Cabletron Systems SmartCell 6A000 manual ATM Addressing for LAN Emulation

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6.Configure the ATM interface or adapter for all end nodes and edge devices. Typically, configuration consists of specifying LAN Emulation as the protocol, assigning the device an IP address that corresponds to the subnet of the switch's client, and indicating that you want the device to use the Well Known LECS Address or the ILMI acquired LECS address as the address for the LECS.

7.Messages are displayed on the console as each end device registers with the LES and BUS. You can check connectivity by pinging between end nodes.

Your ELAN is now operational. Additional ELANs can be created in the same way. See Chapter 4, "Switch Administration." for information about SmartCell 6A000 switch operations and maintenance.

Note While it is possible for a single ELAN on the SmartCell 6A000 switch to support multiple subnets, in general, switch performance is best and management easiest when the "One-subnet-per-ELAN" rule is observed.

3.2.1ATM Addressing for LAN Emulation

The SmartCell 6A000 provides a default format for ATM addresses used by LAN emulation. The default format is constructed as follows:

netprefix + the MAC address of the device + a Selector Byte

Where the netprefix is constructed from

39 + nine zero bytes + the last three bytes of the switch's MAC address

The Selector Byte specifies to whom the ATM address belongs.

•00 = LEC

•01 = LECS

•02 = LES or BUS

For instance, if the switch's MAC address is 00:20:D4:14:41:80, then the 20-byte ATM address of the LECS is:

39:00:00:00:00:00:00:00:00:00:14:41:80:00:20:D4:14:41:80:01

Where

•39:00:00:00:00:00:00:00:00:00:14:41:80 = netprefix

•00:20:D4:14:41:80 = the switch's MAC address

•01 = the Selector Byte indicating that this is the LECS

Additionally, within both the LES and BUS addresses, the byte that corresponds to the last byte of the MAC address is summed with the ELAN number. For example, the ATM address of the LESs on ELAN000, ELAN001, and ELAN010 are

•LES for ELAN000 = 39:00:00:00:00:00:00:00:00:00:14:41:80:00:20:D4:14:41:80:02

•LES for ELAN001 = 39:00:00:00:00:00:00:00:00:00:14:41:80:00:20:D4:14:41:81:02

•LES for ELAN010 = 39:00:00:00:00:00:00:00:00:00:14:41:80:00:20:D4:14:41:8A:02

SmartCell 6A000 User Guide 3-5

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Contents Order number Part number 04-0045-01 Rev. a SmartCell 6A000 User GuideIi 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 Unpacking the Switch Switch Installation and SetupInspecting the Switch Check Accessory Carton Contents6A000-04 and 6A000-02 front panels Mbps STS-3c/STM-1 UTP5, 4 Ports Installing the SwitchInstalling the Switch Installing the SmartCell 6A000 Adapters provided for connecting to the switch Configuring the Switch6A000 console and network connections Console Commands Using the ConsoleAdding and Modifying ClientEnter Console Help ServerAddress 390000000000000000001441800020d414418001UNIATMAddress 390000000000000000001441800020d414418000 Creating AN IP Over ATM Vlan IP Over ATM and LaneIpatmarp ATM Addressing for IP over ATMSmartCell ZX # add wellknownaddress Creating AN Emulated LANELANType802.3 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 Path server.ima Upgrading Operating SoftwareSetting UP Routes Unsuccessful UpdateUsing the df Command to Recover Creating Iisp Routes Iisp RoutingSmartCell ZX # show netprefix a4 ATMAdress 39000000000000000000144780 SW2s netprefixIisp Routes Among Multiple Switches ATMAdress 39000000000000000000141500 SW3s netprefixATMAdress 39000000000000000000144180 SW1s netprefix Iisp routes between multiple switches Default Iisp RoutesIisp Routes and Network Topology For example, create a default Iisp route from port B1Routing Loops 112255 112244UNI Routes SigConfig and PortAutoDetect with Iisp RoutingIisp Metrics and Load Sharing UNIATMAddress 440000000000000000001441800030E514418000IP Routing To see the route, enter the show route command on SW2 Logs and AlarmsHow Log Messages and Alarm Messages Differ Log Message SystemViewing and Filtering Messages Console Setting UP PVC ConnectionsPoint-to-Point PVCs Connecting to Local Client Through Point-to-Point PVC100 10.1.1.0Point-to-Multipoint PVCs Show vccmask Non-zero VPIsSmartCell ZX # show portconfig a1 SmartCell ZX # set portconfig a1Traffic Descriptors Traffic Management5000 8000Call Admission Control Policy # set cacparams Class of Service QueuesPortNumberALL 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 Figure A-1 Front panel CPU ModuleInput/Output Port Modules Switch Modules MSM and ESMModule TypeCharacteristics Figure A-3 Group and port identifiers Port NumberingSwitch Module FeaturesSignaling and Routing 3 I/O ModulesLAN Servers and Clients Connection ManagementManagement ATM Forum LAN Emulation LaneSpecifications Technical SpecificationsPhysical Specifications Standards Specifications ATM Port SpecificationsRJ-45 DB-25 Pin Color Description CPU Serial Port Pin-Out DescriptionsTable A-11 RJ-45 to DB-25 Adapter Modem Adapter Appendix A-12 SmartCell 6A000 User Guide Internet MIB Hierarchy Appendix B Smartcell 6A000 and SnmpFigure B-1 Internet MIB Hierarchy Zeitnet Proprietary MIBFigure B-2 ZeitNet Private MIBs Interpreting the Object IdentifierProprietary MIB Functions Client for Snmp Management Console Commands That Affect the AgentMIB Exceptions Non-ConformanceNot Supported SmartCell 6A000 User Guide Appendix B-7 Page Electronic Services FAX ServiceAppendix C Technical Support Telephone AssistanceHardware Warranty Software WarrantyRepair Services Appendix D Acronyms Can CACCBR CcittDTE DCCDVT NETFifo FCSFTP IeeeIP/ATM IOMIPX ITU-TSSLeselan LESLIS LLCNFS NetbeuiNIC NLSPMD PDUPMP PPDSAR SaalSAR-PDU SBETCP TaxiTDM TftpVCI VCCVCL VlanAcronyms Appendix D-12 SmartCell 6A000 User Guide Index Add wellknownaddress command 3-6 AddressSetting up routes Vlan Index SmartCell 6A000 User Guide