Troubleshooting; Basic Troubleshooting Tips - HP ProCurve Switch 1600M Installation Manual

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Troubleshooting

This chapter describes how to troubleshoot your Switch 1600M. Note that this

document describes troubleshooting mostly from a hardware perspective.

You can perform more in-depth troubleshooting using the software tools

available with the switch, including the full-featured console interface, the

built-in web browser interface, and HP TopTools for Hubs & Switches, the

SNMP-based network management tool. See the Troubleshooting chapter of

the HP ProCurve Switch 8000M and 1600M Management and Configuration

Guide included with your switch for more information.

This chapter describes the following:

Most problems are caused by the following situations:

basic troubleshooting tips (pg. 3-1)

diagnosing with the LEDs (pg. 3-3)

Proactive Networking tools (pg. 3-6)

Hardware Diagnostic tests (pg. 3-7)

HP Customer Support Services (pg. 3-9)

Incorrect switch-to-switch or switch-to-hub connections. If you

have connected your switch to another switch or a hub by using twisted-

pair cable from an RJ-45 MDI-X connector on your switch to the an MDI-

X connector on the other switch or hub, you must use a crossover cable.

If you have used a straight-through cable, the connection will not work.

The LED for the port you are using will not come on when you connect

the cable.

Most switch and hub ports are wired as MDI-X ports, so for these switch-

to-switch or switch-to-hub connections use a crossover cable. LAN

adapters in end nodes are normally wired as MDI ports as are some ports

on hubs and switches. For connections from the switch to these MDI

ports, use a straight-through cable. See appendix B, "Cables and

Connectors" for pinouts and correct cable wiring for crossover and

straight-through twisted-pair cables.

3-1

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