Specifications

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Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
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Chapter 3 Cisco IGX 8400 Series Nodes
Troubleshooting
General Troubleshooting Procedures
The IGX node regularly runs self-tests to ensure proper function. When the node finds an error condition
that affects operation, it deactivates the affected card and then activates a standby card if one is available.
Caution The fail LED on a card indicates that an error occurred. Try resetting the light with the
resetcd f command.
Displaying a Summary of Alarms
The first step in troubleshooting an IGX node is to check the condition of the system by displaying alarm
conditions throughout the system. To see a summary of all of the alarms on an IGX node, use the
dspalms command. The alarms summary includes the following:
• Number of failed connections.
• Number of major and minor alarms.
• Number of failed cards.
• Power monitor failures.
• Bus failures (either failed or needs diagnostics).
• Number of alarms on other nodes in the network.
• Number of unreachable nodes in the network.
To display alarms enter the dspalms command.
If the screen indicates a failure, refer to the commands in Table 3-7 to further isolate the fault.
Status of Cards
When a card indicates a failed condition on the alarm summary screen, use the dspcds command to
display the status of the cards on a node. The information displayed for each card type includes the slot
number, software revision level, and card status.
Table 3-7 Switch Software Commands Used for Fault Isolation
Failure Diagnostic Command
Connection dspcons
Line Alarm dsplns
Trunk dsptrks
Cards dspcds
Power Monitor/Fans dsppwr
Remote Node dspnw
Unreachable Nodes dspnw
Remote Node Alarms dspnw