Troubleshooting; Basic Troubleshooting Tips - HP 5400zl Series Installation And Getting Started Manual

Troubleshooting

This chapter describes how to troubleshoot your Series 5400zl Switches. Note
that this document describes troubleshooting mostly from a hardware
perspective. You can perform more in-depth troubleshooting using the soft-
ware tools available with the switch, including the full-featured console
interface, the built-in web browser interface, and ProCurve Manager, the
SNMP-based network management tool. For more information, see the
chapter "Troubleshooting" in the Management and Configuration Guide,
which is on the ProCurve Web site at www.procurve.com/manuals. To display
the list of downloadable manuals, click on the following link:
(You may want to bookmark this Web page for easy access in the future.)
This chapter describes the following:
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Basic Troubleshooting Tips

Most problems are caused by the following situations. Check for these items
first when starting your troubleshooting:
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ProCurve Switch 5400zl Series.
basic troubleshooting tips
diagnosing with the LEDs
Proactive Networking tools
hardware diagnostic tests
restoring the factory default configuration
downloading new code
HP Customer Support Services
Faulty or loose cables. Look for loose or obviously faulty connections.
If they appear to be OK, make sure the connections are snug. If that does
not correct the problem, try a different cable.
Non-standard cables. Non-standard and miswired cables may cause
network collisions and other network problems, and can seriously impair
network performance. Use a new correctly-wired cable or compare your
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