[j-nsp] BGP mtu-discovery and current behaviour
Pedro Roque Marques
roque at juniper.net
Tue Nov 16 13:15:17 EST 2004
Pekka Savola writes:
> Mmm, yes :-). But what size does the BGP limit the packet size when
> it's disabled? 512 bytes as suggested by someone? The MTU of the
> egress interface used to send the packet? Something else?
It is the default *BSD TCP behaviour... 512 is the default for
non-connected links. If directly connected the mtu is used.
Just what you would expect from a regular BSD stack (or derivative).
I'm unaware of an OS that doesn't behave like this when TCP path
mtu is disabled. As a different behaviour became common place since i
stopped paying attention ?
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