Thoughts on increasing MTUs on the internet

Thu Apr 12 20:05:43 UTC 2007

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 at swm.pp.se