[c-nsp] me3600 ospf %100 cpu blowup

[Mark Tinka]

On 13/Jan/18 05:36, Mike wrote:

> So ... the plot thickens.
>
> My initial analysis was flawed and reload did not in fact address the
> problem. I was able to observe the neighbors all having issues again and
> this time I saw that a neighbor relationship was stuck in 'loading'
> state. After a lot of looking around, I determined that the interface
> and ip mtu both were 9216. I suspect that this mtu was too big and that
> my igp had grown to a point where fragmentation was needed but due to an
> incorrect mtu here, the updates were not working due to full size
> packets. I added 'ip mtu 9000' and the problem has not come back since
> (>10 hours now).

Hmmh - not sure how this makes sense. But if it's working...

Mark.