01-31-2008 08:45 AM - edited 03-11-2019 04:56 AM
I got a 6506-e with fwsm module.
I get around 80 connections per sec, mainly UDP.
The proc is constantly at 20-22%
Is this normal for these connections?
How do I troubleshoot this?
01-31-2008 10:17 AM
I'm not sure if it is normal.
Please take 3 outputs of "show proc" each 60 seconds appart and post.
Also if possible please post "show run" without sensitive information? What type of traffic are you inspecting?
If you do a "show pc conn" what connections do you see? Is there one type of traffic in particular? Again if possible post the output here?
02-01-2008 12:26 PM
Is this FWSM running in single or multiple context mode?
02-10-2008 11:20 AM
I fixed the problem.
There were about 80 DNS UDP requests passing through the FWSM per second.
inspect DNS maximum-length 512 - was enabled and this killed the CPU%
I disabled DNS inspetion and CPU dropped to 0%
I'm happy that the problem is fixed but it sucks that the FWSM cant handle this inspection properly.
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