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8-2
Troubleshooting
Troubleshooting Approaches
Troubleshooting
Troubleshooting Approaches
There are six primary ways to diagnose switch problems:
Check the switch LEDs for indications of proper behavior:
Each switch port has a Link LED that should light whenever an active
network device is connected to a the port.
Problems with the switch hardware and software are indicated by
flashing the Fault and other switch LEDs.
See the Installation Guide shipped with the switch for information on
using the switch LEDs for troubleshooting.
Check the network topology/installation. See the Installation Guide
shipped with the switch for topology information.
Check cables for damage, correct type, and proper connections. See the
Installation Guide shipped with the switch for cable types and connector
pin-outs.
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.
Use the Port Utilization Graph and Alert Log in the web browser interface
included in the switch to help isolate problems. See chapter 3, “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 screen
Port Counters screen
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. See chapter 4, “Using the
Switch Console” for 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)
Sraswb.book : SIER_SW8.FM Page 2 Tuesday, June 30, 1998 12:20 PM
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