Troubleshooting
Verifying LED Operation
Verifying LED Operation
If you suspect a faulty LED—for example, if the LEDs indicate a failure as shown in table 4-1 or table 4-2, or they have some anomalous pattern; but the router nevertheless appears to be operating correctly—you can verify the LEDs by resetting the router using the following procedure.
Resetting the router causes bridging and routing tables to be reset. For other effects, see “Initialization Sequence” on page 3-10.
Use a nonconducting, pointed implement such as a wooden pencil or a toothpick to press and hold the recessed Reset button on the router module’s cover plate. (See figure 3-2 on page 3-4.) Verify that while you are holding the Reset button, all of the LEDs on the router module’s cover plate (except for SNMP Mgt Fault) turn on. If any of these LEDs does not turn on, the router module must be replaced.
