Re: hotmail not dealing with ECN

[David S. Miller]

Jamie Lokier writes:
 > Does ECN provide perceived benefits to the node using it?

Yes, endpoints and intermediate routers can tell the TCP sender about
congestion instead of TCP having to guess about it based upon observed
packet drop.

It is a major enhancement to performance over any WAN.

The endpoint based congestion notification happens _now_ if both
sides speak ECN.  The router based notification will be happening
in the near future as Cisco and others deploy ECN speaking versions of
their router software.

Later,
David S. Miller
[e-mail]