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Article #167Re: D.max and FDDI configuration
From: Vernon Schryver
Date: Mon, 07 Sep 1992 00:00
Date: Mon, 07 Sep 1992 00:00
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1553 bytes
In article <1992Sep6.211409.16525@menudo.uh.edu>, stan@casc.math.uh.edu (Stan Hanks) writes: > In article <48073410@Vanadium.NTT.JP> murakami@ntt-20.ntt.jp writes: > >Hello, > > > >I have a question about FDDI limits in its configuration. ... > >So, here is my question. If we have a small number of nodes > >compared to the assumed (1000 links), it seems we can have longer > >distance than 2000km. Is it right? > > Been there. Done it. > > See my paper from Winter '92 USENIX. We've run FDDI rings that are *BIG* -- > right at 80 miles long with only 5 nodes. What TTRT do you use? What is the aggregate ring bandwidth that you use? (in other words, (microseconds while some station is transmitting data) / 1000000) What is the maximum TCP/IP speed you can do between any pair of stations? I wouldn't be surprised if no or few of your 5 stations do TCP/IP on their own behalf, so maybe this is the better question; what is the maximum forwarding rate (either bridging or routing) in Bytes/sec between any pair of stations? Vernon Schryver, vjs@sgi.com
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Newsgroups: comp.dcom.lans.fddi Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!spool.mu.edu!agate!ames!sgi!rhyolite!vjs From: vjs@rhyolite.wpd.sgi.com (Vernon Schryver) Subject: Re: D.max and FDDI configuration Message-ID: <phc8hcg@rhyolite.wpd.sgi.com> Organization: Silicon Graphics, Inc. Mountain View, CA References: <48073410@Vanadium.NTT.JP> <1992Sep6.211409.16525@menudo.uh.edu> Date: Mon, 7 Sep 1992 00:00:33 GMT Lines: 30