[c-nsp] cisco-nsp Digest, Vol 85, Issue 67

[Chris Wopat]

>> From: Mikael Abrahamsson <swmike at swm.pp.se>
>
> If you set "ip mtu 1500" then indeed it will not send any IP packets
> larger than 1500, and since OSPF runs over IP, this is also affected.
>
> But yes, you're doing the right thing (if the "mtu 1530" command is
> because you're running MPLS or something else non-IP that needs a higher
> MTU).

Excellent, this is what I was hoping to hear. And yes, this is a part
of our MPLS preparation.


>> From: Reuben Farrelly <reuben-cisco-nsp at reub.net>
>
> And don't forget - just in case this applies to you:
>
> ip mtu 1500
>
> does NOT apply to IPv6, you'll need to -explicitly- set "ipv6 mtu 1500" as
> well :-)
>
> Reuben
> (who recently found this out the hard way with IPv6 OSPF)

Thanks for the tip, I hadn't thought that far ahead and likely would
have been in the same boat.

--Chris