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Re: US-Asia Peering

  • From: Stephen J. Wilcox
  • Date: Thu Jan 09 21:01:02 2003

On Thu, 9 Jan 2003, Bill Woodcock wrote:

>     > 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.

Theres an increasing number of "psuedo-wire" connections tho, you could regard
these L2 extensions an extension of the switch as a whole making it

Where the same pseudo wire provider connects to say LINX, AMSIX, DECIX your only
a little way off having an interconnection of multiple IXs, its possible this
will occur by accident ..


>     > >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

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