CSM randomly tcp conn reset

Unanswered Question
Oct 10th, 2007

Hello guys,

customer's CSM randomly reset TCP connections without any log message, or reload csm module.

reason of the reload is: Oct 5 09:16:08: %CSM_SLB-3-UNEXPECTED: Module 7 unexpected error: FPGA4 exception encountered.

sh mod csm tech-support utilization shows:

MACs UNICAST 99% (5572/s)

can anybody explain me what's that means? maybe too many unicast flows on the csm and that is a reason of the reload. I can't find any related infos in the documentation.


I have this problem too.
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Gilles Dufour Tue, 10/16/2007 - 21:39

your csm cored.

do a sho mod csm x tech core to get some core file info.

Then you have to exract the core file and send it to us for analysis.

Better open a TAC SR for guidance on how to extract the core file.

Or simply upgrade to the latest version hoping this was solved already.

the 99% unicast means 99% of the traffic received by the CSM is unicast and 1% mutlicast/broadcast. This is normal.



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