Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

i have a cisco 6503 running IOS 12.2(33)sxi5 and i'm trying to enable netflow.

Following the instructions here enabling for interface vlan 3, shortly after ip flow-export version 5 console outputs:

CPU_MONITOR-6-NOT_HEARD: CPU monitor messages have not been heard for 30 seconds

crashlog here:

it then writes a crash log and reloads the router. Has anyone else experienced anything like this before? Here is my running config prior to adding the options in the above link:

Thank you for any help!

share|improve this question
Although I totally understand your question it is a little niche and I doubt you'll get a better answer here than you would placing a TAC case. Good luck with it though, I'd appreciate if they help you fix the problem if you'd come back and add some details of how if you would. – Chopper3 Mar 6 '11 at 10:34

You did the right thing gathering the crashinfo, but it may need more analysis to be useful.

Some resources on cisco's website could help you to diagnose this issue (cco account needed):

You could also try to search in Cisco NSP (Network Service Providers) mailing-list archives, and maybe post to ask for help.

Last but not least, as Chopper3 suggested it, open a TAC case (cco + maintenance contract needed).

share|improve this answer
Alternatively, talk to whoever you have a service contract with and have them open a TAC case for you. – Vatine Mar 7 '11 at 6:48

I will third opening a TAC case. That is the reson that somany people run Cisco in the network is that when odd things like this happen there is a go to team to find the solution.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.