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C-3

Troubleshooting

Troubleshooting Approaches

■ Check the network cables – Cabling problems are a frequent cause of

network faults. Check the 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. See the Installation

Guide shipped with the switch for correct cable types and connector pin-

outs.

■ Use the software tools –

• HP TopTools for Hubs & Switches: Use HP TopTools for Hubs &

Switches (if installed on your network) to help isolate problems and

recommend solutions. HP TopTools is shipped at no extra cost with

the switch.

• Web Browser Interface: Use the Port Utilization Graph and Alert

problems. See Chapter 4, “Using the HP Web Browser Interface” for

operating information. These tools are available through the web

browser interface:

– Port Utilization Graph

– Alert Log

– Port Status and Port Counters screens

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

• Switch Console: For help in isolating problems, use the easy-to-

access switch console built into the switch or Telnet to the switch

console. See chapter 2, “Using the Menu Interface” and chapter 3,

“Using the Command Line Interface (CLI)” for console operating

information. 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)

!Software.book Page 3 Thursday, October 10, 2002 6:10 PM

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