[c-nsp] OSPF flapping between Nexus 7000 and ASR 1001x

Robert Blayzor rblayzor.bulk at inoc.net
Thu Jul 18 15:39:09 EDT 2019

On 7/18/19 1:09 AM, Richard Mikisa wrote:
> Issue was mismatched MTU. I reduced them down to 2000 after a ping
> sweep and its been steady since.

I would ping across the link with DF bit set and see what the maximum
size packet you can successfully transmit over the point-to-point and
set your MTU accordingly. Once you have them matching on both sides, as
others have suggested, remove mtu-ignore.

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