On Sat, 2012-08-04 at 20:06 -0700, Andrew McGregor wrote: > Well, thanks Eric for trying it. > > Hmm. How was I that wrong? Because I was supporting that idea. > > Time to think.
No problem Andrew ;) Its seems ECN is not well enough understood. ECN marking a packet has the same effect for the sender : reducing cwnd exactly like a packet drop. Only difference is avoiding the retransmit[s]. It cannot be used only to send a 'small' warning, while other competing non ECN flows have no signal. As far as packet schedulers are concerned, there should be no difference in ECN marking and dropping a packet. I believe linux packet schedulers are fine in this area. Now, there are fundamental issues with ECN itself, out of Codel scope, thats for sure. How widely has been RFC 3540 deployed, anybody knows ? _______________________________________________ Codel mailing list [email protected] https://lists.bufferbloat.net/listinfo/codel
