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Cabletron Systems 9A100 manual Troubleshooting Ip Over Atm

Models: 9A100

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5 TROUBLESHOOTING

This chapter provides basic troubleshooting for diagnosing and fixing problems with VLAN, emulated LANs, and ATM traffic congestion.

5.1TROUBLESHOOTING IP OVER ATM

You have configured an IP over ATM VLAN, but your network applications are not working. Use these questions and tests to help determine the cause of the problem.

1.Check for connectivity: Try pinging between end nodes and from the SmartSwitch 9A100 (using start ping) to its end nodes. If you cannot ping, check physical connectivity (disconnected cable and so on).

2.Check IP routes and addresses.

•Use the show route command to check the SmartSwitch 9A100 route table.

-Are the destination addresses correct for the specified gateways?

-Are there any routing loops?

-Are one or more of the destination addresses mapped to the wrong subnet?

•Use show client (ARP server is on SmartSwitch 9A100) to check the local client.

-Does the client have the correct IP address?

-Is the subnet correct? Is the ATM address correct?

-Is the server type correct?

•Check end node configurations.

-Are end nodes configured correctly?

3.Check ARP statistics.

•Use show ipatmarp (if the ARP server is on the SmartSwitch 9A100).

-Are there entries in the table?

-Are the ATM addresses correct?

•Use show clientarp (ARP server is not on SmartSwitch 9A100) to check local client’s ARP Table.

-Are there entries in the table? If not, recheck client and end node configuration.

-Are the ATM addresses correct?

SmartSwitch 9A100 User Guide 5-1

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Cabletron Systems 9A100 manual Troubleshooting Ip Over Atm

