[menog] RE: [ncc-regional-middle-east] Peering
woody at pch.net
Wed Aug 8 06:44:23 GMT 2007
On Aug 7, 2007, at 12:17 PM, Osama Dosary (dosary) wrote:
> Sometimes its not a good idea to force peering or IX participation.
> I'm sure Bill or Phil address this point.
Yeah... A regime in which everyone is required to peer with everyone
else is usually called a "Mandatory Multi-Lateral Peering Agreement"
or MMLPA, and I think those are a bad idea, because they discourage
many of the larger ISPs and carriers from wanting to participate
fully, and they remove the most important check-and-balance on good
behavior by all ISPs.
Let's say, for example, that one of your competitors is selling a lot
of service to spammers, who are annoying your customers. Your own
policy forbids your customers from sending spam, so you're a "good
Internet citizen." Your competitor can make a little bit more money,
if he takes money from spammers who you and the rest of his
competitors refused to serve, but he's making that money at everyone
else's expense. A tragedy of the commons. In a normal market, you'd
send him a warning or two to clean up his business, and if he ignored
them, you'd "de-peer" him, or disconnect your peering session. As
more and more of his peers de-peered him, his costs would go up, and
eventually he'd be losing money instead of making money, so he'd
clean up his act, or go out of business. That's a good feedback
loop. If everyone is required to peer with everyone, you lose that
feedback that keeps people behaving well.
Also, big ISPs and carriers typically have legal departments that
review every agreement they sign. A very basic principle of law is
that it's unwise to sign a contract which binds you to an unknown
number of not-yet-named parties, which is what an MMLPA is: you're
agreeing in advance to peer with people who arrive later. You don't
know how many of them there will be, or who they will be. The legal
departments of bigger companies typically won't approve any contract
And most simply, bigger carriers will only peer with other networks
of similar size. They'd _like_ to peer with those other networks,
but they'll find other arrangements if someone tells them that
peering with someone their own size also requires them to peer with
someone smaller. That's insufficient leverage to compel them to
peer, as we've seen in Perth, Australia, where the ISPs have been
trying that tack for a long time, without success.
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 186 bytes
Desc: This is a digitally signed message part
Url : http://lists.menog.net/mailman/private/menog/attachments/20070807/6054d103/PGP.bin
More information about the Menog