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RE: MPLS VPNs or not?

daemon@ATHENA.MIT.EDU (Kavi, Prabhu)
Wed Aug 8 13:03:06 2001

Message-ID: <6B190B34070BD411ACA000B0D0214E56CB812D@newman.tenornet.com>
From: "Kavi, Prabhu" <prabhu_kavi@tenornetworks.com>
To: "'Travis Pugh'" <tdp@discombobulated.net>
Cc: nanog@merit.edu
Date: Wed, 8 Aug 2001 12:53:58 -0400 
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Absolutely right, which (along with TE on IP routers) is why
I think ATM has outlived its usefulness in the backbone 
of an ISP network.

Prabhu


> -----Original Message-----
> From: Travis Pugh [mailto:tdp@discombobulated.net]
> Sent: Wednesday, August 08, 2001 12:40 PM
> To: Kavi, Prabhu
> Cc: nanog@merit.edu
> Subject: Re: MPLS VPNs or not? 
> 
> 
> > At one time, UUNET's traffic was simply outrunning the
> > ability of L3 routers to keep up.  Their choices were to:
> 
> That does invite a companion observation: at one time, I 
> could reasonably
> guess that their traffic was outrunning the ability of Layer 
> 2 ATM switches
> to keep up, as ATM switch vendors have lagged well behind the 
> curve in OC48
> and OC192 trunk capability, and IP router vendors haven't 
> even put OC48 ATM
> linecards on the market.
> 
> -travis
> 
> 

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