[nsp] Path MTU discovery

[Robert Boyle]

At 02:41 PM 4/18/2004, Jared Mauch <jared at puck.nether.net> wrote:
>On Sun, Apr 18, 2004 at 11:37:53AM -0700, Christopher J. Wolff wrote:
> > Hello,
> >
> > Just curious to see if anyone here has seen a real benefit to enabling TCP
> > path mtu discovery on their routers and servers.  Thank you.
>
>         Yes, you can see significant bgp convergence improvements
>by enabling it on a Cisco router.
>
>         by default it uses a 536 byte mss, by increasing it, you can
>see much fewer packets to transmit bgp updates.  (ie: 1480 on ethernet,
>or even larger if you have a all sonet core network).

Jared,

Both of you are mentioning this in a general sense. I have use mtu path 
discovery for years with tunnel interfaces. Is there a global config 
command or is this simply a BGP specific per peer config option?

-Robert


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