Installation guide

18-17
Cisco 10000 Series Routers Line Card Hardware Installation Guide
OL-6773-04
Chapter 18 Troubleshooting the Installation
Fast Ethernet and Gigabit Ethernet Line Card Troubleshooting Information
Different messages are generated in software when SFP modules are missing or are incorrect, are
installed or removed from the 1-Port Gigabit Ethernet Half-Height line card. Use Table 18-4 to
determine the meaning of specific messages. You can view the alarm messages using the show
facility-alarm status command.
All the messages are displayed at the console automatically if console logging is configured to a level 6
or greater. The message label shows the minimum logging level necessary to view a given message:
C10K_ALARM-6-INFO, for example, requires level 6 or greater.
With the RJ-45 cable
connected and the
line card configured
under Cisco IOS, the
LINK LED does not
illuminate.
The cable is not seated correctly. Unplug and replug the optical
fiber cable.
Y——
Wrong cable used;
straight-through cable rather
than RJ-45 cross-over cable, or
vice versa.
If you are using a straight-through
cable, replace it with an RJ-45
cross-over cable. Make sure that
the far end is configured correctly
for the type of cable being used.
The equipment at the far end is
not operational.
Verify that the far end is enabled
and actively sending a signal
down the cable.
Port duplex and speed settings
are not configured properly.
Check the speed and duplex
settings using the show interface
command to be sure they match on
both sides. You can set
autonegotiation to full and half
duplex. (Autonegotation may not
be able to be set for the card on the
other end, if autonegotiation is not
supported on that card.)
The port is shutdown. Enable the port.
The cable is broken. As an experiment to isolate the
failure, use a small loopback cable
to connect the Cisco 10000 line
card to itself. If the LED lights
under this condition, continue to
investigate cable and far-end
equipment failure. Try replacing
the cable.
Defective line card. Replace the line card.
Table 18-3 Troubleshooting Fast Ethernet and Gigabit Ethernet Line Cards (continued)
Symptom Possible Cause Corrective Action
Fast
Ethernet
Gigabit
Ethernet
Half
Height
Gigabit
Ethernet