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Hitachi US7070447-001 HiSpeed Switch Troubleshooting Guide, Draft Level-Hitachi Confidential

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Draft Level—Hitachi Confidential

HiSpeed Switch Troubleshooting Guide

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Hitachi manual HiSpeed Switch Troubleshooting Guide, Draft Level-Hitachi Confidential, US7070447-001, Rev

Contents

Troubleshooting Guide HiSpeed Fast Ethernet SwitchYour name, address, telephone, and fax number A description of any commands entered and the resulting output#&$$% Type of equipment, serial number, and software version numberHardware Diagnostics Table of ContentsHiSpeed Switch Chapter IntroductionChapter Methods of Managing the SwitchChapter Cabling Fundamentals of NetworkingBridging Concepts Troubleshooting at the MAC LayerChapter ChapterChapter Troubleshooting at the Network Layer ChapterBasic ATM Concepts Chapter FDDI ConceptsIndex US7070447-001 List of Figures US7070447-001 List of Tables US7070447-001 Basic Troubleshooting Tips Chapter Introduction Purpose of the GuideHow to Contact Tech Support If using a browser, type in the following URLs to download the files HiSpeed Switch Troubleshooting Guide Draft Level-Hitachi ConfidentialUS7070447-001, Rev Chapter HiSpeed Switch What is the HiSpeed Switch? Basic Product Features SupportedAvailable Configurations Base model configurations HS140/150-010 Model HS140/150-100 ModelExpansion Modules HiSpeed switch expansion modulesUpLink Modules Table 2-3. Uplink modules for the HS15-010 and HS150-100Chapter Hardware Diagnostics Observing LEDsReset Button LEDsReset Button LED statusRJ-45 LEDs LEDs on FX portsThere is no link present on the port Boot Prom HiSpeed Memory, Boot Prom, Flash ComponentsFactory Switch Settings MemoryHiSpeed Switch Troubleshooting Guide Ethernet port settings autonegotiation is ON Spanning Tree is enabledThese settings provide for switching in a single broadcast domain Draft Level-Hitachi ConfidentialChapter Cabling Basic Connections10BASE-TX Ports Table 4-1. RJ-45 Connector pin assignments10/100BASE-TX Ports 100BASE-FX PortsConsole Port Cabling Draft Level-Hitachi ConfidentialUS7070447-001, Rev HiSpeed Switch Troubleshooting Guide Draft Level-Hitachi ConfidentialUS7070447-001, Rev Chapter Fundamentals of Networking Doc Part Number, Version NumberExamples of Physical Layer devices are repeaters and hubs Layer 1 Physical LayerLayer 2 Data Link Layer Layer 3 Network Layer Examples of Layer 2 devices are bridges and switchesExamples of Layer 3 devices are routers Layer 4 Transport LayerHiSpeed Switch Troubleshooting GUide Draft Level-Hitachi ConfidentialDoc Part Number, Version Number Using the Console Port Chapter Methods of Managing the SwitchCLI Command Line Interface SNMP using HiView’s Graphical User Interface GUIUsing a Telnet Session Troubleshooting a Console ConnectionTroubleshooting a Telnet Session Troubleshooting the Login ProcedureLogging In HiView Switch Management Windows 95/Windows NTWindows 95/NT UNIXHiView Tips UNIXSNMPC Issues Troubleshooting HiViewTroubleshooting Network Management software on the HiSpeed switch validMeterWare Issues EXAMPLE“ Reload Now”again MIB CompilerDraft Level-Hitachi Confidential Note Viewing Hitachi’s private MIBs requires further testingFigure 6-2. Fig2. MIB Browser Doc Part