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New Member

IOS VPN Replay check bug

I was wondering if someone could help answer my question I posted here in this document,

I'm experiencing this bug and believe it may be causing a high cpu utilization. Does this bug mean the replay check feature is completely not functioning because I'd like to disable it.

IOS of 2 devices experiencing this issue:

ADVSECURITYK9-M Version 12.4(24)T

ADVSECURITYK9-M Version 12.4(22)YB

Thanks for any advice! -Mark

Everyone's tags (4)
Cisco Employee

IOS VPN Replay check bug

Don't believe that this causes high CPU. It may be other things that causes high CPU. You might want to open a TAC case to get that further troubleshot.

New Member

IOS VPN Replay check bug

Thank you for your reply Jennifer. I've been at this new job for 6 months now and since I started, there were always issues with the CPU on about 3 routers going above 60% utilized then back down to around 10%. In the router's logging file they all displayed this same error which made me to believe it was the issue.
I ran a show processes cpu and pasted the information to Cisco's output interpreter and this is the result:

ERROR: Total CPU Utilization is at 98% for the past 5 seconds, which is very high
This can cause the following symptoms:
 - Input queue drops
 - Slow performance
 - Slow response in Telnet or unable to Telnet to the router
 - Slow response on the console
 - Slow or no response to ping
 - Router doesn't send routing updates
The following processes are causing excessive CPU usage:
 PID     CPU Time     Process
   5     28.74%          Pool Manager

So it appears that the pool manager is having a problem. I've got some more investigating to do...

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