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- From: robelr@bronze.ucs.indiana.edu (Allen Robel)
- Subject: Re: Comment made at Next Generation Networks conference
- Message-ID: <By3Lru.BxE@usenet.ucs.indiana.edu>
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- Organization: Indiana University
- References: <skofpgc@sgi.sgi.com>
- Date: Sun, 22 Nov 1992 03:31:05 GMT
- Lines: 41
-
- Rob,
-
- Thanks for your analysis!
-
- >Why do you exclude application data throughput? Here are some quick
-
- Just thought that it might simplify things not having to worry about
- workstation-specific details (adaptor I/O, memory copies, bus speeds
- and features etc.).
-
- >And that doesn't even address the issue of FDDI being a shared medium and
- >ATM being a switching-fabric system...
-
- Yes, this is really what I was getting at. Given a certain set of
- conditions any one station might have considerably less throughput than
- FDDI's theoretical max throughput (at the extreme, a fully maxed out
- FDDI in both circumference and number of stations and all stations
- transmitting at their peak rate for instance). I was just wondering
- how quickly, because of shared medium considerations, FDDI falls below
- ATM in per-station throughput.
-
- >No, I fear the eminent McQuillan may have mis-spoken this time. (Or you may
- >have mis-quoted perhaps?)
-
- Nope. On page II-27 of the spiralbound (November 16th) handout, top
- slide, second bullet item he states:
-
- "100 Mbs ATM delivers Less Bandwidth Than 100 Mbs FDDI"
-
- To be fair, McQuillan's presentations made a lot of sense taken
- as a whole, and the conference was well worth the time and money,
- and he was quite cognizant of ATM's inherent benifits, and I DO
- have a lot of respect for his ability to synthesize complex issues.
-
- allen
-
- --
- Allen Robel robelr@mythos.ucs.indiana.edu
- University Computing Services ROBELR@IUJADE.BITNET
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