Connections | 3Com 6416SW guide

Setting-Up	ATM	Trunk	Connections
To configure a		trunk between two ATM subnetworks or two ATM			clusters in the		same
subnetwork over a virtual path (VP) service				provider, you	must	configure a	logical link
between a pair of ATM ports. The ATM ports must both use					a network-to-network		(NNI)
interface	and	be on	the boundary hub of	each subnetwork	or	cluster.

Figure 3-3 shows an example of logical links between pairs of ATM clusters from a boundary hub in each cluster.

Figure 3-3. ATM Logical Links Used to Connect ATM Clusters

3-8 ONcore ATM Switch/Control Module: Installation and User's Guide

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3Com 6416SW manual Connections, ATM Logical Links Used to Connect ATM Clusters

Contents

Document Number Printed March Model Number 6416SW Canadian Emission Requirements VDE Class B Compliance Vcci Class 1 Compliance Iii Fiber Cable Classification UK General Approval StatementDisclaimer Copyright StatementPage Page Contents Entering ARP MIB LEC PingIBM Codes Upload Mail TechnicalPage Figures Page Tables TablesPage How to Use This Guide Guide Network AIX Appendix E, ONcore ATM Address Formats Prerequisite Knowledge Convention Bold TextBackpressure Related Documents 3Com Documents Reference Documents Software Subscription Service Warranty InformationSupport 3Com Technical Publications SupportCSO Page ATM ONcore Subsystem ATM Backplane ATM Wiring Star Topology in ATM Backplane 17-slot model Workgroup Switch Reference Guide Module Type Virtual Connection Connection ModeType UNI NNITRS SDUPage Ilmi ATM Subsystem Traffic Management DMM ATM Subsystem Chassis ManagementShow Switch/Control ONcore Switching Hub/CELLplexRole Reference Guidefor details Using Benefits LAN Emulation Client LEC MaxPage Installation Start Unpacking the Module 3Com ONcore Hub Installation Guide17-00362 6416SW ONcore Module Ejectors Subsystem Attaching a Terminal to 6416SW Save Verifying Normal 6416SW 4000 Front Panel Front Panel of 6416SW Module Meaning of the LEDs Color StateOFF Stby LED Name Color State Maint Reset Console Port Switching Hub/CELLplex 4000 ATM Command Reference GuidePin RS-232 Auxiliary Port Pin Number ATM Addressing Components of an ATM Campus Network Network Components ATM Campus Network ONcore ATM Switch/Control Module Installation Users Guide ATM ClusterSSI ATM User DevicePage Network Interfaces UNI 6416SW Connections ATM Logical Links Used to Connect ATM Clusters Routes StaticSingle Subnetworks Between Example Configuring a Connection Between User Devices SET LogicallinkPage SET PVC Reference GuideforPage Normal Ascii mode Overview Slip mode Slip Entering 6416SW Commands Command Reference GuideCommand Reference Guide. For Before You Start Keyboard Functions Getting Help Following response is displayed Command Completion Setting Mode Configuration Slip ModeBaud Returning to Normal Mode Using TCP/IP V2.1.2 for IBM DOS V7 no Tftp support Using TCP/IP for AIX versionSlip Support V4.0 V4.1 For Using TCP/IP V2.0 for OS/2 V3 WarpPort Switch ViaClassical IP LAN Emulation Logon Procedure Switch/Control Module Installation Users Guide Terminal Settings Saving Reconfigured Configuration Console Settings You use a modem to connect Configuring ATM Switch/Control Module Configuration Summary You Want external LAN Emulation Configuration Server Priority SET Device Defaultgateway ConfigurationserverSET Device Ipaddress SET Device Arpserver Setting 6416SW Passwords Administrator Password ONcoreATM save device User Passwords Setting Internal Clock Switch Name 6416SW Console Prompt ServiceSuggestion Console Timeout SET Terminal Timeout Address 6416SW Connecting ATM media Modules Port PortsDisabling ONcore Switching Reference Parameters Carry Out You want toWorkstation 802.3 IP only LAN Emulation Client LE only LES After theeth Parameter, the other parameters Default Gateway IP & LE ARP Server IP only Alerts