[c-nsp] MLD process using 100% CPU

Daniele Orlandi daniele at orlandi.com
Wed May 27 05:38:56 EDT 2009


I have several routers which sometimes show high cpu utilization for several 
seconds in the MLD process:

#show processes cpu sorted 5min
CPU utilization for five seconds: 99%/7%; one minute: 41%; five minutes: 16%
PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process 
284    11930608     9385919       1271 90.09% 31.39%  7.43%   0 MLD    

The router above is a NPE-G2 (IOS 12.4T) which should have plenty of CPU 
capacity but MLD is running for a minute  at 100% nonetheless.

Is this a known issue? Am I actually having some sort of MLD storm?


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