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

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HiSpeed Switch Troubleshooting GUide

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

Contents

Troubleshooting Guide HiSpeed Fast Ethernet SwitchA description of any commands entered and the resulting output #&$$%Your name, address, telephone, and fax number Type of equipment, serial number, and software version numberTable of Contents HiSpeed SwitchHardware Diagnostics Chapter IntroductionMethods of Managing the Switch Chapter CablingChapter Fundamentals of NetworkingTroubleshooting at the MAC Layer ChapterBridging Concepts ChapterChapter Chapter Troubleshooting at the Network LayerBasic ATM Concepts FDDI Concepts ChapterIndex 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 Draft Level-Hitachi Confidential HiSpeed Switch Troubleshooting GuideUS7070447-001, 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 statusLEDs on FX ports RJ-45 LEDsThere is no link present on the port HiSpeed Memory, Boot Prom, Flash Components Factory Switch SettingsBoot Prom MemoryEthernet port settings autonegotiation is ON Spanning Tree is enabled These settings provide for switching in a single broadcast domainHiSpeed Switch Troubleshooting Guide Draft Level-Hitachi ConfidentialChapter Cabling Basic Connections10BASE-TX Ports Table 4-1. RJ-45 Connector pin assignments10/100BASE-TX Ports 100BASE-FX PortsConsole Port Draft Level-Hitachi Confidential CablingUS7070447-001, Rev Draft Level-Hitachi Confidential HiSpeed Switch Troubleshooting GuideUS7070447-001, Rev Chapter Fundamentals of Networking Doc Part Number, Version NumberLayer 1 Physical Layer Examples of Physical Layer devices are repeaters and hubsLayer 2 Data Link Layer Examples of Layer 2 devices are bridges and switches Examples of Layer 3 devices are routersLayer 3 Network Layer Layer 4 Transport LayerDraft Level-Hitachi Confidential HiSpeed Switch Troubleshooting GUideDoc Part Number, Version Number Chapter Methods of Managing the Switch CLI Command Line InterfaceUsing the Console Port SNMP using HiView’s Graphical User Interface GUIUsing a Telnet Session Troubleshooting a Console ConnectionTroubleshooting the Login Procedure Troubleshooting a Telnet SessionLogging In HiView Switch Management Windows 95/Windows NTUNIX HiView TipsWindows 95/NT UNIXTroubleshooting HiView Troubleshooting Network Management software on the HiSpeed switchSNMPC Issues validMeterWare Issues EXAMPLE“ Reload Now”again MIB CompilerNote Viewing Hitachi’s private MIBs requires further testing Figure 6-2. Fig2. MIB BrowserDraft Level-Hitachi Confidential Doc Part Number, Version NumberDraft Level-Hitachi Confidential SNMPTalk IssuesDoc 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 CLI Commands vbridge/config/bridge vlan#vbridge/config/filter vbridge/show/fwtDraft Level-Hitachi Confidential HiSpeed Switch Troubleshooting GuideUS7070447-001, Rev Chapter VLAN Concepts VLANs provide some of the following benefits Reduced costs Troubleshooting VLANs Problem Cannot ping a users on a different VLANUseful CLI Commands VLAN TipsVLAN 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 Draft Level-Hitachi Confidential HiSpeed Switch Troubleshooting GUideDoc Part Number, Version Number Chapter Troubleshooting at the Network Layer IP Internet Protocol Other IP-related Services RIP Routing Information ProtocolRoute Cache Forwarding vs. IP Forwarding Default RouteStatic Routes vs. Dynamic Routes Common ICMP Destination Unreachable Messages Network UnreachableHost 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 Configuration Server LAN Emulation Client LECLAN Emulation Server LES Broadcast and Unknown Server BUSPoint-to-Point Bridging PTOP Classical IP over ATM CIPFigure 11-3. ATM CIP Trunking HiSpeed switchHiSpeed switch HiSpeed switchHitachi HiSpeed ATM Specifications ATM Troubleshooting TipsTroubleshooting LANE ATM/CONFIG/CREATE/lec lec idATM/CONFIG/MODIFY port PORTSERV/CONFIG/create 34 vpsTroubleshooting CIP Verify the following using /ATM/SHOW/connectionATM/SHOW cip cip id /VLAN/SHOW/router ATM/SHOW cip cip id /VLAN/SHOW/vlanVLAN/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/connectionCLI Commands ATM/SHOW trunk, trunk trunk# /ATM/SHOW/ARP CIP, LEC /ATM/CONFIGDisplays all active ATM circuits 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 The HiSpeed switch can operate in any of the following bridging modes FDDI Bridge ModesObserving LEDs FDDI Troubleshooting Tips Filtering ModeForwarding Mode Promiscuous ModeTroubleshooting FDDI Verify that physical port 34 is active using vvpProblem Cannot ping another VLAN over FDDI Problem I’m having a communication problem with Platelike over FDDIProblem I cannot ping to some stations via FDDI Problem Traffic through the FDDI port seems to slow and/or hang CLI Commands Draft Level-Hitachi Confidential HiSpeed Switch Troubleshooting GuideUS7070447-001, Rev Symbols Index#/Numbers C /*@US7070447-001, Rev 751,A C1=5.2#./8#2/1 N ==!??U?B*,8 US7070447-001, Rev