[c-nsp] BGP MSS=576 bytes

Peter Rathlev peter at rathlev.dk
Wed Feb 11 14:07:16 EST 2009


On Wed, 2009-02-11 at 12:31 -0500, Paul Stewart wrote:
> I just checked some peers at random here on 6500 and 7600's - they all
> defaulted to 1440 in an Ethernet environment...

And they're not directly connected eBGP peers? Those default to using
the interface MTU. Internal neighbors should default to 536 (or 516 or
thereabout) AFAIK. At least that's how it's been for our 6500s running
SXF for years.

Strange though if the OP example of an eBGP peer is directly connected,
yet still uses 536 as default MTU.

Regards,
Peter




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