[188151] in North American Network Operators' Group
Re: Internet Exchanges supporting jumbo frames?
daemon@ATHENA.MIT.EDU (Tassos Chatzithomaoglou)
Thu Mar 10 01:23:41 2016
X-Original-To: nanog@nanog.org
Date: Thu, 10 Mar 2016 08:23:30 +0200
From: Tassos Chatzithomaoglou <achatz@forthnet.gr>
To: nanog@nanog.org
In-Reply-To: <20160310004407.GA6838@excession.tpb.net>
Errors-To: nanog-bounces@nanog.org
Niels Bakker wrote on 10/3/16 02:44:
> * nanog@nanog.org (Kurt Kraut via NANOG) [Thu 10 Mar 2016, 00:59 CET]:
>> I'm pretty confident there is no need for a specific MTU consensus and not all IXP participants are obligated to raise their interface MTU if the IXP starts allowing jumbo frames.
>
> You're wrong here. The IXP switch platform cannot send ICMP Packet Too Big messages. That's why everybody must agree on one MTU.
>
>
Isn't that the case for IXP's current/default MTU?
If an IXP currently uses 1500, what effect will it have to its customers if it's increased to 9200 but not announced to them?
--
Tassos
