[95985] in North American Network Operators' Group
Re: Thoughts on increasing MTUs on the internet
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Thu Apr 12 16:07:50 2007
Date: Thu, 12 Apr 2007 22:05:43 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: NANOG list <nanog@merit.edu>
In-Reply-To: <OF8280E58D.5D1A77DC-ON852572BB.0062E114-852572BB.0064118A@csc.com>
Errors-To: owner-nanog@merit.edu
On Thu, 12 Apr 2007, Joe Loiacono wrote:
> Large MTUs enable significant throughput performance enhancements for
> large data transfers over long round-trip times (RTTs.) The original
This is solved by increasing TCP window size, it doesn't depend very much
on MTU.
Larger MTU is better for devices that for instance do per-packet
interrupting, like most endsystems probably do. It doesn't increase
long-RTT transfer performance per se (unless you have high packetloss
because you'll slow-start more efficiently).
--
Mikael Abrahamsson email: swmike@swm.pp.se
