[76800] in North American Network Operators' Group
Re: Smallest Transit MTU
daemon@ATHENA.MIT.EDU (Daniel Hagerty)
Wed Dec 29 18:28:15 2004
To: Joe Abley <jabley@isc.org>
Cc: Tony Rall <trall@almaden.ibm.com>, nanog@merit.edu
From: Daniel Hagerty <hag@linnaean.org>
Date: 29 Dec 2004 18:27:49 -0500
In-Reply-To: Joe Abley's message of "Wed, 29 Dec 2004 17:04:11 -0500"
Errors-To: owner-nanog-outgoing@merit.edu
Joe Abley <jabley@isc.org> writes:
> On 29 Dec 2004, at 16:33, Tony Rall wrote:
>
> > But that only affects tcp traffic - it does nothing to help other
> > protocols.
>
> Are there any common examples of the DF bit being set on non-TCP
> packets?
It's not unheard of for tunelling technologies to run PMTU across
the bearer network to dynamically adjust the MTU of the tunnel. I
think cisco supports it at least.
