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Hitachi manual ?U?B*,8, US7070447-001, Rev

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US7070447-001, Rev 01

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Hitachi manual ?U?B*,8, 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 ChapterBasic ATM Concepts Chapter Troubleshooting at the Network LayerChapter Index ChapterFDDI Concepts 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 US7070447-001, Rev HiSpeed Switch Troubleshooting GuideDraft Level-Hitachi Confidential 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 statusThere is no link present on the port RJ-45 LEDsLEDs on FX ports 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 US7070447-001, Rev CablingDraft Level-Hitachi Confidential US7070447-001, Rev HiSpeed Switch Troubleshooting GuideDraft Level-Hitachi Confidential Chapter Fundamentals of Networking Doc Part Number, Version NumberLayer 2 Data Link Layer Examples of Physical Layer devices are repeaters and hubsLayer 1 Physical Layer Layer 3 Network Layer Examples of Layer 2 devices are bridges and switchesExamples of Layer 3 devices are routers Layer 4 Transport LayerDoc Part Number, Version Number HiSpeed Switch Troubleshooting GUideDraft Level-Hitachi Confidential 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 ConnectionLogging In Troubleshooting a Telnet SessionTroubleshooting the Login Procedure 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 NumberDoc Part Number, Version Number SNMPTalk IssuesDraft Level-Hitachi Confidential 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/fwtUS7070447-001, Rev HiSpeed Switch Troubleshooting GuideDraft Level-Hitachi Confidential Chapter VLAN Concepts VLANs provide some of the following benefits Reduced costs Troubleshooting VLANs Problem Cannot ping a users on a different VLANVLAN Entries VLAN TipsUseful CLI Commands 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 Doc Part Number, Version Number HiSpeed Switch Troubleshooting GUideDraft Level-Hitachi Confidential Chapter Troubleshooting at the Network Layer IP Internet Protocol Other IP-related Services RIP Routing Information ProtocolStatic Routes vs. Dynamic Routes Default RouteRoute Cache Forwarding vs. IP Forwarding 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 BUSFigure 11-3. ATM CIP Classical IP over ATM CIPPoint-to-Point Bridging PTOP 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 Observing LEDs FDDI Bridge ModesThe HiSpeed switch can operate in any of the following bridging modes Forwarding Mode FDDI Troubleshooting TipsFiltering Mode Promiscuous ModeTroubleshooting FDDI Verify that physical port 34 is active using vvpProblem I cannot ping to some stations via FDDI Problem I’m having a communication problem with Platelike over FDDIProblem Cannot ping another VLAN over FDDI Problem Traffic through the FDDI port seems to slow and/or hang CLI Commands US7070447-001, Rev HiSpeed Switch Troubleshooting GuideDraft Level-Hitachi Confidential #/Numbers SymbolsIndex C /*@US7070447-001, Rev #./8#2/1 751,AC1=5.2 N ==!??U?B*,8 US7070447-001, Rev