[188111] in North American Network Operators' Group
Re: Internet Exchanges supporting jumbo frames?
daemon@ATHENA.MIT.EDU (Nick Hilliard)
Wed Mar 9 13:14:42 2016
X-Original-To: nanog@nanog.org
X-Envelope-To: nanog@nanog.org
Date: Wed, 09 Mar 2016 18:14:29 +0000
From: Nick Hilliard <nick@foobar.org>
To: Saku Ytti <saku@ytti.fi>
In-Reply-To: <CAAeewD9dzFBZ=+qXwoVDm6Z36A8Wj_mWYgWn6MeQ5nH3nUEOYw@mail.gmail.com>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
Saku Ytti wrote:
> Poller in the IXP has too large MTU, it tries to send ping packets
> with max_size+1, if they work, customer has too large MTU. Also it
> tries to send max_size, if it does not work, customer has too small
> MTU. As icing on top, it tries to send max_size+1 but fragments it to
> max_size and 1, and sees what comes back.
you're recommending that routers at IXPs do inflight fragmentation?
Nick
