccmask SmartCell ZX # set portconfig a1 SmartCell ZX # show portconfig a1 Traffic Management Traffic Descriptors 8000 5000 Call Admission Control Policy Class of Service Queues # set cacparams PortNumberALL Port ID Queue Class of Service Queue Allocation Guidelines SmartCell ZX # show switchtrafficcongestionEFCI, EPD, and RM Thresholds Traffic Management Troubleshooting Troubleshooting IP Over ATMLogprint off command Troubleshooting LAN Emulation Troubleshooting Congestion Diagnosing CongestionGlobal Congestion Port Congestion Troubleshooting TroubleshootingCongestion Troubleshooting Congestion Appendix a Features and Specifications Hardware ComponentsFront Panel CPU Module Figure A-1 Front panel Switch Modules MSM and ESM Input/Output Port Modules Module TypeCharacteristics Port Numbering Figure A-3 Group and port identifiers Signaling and Routing FeaturesSwitch Module 3 I/O Modules Management Connection ManagementLAN Servers and Clients ATM Forum LAN Emulation Lane Specifications Technical SpecificationsPhysical Specifications ATM Port Specifications Standards Specifications CPU Serial Port Pin-Out Descriptions RJ-45 DB-25 Pin Color Description Table A-11 RJ-45 to DB-25 Adapter Modem Adapter Appendix A-12 SmartCell 6A000 User Guide Appendix B Smartcell 6A000 and Snmp Internet MIB Hierarchy Zeitnet Proprietary MIB Figure B-1 Internet MIB Hierarchy Interpreting the Object Identifier Figure B-2 ZeitNet Private MIBs Proprietary MIB Functions MIB Exceptions Console Commands That Affect the AgentClient for Snmp Management Non-Conformance Not Supported SmartCell 6A000 User Guide Appendix B-7 Page Appendix C Technical Support FAX ServiceElectronic Services Telephone Assistance Hardware Warranty Software WarrantyRepair Services Appendix D Acronyms CBR CACCan Ccitt DVT DCCDTE NET FTP FCSFifo Ieee IPX IOMIP/ATM ITU-TSS LIS LESLeselan LLC NIC NetbeuiNFS NLS PMP PDUPMD PPD SAR-PDU SaalSAR SBE TDM TaxiTCP Tftp VCL VCCVCI Vlan Acronyms Appendix D-12 SmartCell 6A000 User Guide Add wellknownaddress command 3-6 Address Index Setting up routes Vlan Index SmartCell 6A000 User Guide