From: jon@branch.com (Jon Zeeff) Subject: Re: MCI [ATM overhead] To: salo@msc.edu (Tim Salo) Date: Thu, 21 Mar 1996 09:04:44 -0500 (EST) Cc: wolfgang@whnet.com, nanog@merit.edu

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Line Rate 155.520 Mbps Available to ATM 149.760 Available to AAL 135.632

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The reader can apply their favorite packet size distributions to these numbers. Having said all that, I am not sure where that leaves us.

That leaves us with the throughput of two DS3 links. It doesn't seem worth the effort given how short term a solution it is.

I am not sure I follow your arithmetic. The line rate on a DS-3 is 44.736 Mbps. You need to subtract several overheads from that: at least some DS-3 and some PPP overhead. How does that add up to half of the throughput of an OC-3c IP/ATM link? As long as I took this opportunity to inquire, what to you mean by "given how short term a solution it is?" -tjs