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[altq 1133] Re: ECN implementation
Nicolas Christin wrote:
> > In a couple of months, I guess. But I'm not sure if I can support ECN
> > in TCP for all the BSDs...
> In that respect, I have a very naive question... ECN is to be handled by
> the sender and the receiver of a TCP flow. What does a queuing scheme
> have to do with that except for marking the CE bit?
> Is that the struct field corresponding to this CE bit in the different
> BSDs that causes a problem? Something related?
> Sorry if this question sounds dumb, but end-to-end congestion control and
> per-hop scheduling and dropping seem pretty orthogonal to me.
You are right that they are orthogonal. But, without TCP support, the
IP level ECN is essentially useless and I can't even test my
> P.S.: Quick auxiliary question (I could look it up by myself, but I'm
> too lazy :-): does the RFC in question specify anything about ECN nonces?
Yes, the new ECN RFC mentions nonces briefly but the details are in
a different draft.