We are about to purchase several of these OSR's. Here is what we know about the OSR. If you look at the roadmap for the OSR, Cisco is positioning

My understanding is that the ESR will serve as high-density aggregation for traditional WAN circuits. 56Kb to DS-3. The OSR will serve as high-density aggregation for DS-3 ot OC-192. Bart Burns Network Engineer Acxiom Corporation (501) 342-4167 email bart.burns@acxiom.com -----Original Message----- From: Neil J. McRae [mailto:neil@COLT.NET] Sent: Thursday, October 19, 2000 9:35 AM To: baburn@acxiom.com Cc: nanog@merit.edu Subject: Re: the new 6509 OSR I thought that the ESR was the new 75xx class box? Regards, Neil. [Charset iso-8859-1 unsupported, filtering to ASCII...] this

platform to be the next 75xx class device only it will be for high-speed connectivity at DS-3 or greater. It will scale all the way to OC-192 or 10 Gig Ethernet. The main reason we are looking at the OSR vs a plain jane 6509 is because the OSR can serve as a high-speed ingress point to the MPLS backbone that we are about to deploy. The OSR interfaces have deeper interface buffers than the plain 6509.

Bart Burns Network Engineer Acxiom Corporation (501) 342-4167 email bart.burns@acxiom.com <<Bart Burns (E-mail).vcf>>

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