Contents

Part Number 04-0049-01 Rev. A Order Number SmartSwitch 9A100 User Guide35 Industrial Way Rochester, NH 03866 USA 603 Printed in the United States of America SmartSwitch 9A100 User GuideFCC CLASS A NOTICE DOC CLASS A NOTICESmartSwitch 9A100 User Guide Mr. J. Solari DECLARATION OF CONFORMITY ADDENDUMMr. Ronald Fotino Rochester, NH. U.S.ALASER RADIATION AND CONNECTORS SAFETY INFORMATION CLASS 1 LASER TRANSCEIVERSFIBER OPTIC PROTECTIVE CAPS REGULATORY COMPLIANCE SUMMARY SAFETY Description REVISION HISTORYDate RevisionIntroduction TABLE OF CONTENTSSwitch Installation and Setup Switch AdministrationTechnical Support TroubleshootingSpecifications Agent SupportIndex Acronymsxii SmartSwitch 9A100 User Guide TABLE OF CONTENTSLIST OF FIGURES List of Figures xiv SmartSwitch 9A100 User GuideLIST OF TABLES List of Tables xvi SmartSwitch 9A100 User Guide1 INTRODUCTION Introduction 1-2 SmartSwitch 9A100 User Guide2 SWITCH INSTALLATION AND SETUP 2.1 UNPACKING THE SWITCH2.1.1 Check Accessory Carton Contents Figure 2-1 SmartSwitch 9A100-04 front panel 2.2 INSPECTING THE SWITCH2.2.1 DS3 and E3 I/O Module Configuration 2.3 INSTALLING THE SWITCH Installing the Switch Figure 2-2 Installing the SmartSwitch 9A100Switch Installation and Setup SmartSwitch 9A100 User Guide2.4 CONFIGURING THE SWITCH Start the dumb terminal or PC and its terminal emulation software 2.5.1 Console Commands 2.5 USING THE CONSOLEAll console commands use the syntax traffic 2.5.2 Console Time-out2.5.3 Creating an Alias SmartSwitch # set consoletimeout2.5.4 Ambiguous Commands “pnnin” is ambiguousI meant PnniNode, so I enter number three 3 from the list 2.5.5 Console Help 2.6 SMARTSWITCH ATM ADMINISTRATORU Alarm management U Switch discovery 2.6.1 Installation Steps Default Password 2.6.2 Starting SmartSwitch ATM Administrator the First Time2.6.3 Accessing Online Help Access LevelSmartSwitch ATM Administrator 2-16 SmartSwitch 9A100 User GuideSwitch Installation and Setup 3.1 CREATING AN IP OVER ATM VLAN 3 IP OVER ATM AND LANE3-2 SmartSwitch 9A100 User Guide F›amV˜m˜,6˜pF˜1˜=/2˜˜,6˜3F˜1˜m=˜/2 3.1.1 ATM Addressing for IP over ATM 3.2 CREATING AN EMULATED LAN3. Create a client for the switch on the ELAN. For example, enter 390000000000000000001441800020D414418202 390000000000000000001441800020D414418100LECS Addr Source 390000000000000000001441800020D414418001LES for ELAN000 = 390000000000000000001441800020D414418002 3.2.2 ELANs Across Multiple Switches3.2.1 ATM Addressing for LAN Emulation 390000000000000000001441800020D4144180013.2.3 Switch Clients SmartSwitch# add laneclientelan1 3-8 SmartSwitch 9A100 User Guide F›amV˜m˜h¤d›F=˜/2˜˜,6˜3F˜1˜m=˜/2 4.1 BACKING UP AND RESTORING SWITCH CONFIGURATION 4 SWITCH ADMINISTRATION4.2.1 Creating an IISP Route 4.2 ATM ROUTINGIISP Routing Considerations Figure 4-1 IISP route across PNNI domain Figure 4-2 Routes needed for a second IISP switch4.2.2 UNI Routes 4.2.3 Route Metrics 4.3 IP ROUTING Administrative Weight and Parallel RoutesVLANs. If you need to create routes between VLANs on your 4.4.1 Event Categories 4.4 EVENTS AND ALARMS4.4.2 Viewing Events and Alarms 4.5 PVC CONNECTIONS 4.4.3 Deleting Events and Alarms4.5.1 Point-to-Point PVCs 4-12 SmartSwitch 9A100 User GuidePVC Connections we set everything to zero 4.5.2 Point-to-Multipoint PVCswe take the default values this is the forward descriptor4.5.3 Connecting to Local Switch Client Through a PVC VPI Values 4.5.4 Non-zero VPIsVCC Mask Index VPI Bits4. Use show portconfig to see the change to port A1 4.6.1 Traffic Descriptors 4.6 TRAFFIC MANAGEMENTTraffic Descriptor with CLP, Tagging, and no SCR No Traffic DescriptorTraffic Descriptor with no CLP and no SCR Traffic Descriptor with CLP, no Tagging, and no SCR4.6.2 Call Admission Control Policy 4-20 SmartSwitch 9A100 User Guide Traffic ManagementSwitch AdministrationQueue 2 - Real Time Variable Bit Rate rt-VBR SmartSwitch # set porttrafficcongestionQoS corresponds to the queues as follows Queue 1 - Constant Bit Rate CBR4.6.3 EFCI, EPD, and RM Thresholds Quality of Service Queue Allocation Guidelines4.7 UPGRADING AND CHANGING SOFTWARE 4.7.1 Accessing the Boot Load PromptRun switch software 4.7.2 Boot Load CommandsChange default boot load image Display boot load configuration4.7.3 Upgrading Boot Load Software boot PROMflash RAM 5. Set up the TFTP/Bootp server tables or equivalent file with Changing the Default Boot Load Image 4.7.4 Upgrading POST Diagnostic Software=df s 4.7.5 Upgrading Switch Operating SoftwareUnsuccessful Update 4.7.6 Using the Update Firmware Command4.8 SAVING CORE DUMPS 4-30 SmartSwitch 9A100 User GuideSaving Core Dumps set CoreDump command tftpboot/bobr/corelogin name on the server passwordIf a system failure occurs while the core dump feature is enabled, the SmartSwitch 9A100 console appears similar to the example below. The SmartSwitch 9A100 then begins sending images of its memory to the core dump files on the TFTP server 5.1 TROUBLESHOOTING IP OVER ATM 5 TROUBLESHOOTING5.2 TROUBLESHOOTING LAN EMULATION Troubleshooting LAN Emulation5-2 SmartSwitch 9A100 User Guide 5.3 TROUBLESHOOTING PNNI LINKS 5.4 TROUBLESHOOTING CONGESTION 5.4.1 Diagnosing Congestion5.4.2 Global Congestion Troubleshooting Congestion 5.4.3 Port CongestionTroubleshooting Congestion 5-6 SmartSwitch 9A100 User GuideTroubleshooting s 832˜62 APPENDIX A SPECIFICATIONSConsole Terminal Figure A-1 SmartSwitch 9A100 front panelA-2 SmartSwitch 9A100 User Guide Front Panel¢ %+2,%/˜96%,,%,329 A-4 SmartSwitch 9A100 User Guide Table A-4 ATM port specificationsTable A-5 Protocols standards and specifications Technical SpecificationsTable A-7 RJ-45 to DB-9 adapter PC serial port adapter Table A-6 Management standards and specificationsManagement Protocol Supported MIBsTechnical Specifications A-6 SmartSwitch 9A100 User GuideSpecifications B.1 MIB, SMI, MIB FILES AND INTERNET MIB HIERARCHY APPENDIX B AGENT SUPPORTFigure B-1 Internet MIB hierarchy B.1.1 ZeitNet Cabletron Proprietary MIBsFigure B-2 ZeitNet Private MIBs B.1.2 Relation Between Object Identifier and the Represented ValueB.1.4 Supported SMI Formats B.1.3 Supported protocolsTable B-1 Zeitnet proprietary MIB groupings B.1.5 Zeitnet Cabletron Proprietary MIB GroupsB.1.6 SmartSwitch 9A100 MIB Support B.1.7 MIB ExceptionsNon-Conformance Not Supported B.2 MANAGING THE SmartSwitch 9A100B.2.1 Console Commands that Affect the Agent C.1 TELEPHONE ASSISTANCE C.2 FAX SERVICEC.3 ELECTRONIC SERVICES APPENDIX C TECHNICAL SUPPORTHardware Warranty C.5 HARDWARE WARRANTYC.6 SOFTWARE WARRANTY C.7 REPAIR SERVICESAAL3/4 APPENDIX D ACRONYMSAAL1 AAL2CCITT BOOTPCAT-3 CAT-5E-NET DS-0DS-1 DS-3IETF FIFOIEEE ICMPISDN ILMIIP/ATM ITU-TSSMB/S LESELANOAM&P NETBEUINRT-VBR NSAPPTSE P-NNIPROM PTSESAR-PDU RS-#RT-VBR SAALUTOPIA SVCCTAXI TFTPVBR/RT VBR/NRTVLAN Acronyms D-12 SmartSwitch 9A100 User GuideNumerics INDEXevent messages for emulated LANs managing the SmartSwitch 9A100 multiple switch emulated LANsLAN emulation addressing resource management cells SmartSwitch ATM Administratorthreshold settings for anti-congestion I-6 SmartSwitch 9A100 User Guide ZeitNet Cabletron proprietary MIBsIndex