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Cisco uBR10012 Universal Broadband Router Troubleshooting Guide
OL-1237-01
Chapter 4 Troubleshooting Line Cards
Troubleshooting the Gigabit Ethernet Line Card
Table 4-8 describes 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
has disabled the card
1. Reinsert the line 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
or
Card seems to be passing traffic (Tx/Rx lights),
but cannot communicate with the PRE
1. Check for bent pins on the backplane.
2. If there are no bent pins, replace with a new
line card.
Try inserting the line card in a different slot.
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.