HP J9028B User Manual - Page 25

Troubleshooting, Basic Troubleshooting Tips - management

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4 Troubleshooting This section describes how to troubleshoot the switch. For more information, see the chapter "Troubleshooting" in the ProCurve Series 1800 Switch Management and Configuration Guide, available on the ProCurve Networking Web site, http://www.procurve.com. This chapter describes the following: ■ basic troubleshooting tips (page 4-1) ■ diagnosing with the LEDs (page 4-2) ■ testing the switch by resetting It (page 4-3) ■ ProCurve Networking Customer Support Services (page 4-4) Basic Troubleshooting Tips Common problems and their solutions are listed in the following table. For more information on possible network problems and their solutions, refer to the technical note "Troubleshooting LAN Performance and Intermittent Connectivity Problems", which can be found on the ProCurve Networking Web site, http://www.procurve.com, in the Information Library section. Problem Switch fails Power On Self Test (POST) Link light does not light when a cable is connected. Resolution Troubleshoot using the LEDs. See "Diagnosing with the LEDs" on page 4-2 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. Troubleshooting 4-1

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4-1
Troubleshooting
4
Troubleshooting
This section describes how to troubleshoot the switch. For more information,
see the chapter “Troubleshooting” in the
ProCurve Series 1800 Switch
Management and Configuration Guide
, available on the ProCurve
Networking Web site,
.
This chapter describes the following:
■
basic troubleshooting tips (
page 4-1
)
■
diagnosing with the LEDs (
page 4-2
)
■
testing the switch by resetting It (
page 4-3
)
■
ProCurve Networking Customer Support Services (
page 4-4
)
Basic Troubleshooting Tips
Common problems and their solutions are listed in the following table.
For more information on possible network problems and their solutions, refer
to the technical note “Troubleshooting LAN Performance and Intermittent
Connectivity Problems”, which can be found on the ProCurve Networking
Web site,
, in the Information Library section.
Problem
Resolution
Switch fails Power On Self
Test (POST)
Troubleshoot using the LEDs. See “Diagnosing with the
LEDs” on page 4-2
Link light does not light when
a cable is connected.
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.