[100613] in North American Network Operators' Group

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RE: Can P2P applications learn to play fair on networks?

daemon@ATHENA.MIT.EDU (michael.dillon@bt.com)
Mon Oct 29 13:03:04 2007

Date: Mon, 29 Oct 2007 17:02:29 -0000
In-Reply-To: <47260A25.5070101@bogus.com>
From: <michael.dillon@bt.com>
To: <nanog@merit.edu>
Errors-To: owner-nanog@merit.edu


> When we put the application intelligence in the network. We=20
> have to upgrade the network to support new applications. I=20
> believe that's a mistake from the application innovation angle.

Putting middleboxes into an ISP is not the same thing as
putting intelligence into the network. Think Akamai for instance.

> Describing more accurately to the endpoints the properties of the
> network(s) to which they are attached is something that is=20
> perhaps desirable. most work in this area is historically=20
> done in the transport area, but congestion control is not=20
> really the only angle from which to approach the problem.

If the work focuses on making a P2P protocol that knows about
ASNums and leverages middleboxes sitting in an ISP's network,
then you would have a framework that can be used for more than
just congestion control.

> Host's treat network's as black boxes because they don't=20
> really have any other choice in the matter.

A router is a host that learns about the network topology by
means of routing protocols, and then adjusts its behavior=20
accordingly. Why can't other hosts similarly learn about the
topology and adjust their behavior?

--Michael Dillon

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