[54595] in North American Network Operators' Group
Re: US-Asia Peering
daemon@ATHENA.MIT.EDU (Bill Woodcock)
Thu Jan 9 20:51:38 2003
Date: Thu, 9 Jan 2003 17:44:41 -0800 (PST)
From: Bill Woodcock <woody@pch.net>
To: "William B. Norton" <wbn@equinix.com>
Cc: nanog@merit.edu
In-Reply-To: <5.1.0.14.2.20030109164826.0164fc70@nemo.corp.equinix.com>
Errors-To: owner-nanog-outgoing@merit.edu
> The LINX consists of a handful
> of distributed and interconnected switches such that customers are able to
> choose which site they want for colo. Likewise for the AMS-IX and a handful
> of other dominant European exchanges.
Correct. Within the metro area. That is, as has been documented many
times over, a necessary condition for long-term stability.
> >It's one of the many, many ways in which exchange points commit suicide.
>
> I'd love to see a list of the ways IXes commit suicide. Can you rattle off
> a few?
1) Cross the trust threshhold in the wrong direction.
2) Cross the cost-of-transit threshhold in the wrong direction.
3) Increase shared costs until conditions 1 and/or 2 are met.
Those are sort of meta-cases which encompass most of the specific failure
modes. Of course, you can always declare yourself closed or obsolete, a
al MAE-East-FDDI, which I guess would be a fourth case, but rare.
-Bill
