[32914] in North American Network Operators' Group
RE: Where are ATM NAPs going?
daemon@ATHENA.MIT.EDU (Jay Ford)
Mon Dec 18 12:15:03 2000
Date: Mon, 18 Dec 2000 11:12:59 -0600 (CST)
From: Jay Ford <jay-ford@uiowa.edu>
Reply-To: Jay Ford <jay-ford@uiowa.edu>
To: Christian Kuhtz <ck@arch.bellsouth.net>
Cc: nanog@merit.edu
In-Reply-To: <NEBBJKIJGLMGELMBGHEOMEFOCKAA.ck@arch.bellsouth.net>
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I wrote:
> > From a research university perspective, the AADS NAP is a cool thing. It
> > lets me do peering & various types of transit on a single circuit, & the
> > availability of the route servers is nice. The full mesh of PVCs removes
> > most of the layer 1-2 pain involved with firing up new interactions. The
> > circuit to get there isn't cheap, but it seems worth it based on my
> > experience.
On Mon, 18 Dec 2000, Christian Kuhtz wrote:
> Do you have any expectations with regards to service provided between various
> peers and the fact that some peers may (depending on your ATM QoS) step onto
> other peering partners?
The short answer is "no". ;^)
The longer answer is that I'm aware of the potential chaos & nondeterminism
associated with a multi-user contention-based UBR service such as that
offered by the AADS NAP. It's certainly an issue, but it doesn't disqualify
it from being a useful piece of a connectivity puzzle provided that one
utilizes it with eyes open about its characteristics.
________________________________________________________________________
Jay Ford, Network Engineering Group, Information Technology Services
University of Iowa, Iowa City, IA 52242
email: jay-ford@uiowa.edu, phone: 319-335-5555, fax: 319-335-5505
