Installation Guide for fl Modules 2007-02

ProCurve Switch fl Modules

Installing Modules

Troubleshooting Module Operation

If the Link LED for a port does not light on, follow the procedures in Table 4

to troubleshoot the module operation.

Table 4. Using LEDs to Troubleshoot

Error Condition Diagnostic Procedure

A port LED remains off after • Verify that both ends of the port’s cabling (at the switch and

you connect a cable.

at the connected device) are securely connected.

• Verify that the connected device and switch are both pow-

ered on and operating correctly.

• Verify that you are using the correct cable type for the

connection—see “Connectors and Cables” on page 35 for

more information.

• For fiber-optic connections, verify that the transmit port on

the switch is connected to the receive port on the connected

device, and the switch receive port is connected to the

transmit port on the connected device.

• Verify that the port has not been disabled through a switch

configuration change.

• Verify that the connection parameters configured for the

port match the connection configured for the device. Mis-

matched configurations are a frequent cause of connection

problems.

You can use the console interface to determine the state and

configuration of the port. Re-enable the port if necessary. (If

you configured an IP address on the switch, you can also

use a Telnet session or SNMP-based management

software.)

• If the preceding procedures do not resolve the problem, try

using a different port or a different cable.