Re: draft-wbeebee-ipv6-cpe-router-04 comments

[Mikael Abrahamsson <swmike@swm.pp.se>]

On Mon, 20 Jul 2009, Iljitsch van Beijnum wrote:

> That's no excuse. You can easily turn off PMTUD or have too bigs 
> generated elsewhere in the network, PMTUD black holes are 100% 
> avoidable.

In the E in IETF it's avoidable, yes.

In the real world, sorry, not always. Also, we're not very good at 
providing tools for testing this so that people actually know where and 
why it's a problem, and we're not good at inventing mechanisms to handle 
the imperfect world.

--
Mikael Abrahamsson    email: swmike@swm.pp.se