[80359] in North American Network Operators' Group

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RE: PAIX Outages

daemon@ATHENA.MIT.EDU (Neil J. McRae)
Fri Apr 29 09:25:39 2005

From: "Neil J. McRae" <neil@DOMINO.ORG>
To: "'Alexander Koch'" <koch@tiscali.net>, <nanog@merit.edu>
Date: Fri, 29 Apr 2005 14:25:07 +0100
In-Reply-To: <20050429120813.GA26745@shekinah.ip.tiscali.net>
Errors-To: owner-nanog@merit.edu


> With public peering you simply never know how much spare 
> capacity your peer has free.

So with your key peers you talk to them and find out, but 
I don't see how this is any different if you have a private 
interconnect. Just because you have say a STM-1 into another peer
doesn't mean they have the STM-1 to carry the traffic out, given
your example below I'd say its even more unlikely.

> And would you expect your peer 
> with 400 Mbit/s total to have 400 reserved on his AMSIX port 
> for you when you see 300 at LINX and LINX goes down?

Key ones, yes.
 
> Been there, numerous times. I still tend to say - it depends 
> on your type of peers and traffic per peer.

But your point on public versus private doesn't alter those facts.


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