[c-nsp] BCP for save B/W when transit links are full

[Ted Mittelstaedt]

>-----Original Message-----
>From: cisco-nsp-bounces at puck.nether.net
>[mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Kim Onnel
>Sent: Monday, August 29, 2005 12:31 AM
>To: Cisco-NSP Mailing List
>Subject: [c-nsp] BCP for save B/W when transit links are full
>
>
>Hello,
>
>Our transit links MRTG is up to the roof, ADSL users are doing a fine
>share of p2p, we would like save some b/w, we started with peering
>with local ISPs, but that didnt save much, the p2p is all out to the
>internet,
>
>Our case is that we would like business customers to have more
>priority than residential ones,    we could rate limit based on p2p
>apps ports from 8 AM to 5 PM and then let it free, how does that
>sound, how do you guys do it, that idea didnt have much acceptance
>here, policy as we give customers internet, they do what they want, if
>we want to rate limit, we limit it all, not per app. ?
>
>i would like to push the p2p idea further, can anyone provide a
>list of ports ?
>
>Any other ideas ?
>

Well, actually one way to do it is to analyze who your biggest offenders
are in the p2p realm, then run a p2p client yourself and connect to their
server and see what they are doing.  Our experience is that with this
kind of traffic 95% of the users are not the bandwidth hogs, and the 5%
that are hogs are hogs specifically because they are doing vast amounts
of copyrighted file swapping.  When we find that out we warn them to
turn it off, and if they don't we close their account.  (since sharing
copyrighted
files, basically music and movies, is a AUP violation for us)

Once you get rid of the teenagers who are putting their entire 500 CD
music collection online, and the porno swappers, (and you don't want to
know what kind of porno they are swapping) you will find this
kind of traffic will fall off quite rapidly.

Ted

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