I found the presentation on Service Provider QoS you mention. It's very 
interesting.

Thanks and thanks to everyone who answered.

At 06:26 PM 12/12/01, Peter Whittle wrote:
>Priscilla,
>
>It depends!
>
>There is a new facility known as AToM (Any Transport over MPLS Tunnel)
>that supports ATM over an MPLS core. (If you implement the MPLS core
>over Gigabit Ethernet then yes you can carry ATM over Gigabit Ethernet.)
>
>It is used by some new generation service providers to offer ATM, Frame
>Relay, and leased line services to their customers when in fact they
>really only have an IP based network.
>
>Some details of it are covered in ATM Forum AF-AIC-0178.000 August 2001.
>(you can down load it from ATM Forum web site)
>
>I also recollect seeing it on some Cisco Carrier MPLS slides. I'll try
>to dig out the reference.
>
>Try a CCO search on ATOM / looking at the MPLS & ATM pages.
>
>There is a mention of it in:
>
>"Service Provider QoS, Providing e2e Guarantees by Vijay Krishnamoorthy
>(Cisco IOS Technologies Div April 2001)" I'll try to find a URL for the
>article.
>
>Peter
>
>In article , Priscilla Oppenheimer
>  writes
> >My co-author added this statement to the book I'm working on:
> >
> >".... an ATM virtual circuit may begin on an OC-3 fiber link, cross over
to
> >a T3 line, pass across a Gigabit Ethernet fiber backbone, and end up going
> >out through an OC-12 fiber link. This may be an implementation of a single
> >ATM circuit, however."
> >
> >Could an ATM virtual circuit really span an Ethernet backbone??
> >
> >Thanks! I don't want to be one of those authors that propagates
> >misinformation. ;-) Seriously, some mistakes are unavoidable, but this one
> >seems avoidable (if it is a mistake)
> >
> >Priscilla
> >
> >________________________
> >
> >Priscilla Oppenheimer
> >http://www.priscilla.com
> >html
> >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
>
>--
>Peter Whittle
________________________

Priscilla Oppenheimer
http://www.priscilla.com




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