Use these approaches to diagnose switch problems:
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Check the HP website for software updates that may have solved your problem: www.hp.com/networking
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Check the switch LEDs for indications of proper switch operation:
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Each switch port has a Link LED that should light whenever an active network device is connected to the port.
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Problems with the switch hardware and software are indicated by flashing the Fault and other switch LEDs.
For a description of the LED behavior and information on using the LEDs for troubleshooting, see the Installation Guide shipped with the switch.
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Check the network topology/installation. For topology information, see the Installation Guide shipped with the switch.
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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 correct cable types and connector pin-outs, see the Installation Guide shipped with the switch.
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Use HP PCM+ to help isolate problems and recommend solutions.
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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:
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Port Utilization Graph
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Alert log
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Port Status and Port Counters screens
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Diagnostic tools (Link test, Ping test, configuration file browser)
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For help in isolating problems, use the easy-to-access switch console built into the switch or Telnet to the switch console. For operating information on the Menu and CLI interfaces included in the console, see chapters 3 and 4. These tools are available through the switch console: