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Troubleshooting
Overview
Overview
This chapter 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, refer to the installation guide you
received with the switch.)
Note HP periodically places switch software updates on the HP ProCurve web site.
HP recommends that you check this web site 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
Use these approaches to diagnose switch problems:
■ Check the HP ProCurve web site – the web site may have software
updates or other information to help solve your problem:
http://www.hp.com/go/hpprocurve
■ Check the switch LEDs – The LEDs on the switch are a fundamental
diagnostic tool. They provide indications of proper switch operation and
of any hardware faults that may have occurred:
• 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.
See the Installation Guide shipped with the switch for a description
of the LED behavior and information on using the LEDs for trouble-
shooting.
■ Check the network topology/installation – See the Installation Guide
shipped with the switch for topology information.
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