Cisco Systems UBR10012 manual Gigabit Ethernet Line Card Faults and Recommended Responses

Chapter 4 Troubleshooting Line Cards

Troubleshooting the Gigabit Ethernet Line Card

Table 4-8describes the gigabit Ethernet line card fault indications and suggests responses to each.

Table 4-8 Gigabit Ethernet Line Card Faults and Recommended Responses

Fault Type	Response
Fail LED is lit yellow indicating that a major fault	1.	Reinsert the line card.
has disabled the card	2.	Insert the line card into another slot.
	3.	Replace the line card.
	4.	If neither of the above responses to a card
		failure succeeds, call the Cisco TAC.
Fail LED blinks then lights steadily repeatedly	1.	Check for bent pins on the backplane.
or	2.	If there are no bent pins, replace with a new
		line card.
Card seems to be passing traffic (Tx/Rx lights),	Try inserting the line card in a different slot.
but cannot communicate with the PRE	If the card works in a different slot, the
	Cisco uBR10012 backplane may be defective.
	Call the Cisco TAC.
Fail LED blinks steadily	This is a user correctable problem. The steadily
	blinking LED indicates a transmit failure.
	To correct the problem:
	1.	Reinsert the GBIC.
	If reinsertion fails:
	2.	Replace the GBIC.
Link LED does not light but the port is enabled	1.	Make sure the fiber optic cable is plugged in
		properly, unbroken, and undamaged.
	2.	Make sure that you are using the correct type
		of fiber optic cable.
	3.	If you have autonegotiation enabled on the
		local gigabit Ethernet interface, make sure
		that it is enabled on the remote interface also.
		If autonegotiation is disabled, it must be
		disabled at the remote interface as well.
	4.	Replace the GBIC.
Gigabit Ethernet card resets itself intermittently.	1.	Issue the show diag command. If this
		indicates a “parity error” occurred, contact
		Cisco TAC for possible replacement of the
		card.

Cisco uBR10012 Universal Broadband Router Troubleshooting Guide

OL-1237-01 4-19