[c-nsp] IP INPUT process growing 9Mb/day

[David Prall]

2 multi-point gre tunnels. Are both sourced from the same ip address? If so
then they are being handled by the RP itself. This will cause IP Input
issues. To be hardware forwarded they must have different source addresses.
Another issue would be if you have configured any of the unsupported
features.

David

--
http://dcp.dcptech.com


> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> Mattias Eliasson
> Sent: Friday, February 23, 2007 3:55 AM
> To: Oliver Boehmer (oboehmer)
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] IP INPUT process growing 9Mb/day
>
> Hi again
>
> Further info, checking sh process cpu history shows that the
> average is below 10% but that cpu peaks out at 90% regularly.
>
>       1                    88888                         11111
>       0     11111     333334444455555     33333     333332222299
> 100
>   90
>   80                       *****
>   70                       *****
>   60                       *****
>   50                       *****
>   40                       *****
>   30                       *****
>   20                       *****
>   10  *                    **********                    *******
>      0....5....1....1....2....2....3....3....4....4....5....5....
>                0    5    0    5    0    5    0    5    0    5
>
>                 CPU% per second (last 60 seconds)
>
>
>
>
> 9899999898989899999999889999998899898998999899999998989898899988898898
>
> 2691521829073610320420881143049950908228324801331228372519864389719869
> 100    * *                           *
>   *
>   *
>   90
> **********************************************************************
>   80
> **********************************************************************
>   70
> **********************************************************************
>   60
> **********************************************************************
>   50
> **********************************************************************
>   40
> **********************************************************************
>   30
> **********************************************************************
>   20
> **********************************************************************
>   10
> ######################################################################
>
> 0....5....1....1....2....2....3....3....4....4....5....5....6.
> ...6....7.
>                0    5    0    5    0    5    0    5    0    5
>    0    5
>    0
>
>                     CPU% per hour (last 72 hours)
>                    * = maximum CPU%   # = average CPU%
>
>
> Best regards
> Mattias Eliasson
> Teknikmejeriet AB
>
>
> 2007-02-23 kl. 09.04 skrev Oliver Boehmer (oboehmer):
>
> > Mattias Eliasson <> wrote on Friday, February 23, 2007 8:48 AM:
> >
> >> Hi all
> >>
> >> I wrote a few day ago about a memory fragg issue but got
> no response.
> >>
> >> I now have some more info about the problem.
> >>
> >> It turns out it is not a Fragg but the IP INPUT process growing by
> >> 9Mb/day.
> >>
> >> This will offcourse reach reboot time again soon so any
> help will be
> >> very appreciated.
> >>
> >> HW Config is 6503-E Sup32 8xGE and a 6148-GE-TX
> >>
> >> IOS is 12.2(18)SXF7 (which I know several other ISPs run without
> >> issues).
> >>
> >> Config is:
> >> 2x full feeds
> >> OSPF and iBGP about 150 prefixes
> >> 2 GRE-multipoint tunnels
> >>
> >> What am I missing?
> >> Any tips appreciated!
> >
> > issue "show proc mem <pid>" (where <pid> is the process id
> of the IP
> > Input process) a couple of hours apart and check which
> PC(s) show an
> > increasing number. Please post the result along with a
> "show version".
> > IP Input handles packets to the CPU. Does "show proc cpu" show high
> > utilization in the input process?
> >
> > 	oli
>
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