Internet Exchanges supporting jumbo frames?
Niels Bakker
niels=nanog at bakker.net
Thu Mar 10 00:44:07 UTC 2016
* nanog at 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.
>So we have Tier-1 backbones moving jumbo frames around continents,
>why in a controlled L2 enviroment that usually resides in a single
>building and managed by a single controller having jumbo frames is
>that concerning?
Because the L3 devices connected to it aren't controlled by a single entity.
-- Niels.
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