JUNOS Internet Software Network Operations Guide: Hardware
456 ! Verifying FEB Failure
What It Means The command output displays the temperature and status of the FEB, which can be
OK, Failed, or Absent.
Step 2: Display the FEB Detailed Status
Action To display more detailed FEB status, use the following CLI command:
user@host> show chassis feb
Sample Output
user@host>
show chassis feb
FEB status:
Temperature 37 Centigrade
CPU utilization 0 percent
Interrupt utilization 0 percent
Heap utilization 16 percent
Buffer utilization 43 percent
DRAM 64 Mbytes
Internet Processor II Version 1, Foundry IBM, Part number 9
Start time 1999-01-24 16:24:42 UTC
Uptime 2 hours, 21 minutes, 28 seconds
What It Means The command output displays the temperature of the air passing by the FEB, in
degrees Centigrade. It displays the total percentage of CPU, interrupt, heap space,
and buffer space being used by the FEB processor, including the total DRAM
available to the FEB processor. The command output displays the time when the
FEB started running and how long the FEB has been running. A short uptime can
indicate that there is an FEB problem.
Verifying FEB Failure
The FEB will either restart, keep crashing, or fail completely. If the FEB fails, you will
loose the router interface connections.
Steps To Take To verify FEB failure, follow these steps:
1. Check the FEB Uptime on page 457
2. Check the System Uptime on page 457
3. Check the FEB Connection on page 457
4. Perform a Swap Test on the FEB on page 458
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