[35224] in North American Network Operators' Group

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Re: Does peering at an ATM MAE require a router that does ABR?

daemon@ATHENA.MIT.EDU (Kevin Oberman)
Thu Mar 1 16:38:27 2001

Message-Id: <200103012136.f21La3L32712@ptavv.es.net>
To: "tek weeny" <tekweeny@hotmail.com>
Cc: nanog@merit.edu
In-reply-to: Your message of "Thu, 01 Mar 2001 20:57:54."
             <F272Rf6Ci6nx8dyDd3O0000e52c@hotmail.com> 
Date: Thu, 01 Mar 2001 13:36:03 -0800
From: "Kevin Oberman" <oberman@es.net>
Errors-To: owner-nanog-outgoing@merit.edu


In the past, the MAE ATM switches ran ABR where you specified the MCR
and traffic was policed at a PCR of 2xMCR, although almost no one at
the MAEs actually used ABR on their connections. Almost everyone used
VBR-nrt and many did not even realize that the use of ABR could have
been beneficial.

With "best effort" PVCs, this really becomes moot although these are
still technically ABR.

R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net			Phone: +1 510 486-8634


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