[Iccrg] Heresy following "TCP: Train-wreck"

[Bob Briscoe]

Dirceau,

At 21:29 04/04/2008, Dirceu Cavendish wrote:
>Regarding place in the network, I mean everywhere - I guess all, as 
>per your question.

So then, a follow-on question is: if there are flows passing through 
router R1 from a user, how does R1 take account of flows from the 
same user not going through R1 at all?

IOW, I'm questioning whether the fairness question should be focused 
on sharing out each link (whether between flows or users) as it has 
been for the last n decades, or whether that was a distraction 
because we should have been looking at how much traffic is crossing 
trust boundaries between the principals (individuals, organisations, 
network operators), and how much of that traffic is causing 
congestion on /any/ other link. For instance, you have to be able to 
bring swarmcasting (e.g. BitTorrent) into your fairness framework.

I think that's where Matt is going as well - moving the focus of 
fairness to the edges (the trust boundaries).


Bob


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Bob Briscoe, <bob.briscoe at bt.com>      Networks Research Centre, BT Research
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