[e2e] Why do we need congestion control?
emmanuel.lochin at isae.fr
Thu Apr 4 05:22:27 PDT 2013
On 04/04/2013 13:31, Detlef Bosau wrote:
> Simple question. Where is "fair dropping" that different from "fair
The FairDrop queue we have implemented to drive our tests with DCTP
simply drops packet of the most opportunistic flows in the queue.
Meaning that if you have 3 flows and a full queue of 30 packets, you
should have 10 packets of each flow enqueued.
> I'm with you that we try to obviate the need of some reasonable
> resource management in the Internet. However: When you require some
> "fair dropping" mechanism, you could simply use the same
> implementation and instead of scheduling n flows in a round robin
> manner like this: "Each turn, one flow is served and n-1 packets are
> dropped" frame as "Each turn, one flow is served and the other n-1
> flows wait." And then you have the fair queueing approach which
> already well exists. And which you reject because it would be too
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