Please enable ECN by default
|Reported by:||jch@…||Owned by:||developers|
All Linux kernels since early 2.0 have had ECN support, but it is disabled by default.
ECN is a big win on wireless links, as it increases the likelihood of a TCP connection
reacting quickly after a link outage. ECN requires both host and router modifications,
and under Linux the router modification is only effective if the host modification is active.
- Host modification
Add the following to /etc/sysctl.conf:
- Router modification
With the above change, the qos-scripts package will automatically enable ECN for all interfaces
with a red queuing discipline.
Ideally, a stock OpenWRT router would implement ECN, but this is difficult to do with current
Linux kernels, which can only do ECN with red.
Thanks for listening,