Number, Version NumberSNMPTalk Issues Draft Level-Hitachi ConfidentialDoc Part Number, Version Number Chapter Bridging Concepts Basic Bridging Concepts How Spanning Tree WorksFigure 7-1. Using Spanning Tree Using Spanning Tree to eliminate ata loopingTroubleshooting Bridging Issues To disable Spanning Tree on the switch, type vbridge/config/filter CLI Commandsvbridge/config/bridge vlan# vbridge/show/fwtHiSpeed Switch Troubleshooting Guide Draft Level-Hitachi ConfidentialUS7070447-001, Rev Chapter VLAN Concepts VLANs provide some of the following benefits Reduced costs Troubleshooting VLANs Problem Cannot ping a users on a different VLANVLAN Tips Useful CLI CommandsVLAN Entries Chapter Troubleshooting at the MAC Layer Ethernet Physical Media Specifications Common Ethernet ErrorsEthernet Tips Troubleshooting Ethernet Problem Network is experiencing a large number of packet lossesCLI Commands HiSpeed Switch Troubleshooting GUide Draft Level-Hitachi ConfidentialDoc Part Number, Version Number Chapter Troubleshooting at the Network Layer IP Internet Protocol Other IP-related Services RIP Routing Information ProtocolDefault Route Route Cache Forwarding vs. IP ForwardingStatic Routes vs. Dynamic Routes Host Unreachable Common ICMP Destination Unreachable MessagesNetwork Unreachable Port UnreachableTroubleshooting IP Problem Performance is slow when routing across different networksCLI Commands Problem Cannot establish a telnet session to the switchChapter Basic ATM Concepts Figure 11-1. VPI/VCIPermanent Virtual Circuits vs Switched Virtual Circuits LAN Emulation LANELAN Emulation Server LES LAN Emulation Configuration ServerLAN Emulation Client LEC Broadcast and Unknown Server BUSClassical IP over ATM CIP Point-to-Point Bridging PTOPFigure 11-3. ATM CIP HiSpeed switch TrunkingHiSpeed switch HiSpeed switchHitachi HiSpeed ATM Specifications ATM Troubleshooting TipsATM/CONFIG/MODIFY port Troubleshooting LANEATM/CONFIG/CREATE/lec lec id PORTSERV/CONFIG/create 34 vpsTroubleshooting CIP Verify the following using /ATM/SHOW/connectionVLAN/SHOW/VLAN ATM/SHOW cip cip id /VLAN/SHOW/routerATM/SHOW cip cip id /VLAN/SHOW/vlan ATM/SHOW cipTroubleshooting PTOP ATM/SHOW/ptop ptop id /ATM/CONFIG/ENABLE/ptop ptop idPage Troubleshooting Trunking ATM/SHOW/trunk trunk id /ATM/CONFIG/ENABLE/trunk trunk idVerify all ATM Trunk ports are in a ‘Forwarding’ state using Verify the following using /ATM/SHOW/connectionDisplays all active ATM circuits CLI CommandsATM/SHOW trunk, trunk trunk# /ATM/SHOW/ARP CIP, LEC /ATM/CONFIG Displays all or a specified PTOP statusChapter FDDI Concepts Figure 12-1. HS150 on an FDDI networkHiSpeed FDDI Uplink Figure 12-2. FDDI Uplink Module installed in an HS150Cable Connections FDDI Bridge Modes The HiSpeed switch can operate in any of the following bridging modesObserving LEDs Forwarding Mode FDDI Troubleshooting TipsFiltering Mode Promiscuous ModeTroubleshooting FDDI Verify that physical port 34 is active using vvpProblem I’m having a communication problem with Platelike over FDDI Problem Cannot ping another VLAN over FDDIProblem I cannot ping to some stations via FDDI Problem Traffic through the FDDI port seems to slow and/or hang CLI Commands HiSpeed Switch Troubleshooting Guide Draft Level-Hitachi ConfidentialUS7070447-001, Rev #/Numbers SymbolsIndex C /*@US7070447-001, Rev #./8#2/1 751,AC1=5.2 N ==!??U?B*,8 US7070447-001, Rev