From: elping (elpingu@acedsl.com)
Date: Fri Sep 20 2002 - 00:12:44 GMT-3
is that the highest hog of cpu when you do a "sh proc cpu" ?
Imo Etuk wrote:
> Chuck,
>
> MSFC II
> CEF is enabled - don't know why the CPU utilization is so high. CPU
>
> PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
> 53 36467656 24301656 1500 4.48% 3.95% 3.06% 0 IP Input
> 13 2666024 1789255 1490 1.04% 1.76% 1.52% 0 ARP Input
> 63 726712 228837 3175 0.57% 0.34% 0.36% 0 CEF process
> 41 188244 5137910 36 0.24% 0.10% 0.11% 0 IP NAT Ager
>
> Funny enough, IP Nat is running only at 0.36%, the IP input seems like a
> winner at 3.06%
>
> Thanks,
>
> Imo
>
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Chuck Church
> Sent: Friday, September 20, 2002 3:56 PM
> To: 'IMO ETUK'; 'ccielab@groupstudy.com'
> Subject: RE: NAt oh NAT
>
> Imo,
>
> What version are you running on the MSFC? Is it an MSFC 1 or 2? Is
> CEF enabled and running correctly? I though NAT could be fast switched.
> What does your 'sh proc cpu' show as the offending process? Or is it
> interrupts?
>
> Chuck Church
> CCIE #8776, MCNE, MCSE
> Sr. Network Engineer
> Magnacom Technologies
> 140 N. Rt. 303
> Valley Cottage, NY 10989
> 845-267-4000
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> IMO ETUK
> Sent: Friday, September 20, 2002 4:40 PM
> To: ccielab@groupstudy.com
> Subject: NAt oh NAT
>
> Hi all,
>
> I seem to be having problems with a NAT config. Currently NAT is
> configured on a 6506 which is running native IOS. I have 4,000 users
> natted to 13 IPs and my processor utilization is not too happy about
> this, its sitting at 80& util now.
>
> I have tried tweaking timers and such on NAT but no dice. Is there any
> thing else that i can do to aleviate the cpu utilization?
>
> Here are my timers
>
> ip nat translation timeout 180
> ip nat translation tcp-timeout 300
> ip nat translation udp-timeout 30
> ip nat translation finrst-timeout 15
> ip nat translation dns-timeout 15
>
> ------------
>
> Here is my NAT config - some of it
>
> ip nat pool nat_router xx.xx.xx.11 xx.xx.xx.23 prefix-length 26
> ip nat inside source list 99 pool nat_router overload
> access-list 99 permit a.b.0.0 0.0.255.255
>
> where a and b are private IPs :)
> the xx.xx are publics :)
>
> So i have 13 VLANs going to the pool nat_router.
>
> Any thoughts?
>
> Thanks
>
> Imo
This archive was generated by hypermail 2.1.4 : Mon Oct 07 2002 - 07:43:58 GMT-3