Re: is non-inheritance of congestion control algorithm from the listen socket a bug or a feature?
From: Eric Dumazet <hidden>
Date: 2011-11-29 21:56:33
From: Eric Dumazet <hidden>
Date: 2011-11-29 21:56:33
Le mardi 29 novembre 2011 à 16:52 -0500, David Miller a écrit :
There is really no reason to keep the current behavior. If an application sets the congestion control algorithm on a listening socket to a non-default value, what effect could possibly be intended? Congestion control doesn't even come into play at all on a listening socket, therefore the only logical expectation is that it inherits to the child. The only other logical behavior would be to forbid this operation on a listening socket, since it has no effect, but that doesn't make any sense now does it? :-)
Moreover, an application can use setsockopt(TCP_CONGESTION) before calling listen() (while socket is still in CLOSE state)