C7600 line card CPU load

[Iulian Vaideanu]

I'm seeing some unusual CPU load on a WS-X6708-10GE w/ DFC3CXL card in a C7606-S with RSP720-3CXL-GE running IOS 12.2(33)SRE9 - by "unusual" I mean constant 70% load due to these:

#remote command module 1 sh proc cpu sort

CPU utilization for five seconds: 70%/11%; one minute: 72%; five minutes: 72%
 PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process
 131   135202968  3833851229          0 28.99% 29.01% 28.79%   0 NDE - IPV4
 164   394887860  4216448973          0 26.50% 28.78% 28.67%   0 NDE - IPV6

There are two more X6708s in that shelf that don't experience this behaviour, and we have another C7606 with similar netflow config and three such line cards that all look fine (CPU load varying with traffic instead of "flat-line" constant, NDE-IPV4 process only showing once in a while).

How do I debug this further?  It doesn't seem to be service affecting, but it's definitely annoying...

Thank you.

[Philip D'Ath]

Are the ones without the issue running the same software version 12.2(33)SRE9?

The current gold star release for your platform is 12.2.33-SRE12.  I would be tempted to go to that.  Related release notes:

http://www.cisco.com/c/en/us/td/docs/ios/12_2sr/release/notes/122SRcavs1.html

Software: https://software.cisco.com/download/release.html?mdfid=282188587&flowid=950&softwareid=280805680&release=15.3.3S6&relind=AVAILABLE&rellifecycle=MD&reltype=latest

[Iulian Vaideanu]

Yes, both routers have identical hardware configuration and they are both running SRE9.  I know SRE12 is recommended (and I'd be even willing to try SRE14), but we'd have a lot of customers to notify about the maintenance :)...

[Philip D'Ath]

I'm guessing the line card has gotten into a funny state and after a reset it will be fine ... but if the issue is only cosmetic ...

[Iulian Vaideanu]

New info learned today:

#sh platform hardware capacity netflow
Netflow Resources
          TCAM utilization:       Module       Created      Failed       %Used
                                  1           594608128           0        13839%

#sh mls netflow ip count module 1
Displaying Netflow entries in module 1

 IPC Failure

I guess I'll schedule a line card reset...