Ilmi MIB VCI WKA Atmaddress Saving Configuration Settings and Logging Off Tftp Settings for the Device or Terminal These Values Cancel Them Using Revert command before You can log off Working With Configuration Settings Revert Displaying Configuration Settings Atmesi Enter Page Modifying Configuration Settings ATM IX OK Network Switch Management Subsystem Campus Environment Managed Files WithAre Command Reference Guidefor more Settings. ONcoreSee theSwitching Hub/CELLplexSecurity Control SLIP/TFTP OperationsWAN Inband Operations Upgrading 6416SW Microcode ATM Modules Uploading DumpsDump TRS Upload Log Uploading TracesUpload Inband Out-of-band Operations MaintainPage Chapter Troubleshooting LED Phase Active LED Troubleshooting Prerequisites Diagnosing Problems from the ATM Media LEDs Steps to Take Check that Power Slot Has Not Been Disabled. Issue After HubStays Lit For Error LED lit red to indicate a severe error Steps to Take Active LED is not lit Steps to Take Command LED is litIs lit Stays An ATM module is not in service Steps to Take Due toModule Set to Problems Diagnosing Problems Concerning the 6416SW Console You Not workEnter First Bar Rest Password Settings Are NotNot Last With Modules Ports Status Unknown Status Error Status No Activity Status Not In Service UNI port Status Not in Service SSI Port Steps to Take DescONcoribedSwitchingtheHub/CELLplex ATM Switch/Control Module Installation and Users Guide Attached to ATM Sure That Hub belongs Same Command Specify Port command to make sure that 3000 992 ONcore Cannot Ping the ARP Servers and Vice-versa Cause CodeNot Activity Code Client Steps TakePing ARP Okay Vice-versa Cannot Ping another ARP Client Cannot Ping the ARP Server Over Each Cause InitializeCannot Cause Codes 16/31 18/102 Switching Hub/CELLplex StatusFailed LES/BUS Administrative Problems Netview/SNMP/Telnet Station Steps Take File already exists/file-already exits MessageFile too big/file-too-big Your ONcore hub File MessageFlash memory failure/hardware-error Problems Environment Stations TalkBridges After Minutes, From the LES validOnly for IBM proprietary LAN emulation Valid only for Valid At workstation reboot the ATM adapter initialization failedEmulation No Traffic in a Client Environment Steps TwoStation located Proprietary Other Problems Have No problemsFail Frames are lost Clients SDH Redirecting Received Cells Transmit Side Now From ATM Connection Problems Command to make Sure that Logical link settings No Connection Between Two ATM Subnetworks Steps to Take Show Device Field Contents UsingTrap Your Troubleshooting Phase 1 and Phase 2 ProblemsContacting Hub/CELLplex 4000 ATM Command Reference Guide Show DEVICE, Show HUBHUB ALL Show HUB Show StaticroutePage General Specifications Electrical Specifications Environmental Specifications Appendix B. RS-232 Cable Modem Requirements Signal Name Description RS-232 ConnectorRS-232 Cable Requirements CD1 RD2 DTR GND DSR RTS CTS Pin/9-Pin CableNot Used RTS CTS DTR DSR GND Pin/25-Pin CableCTS RTS DSR Null-Modem Interposer Interposer Modem Attachment Modem Cable Modem Configuration Modem RequirementsModem must be 100% Hayes-compatible Hangup Figure B-6. Example IBM 7855-10 Modem Configuration Appendix C. Error Information Codes Error Codes for Clear Causes Error CodeVersion Decimal Hex Cause Decimal Hex Networks Maintenance Codes Table C-2 Codes ErrorMeaning Appendix D. Configuring AIX for Download Upload Operations IsnotPage Appendix E. ONcore ATM Address Formats CcittPage Network Prefix AFI ICD/DFI/AA Area End System Part Page Appendix F. Technical Support Mail Technical Support Online Technical SupportWorld Wide Web Site Support from Your Network Supplier Country Support from 3ComISD RMA Returning Products for RepairFax Accessing the 3Com MIB and atswitch.mib 3Com Technical Publications Numerics IndexX-1 SET Terminal Timeout IndexX-2 IndexX-3 IndexX-4 NNI IndexX-5 Ports IndexX-6 Snmp IndexX-7 UNI