Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!mcsun!cernvax!chx400!cgch!wasc From: wasc@cgch.uucp (Armin Schweizer) Newsgroups: comp.dcom.lans Subject: Re: Sun's FDDI Message-ID: <1990Jun8.055650.22603@ciba-geigy.ch> Date: 8 Jun 90 05:56:50 GMT References: <9536@pt.cs.cmu.edu> Sender: news@ciba-geigy.ch (USENET News Agent) Organization: CIBA-GEIGY AG, Basle, Switzerland Lines: 17 In the system configuration you drawed up, it is likely, that the transfer of 1 MByte takes the same time on ethernet as it does on FDDI. The bottleneck in transferring files between just two machines is NOT the ethernet, but the file transfer software. All the en/decapsulation and buffer management work limits the bandwidth below the one given by ethernet, even on an unloaded machine. regards arminius Armin R. Schweizer, CIBA-GEIGY AG, R1045.P.06, WRZ 4002 Basel / Switzerland phone: -41-61-697'79'46 e-mail: cgch!wasc@relay.EU.net