nanog mailing list archives

RE: MPLS VPNs or not?


From: "Kavi, Prabhu" <prabhu_kavi () tenornetworks com>
Date: Wed, 8 Aug 2001 12:53:58 -0400


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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