From: nouman abbasi (abbasi.nouman@gmail.com)
Date: Thu Dec 11 2008 - 22:42:04 ARST
Thanks for your input.
How to check MTU size on the router.
I have not seen a scenario where ip ospf mtu-ignore is applied on a
sub-interface of a router ( is this possible scenario )
On Fri, Dec 12, 2008 at 3:37 AM, Alex H. Ryu <r.hyunseog@ieee.org> wrote:
> show interface command!
>
> Besides MTU size mismatch, if router/switch CPU is too busy, and there
> are three continuous keepalive packet timeout, it will be same way.
>
> For MTU mismatch, you can configure "ip ospf mtu-ignore" under physical
> interface.
>
>
>
> nouman abbasi wrote:
> > *Jul 13 19:10:59.015: %OSPF-5-ADJCHG: Process 1, Nbr 7.7.7.7 on
> > FastEthernet0/0.11 from DOWN to DOWN, Neighbor Down: Ignore timer ex
> >
> >
> > Hi GS,
> >
> > whenever we see the above message the first doubt goes on MTU Size ; (
> if
> > MTU size is same ; what are other options to check )
> >
> > On SW we can check mtu size = sh system mtu
> > how to check on Router and is it possible that old router 1700 series
> with
> > old IOS will have different mtu size
> >
> >
> > Thanks
> >
> >
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