Troubleshooting overview

This document addresses performance-related network problems that can be caused by topology, switch configuration, and the effects of other devices or their configurations on switch operation. (For switch-specific information on hardware problems indicated by LED behavior, cabling requirements, and other potential hardware-related problems, see the Installation Guide you received with the switch.)


[NOTE: ]

NOTE: HP periodically places switch software updates on the HP Switch Networking website. HP Switch recommends that you check this website for software updates that may have fixed a problem you are experiencing.


For information on support and warranty provisions, see the Support and Warranty booklet shipped with the switch.

Troubleshooting approaches

Troubleshooting approaches

Troubleshooting approaches

Use these approaches to diagnose switch problems:

  • Check the HP website for software updates that may have solved your problem:

  • Check the switch LEDs for indications of proper switch operation:

    • Each switch port has a Link LED that should light whenever an active network device is connected to the port.

    • Problems with the switch hardware and software are indicated by flashing the Fault and other switch LEDs.

    • Check the network topology/installation.

    • Check cables for damage, correct type, and proper connections. You should also use a cable tester to check your cables for compliance to the relevant IEEE 802.3 specification.

    For more information, see the Installation Guide shipped with the switch.

  • Use IMC to help isolate problems and recommend solutions.

  • Use the Port Utilization Graph and Alert Log in the WebAgent included in the switch to help isolate problems. These tools are available through the WebAgent:

    • Alert log

    • Port Status and Port Counters screens

    • Diagnostic tools (Link test, Ping test, configuration file browser)

  • For help in isolating problems, use the easy-to-access switch console built into the switch or Telnet to the switch console. These tools are available through the switch console:

    • Status and Counters screens

    • Event Log

    • Diagnostics tools (Link test, Ping test, configuration file browser, and advanced user commands)