Hitachi US7070447-001 manual Logging, Troubleshooting a Telnet Session

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Draft Level—Hitachi Confidential

Methods of Managing the Switch

Troubleshooting a Telnet Session

Use the following procedure when you cannot establish a Telnet session to the switch:

1.Verify that the console setting on the switch is unlocked.

/console>lock

2.Verify that a link is established on the Ethernet port.

3.Verify the port is enabled and in “Forwarding” mode. Using the CLI, type

vvp

4.Ping yourself first. Verify the switch’s IP address, subnet mask, and the default router configurations are correct.

Logging In

The HiSpeed switch is shipped from the factory with pre-installed software. By default, the switch is configured to boot from flash. After the switch has been booted, the login prompt will be displayed. Log in by entering admin, in lowercase.

Login: admin

The switch will then prompt you for a password. Enter switch, in lowercase. The password will not be displayed on the screen. For security reasons, change the admin password as soon as possible. To do so, use the /SYSTEM/CONFIG/ ADMINPW command. (Refer to the User Guide for more details on this command).

Troubleshooting the Login Procedure

Use the following procedure when you cannot log into the switch:

1.For console port access, press [Return] several times before the Login prompt appears.

2.Ensure that you are using all lowercase for your login name and password.

3.Contact your supplier to have your password reset if you are unable to log in with the correct password.

Doc Part Number, Version Number

6-3

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Contents Troubleshooting Guide #&$$% Table of Contents Chapter Fundamentals of Networking Chapter Methods of Managing the SwitchChapter Cabling Chapter Vlan Concepts Chapter Troubleshooting at the MAC LayerChapter Bridging Concepts Chapter Basic ATM Concepts Chapter Troubleshooting at the Network LayerIndex Chapter Fddi ConceptsViii HS150-100-16 base model with an HS150-100-8E expansion List of FiguresViii List of Tables US7070447-001 Chapter Introduction Purpose of the Guide Basic Troubleshooting TipsHow to Contact Tech Support HIassist@hitachi.com HiSpeed Switch Troubleshooting Guide Basic Product Features Supported Chapter HiSpeed Switch What is the HiSpeed Switch?Available Configurations Total Model Mbps Uplink Upgrades To Ports TX Ports FX Ports Base model configurationsHS140/150-100 Model HS140/150-010 ModelExpansion Modules HiSpeed switch expansion modulesModule Number Mbps Mbps Base Model TX Ports FX PortsModel Ports Type Base Model UpLink ModulesUplink modules for the HS15-010 and HS150-100 Observing LEDs Chapter Hardware DiagnosticsLEDs Reset ButtonModule LEDs LED statusHardware Diagnostics LEDs on FX ports RJ-45 LEDsColor Status Description Color State DescriptionFactory Switch Settings HiSpeed Memory, Boot Prom, Flash ComponentsHiSpeed Switch Troubleshooting Guide Basic Connections Chapter Cabling10BASE-TX Ports RJ-45 Connector pin assignmentsPin MDI-X Signal 100BASE-FX Ports 10/100BASE-TX PortsConsole Port Pin Assignments Pins Signal NameConsole Port Cabling HiSpeed Switch Troubleshooting Guide Chapter Fundamentals of Networking Network Media Examples of Physical Layer devices are repeaters and hubsExamples of Layer 2 devices are bridges and switches HiSpeed Switch Troubleshooting GUide Using the Console Port Chapter Methods of Managing the SwitchCLI Command Line Interface Troubleshooting a Console Connection Using a Telnet SessionLogging Troubleshooting a Telnet SessionWindows 95/Windows NT HiView Switch ManagementHiView Tips UnixSnmpc Issues Troubleshooting HiViewExample MIB Compiler Reload NowagainFig2. MIB Browser SNMPTalk Issues How Spanning Tree Works Chapter Bridging Concepts Basic Bridging ConceptsUsing Spanning Tree Troubleshooting Bridging Issues To reduce the STA timer, type Vlan CLI CommandsHiSpeed Switch Troubleshooting Guide Chapter Vlan Concepts VLANs Default VLANs Multiple VLANsProblem Cannot ping a users on a different Vlan Troubleshooting VLANsDescription CLI command Vlan entry created Useful CLI CommandsVlan Tips Vlan EntriesChapter Troubleshooting at the MAC Layer Ethernet Common Ethernet Errors Physical Media SpecificationsFCS errors Alignment errorsEthernet Tips Oversized framesTo clear the buffer queues Troubleshooting EthernetDisplays all port speeds, duplexity HiSpeed Switch Troubleshooting GUide Class Range Subnet Mask IP address classesRIP Routing Information Protocol Other IP-related ServicesStatic Routes vs. Dynamic Routes Default RouteRoute Cache Forwarding vs. IP Forwarding Network Unreachable Common Icmp Destination Unreachable MessagesTroubleshooting IP Problem Cannot establish a telnet session to the switch CLI CommandsVPI/VCI Chapter Basic ATM ConceptsLAN Emulation Lane Permanent Virtual Circuits vs Switched Virtual CircuitsLAN Emulation Client LEC Point-to-Point Bridging Ptop Classical IP over ATM CIPATM Ptop TrunkingATM Troubleshooting Tips Hitachi HiSpeed ATM SpecificationsTroubleshooting Lane Verify the following using /ATM/SHOW/connection Troubleshooting CIP11-9 Troubleshooting Ptop Verify signaling and Ilmi status should be ‘up’ Troubleshooting Trunking Verify all ATM Trunk ports are in a ‘Forwarding’ state using Displays all active ATM circuits Dual Ring Chapter Fddi ConceptsHiSpeed Fddi Uplink Fddi Uplink Module installed in an HS150SAS cable connections Cable ConnectionsLED Status Board Status Description Yellow Green Fddi Bridge ModesLED States Filtering Mode Fddi Troubleshooting TipsForwarding Mode Promiscuous ModeVerify that physical port 34 is active using vvp Troubleshooting FddiProblem Cannot ping another Vlan over Fddi 12-8 Displays the Fddi MAC Neighbor address table 12-10 Index 71$E54 C1=5.2 ?U?B*,8

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