North American Network Operators Group
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Re: Can P2P applications learn to play fair on networks?
- From: Sam Stickland
- Date: Tue Oct 23 09:56:05 2007
Iljitsch van Beijnum wrote:
On 22-okt-2007, at 18:12, Sean Donelan wrote:
Network operators probably aren't operating from altruistic
principles, but for most network operators when the pain isn't spread
equally across the the customer base it represents a "fairness"
issue. If 490 customers are complaining about bad network
performance and the cause is traced to what 10 customers are doing,
the reaction is to hammer the nails sticking out.
The problem here is that they seem to be using a sledge hammer:
BitTorrent is essentially left dead in the water. And they deny doing
anything, to boot.
A reasonable approach would be to throttle the offending applications
to make them fit inside the maximum reasonable traffic envelope.
What I would like is a system where there are two diffserv traffic
classes: normal and scavenger-like. When a user trips some predefined
traffic limit within a certain period, all their traffic is put in the
scavenger bucket which takes a back seat to normal traffic. P2P users
can then voluntarily choose to classify their traffic in the lower
service class where it doesn't get in the way of interactive
applications (both theirs and their neighbor's). I believe Azureus can
already do this today. It would even be somewhat reasonable to require
heavy users to buy a new modem that can implement this.
Surely you would only want to set traffic that falls outside the limit
as scavenger, rather than all of it?
S
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