Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!njin!princeton!phoenix!rpbert
From: rpbert@phoenix.Princeton.EDU (Raymond Pierrehumbert)
Newsgroups: comp.protocols.tcp-ip
Subject: MacII FTP speeds on Ethernet
Keywords: MacII, FTP,Telnet,Ethernet
Message-ID: <9559@phoenix.Princeton.EDU>
Date: 23 Jul 89 04:23:22 GMT
Organization: Princeton University, NJ
Lines: 13

Can somebody tell me what the bottleneck is on FTP transfer rates for
a MacII on ethernet?  I am running two MacII's on a subnet in the 
Atmospheric Sciences program here at Princeton, with a Sun 3/280
file server also on the net.  I have the Apple ethernet cards in
the machines, and am running NCSA Telnet 2.3 (which has server
FTP support).  Basically, between the mac and the server I am
getting no better than about 35K bytes/sec for binary transfers,
no matter how I tweak the protocol parameters.  On the same net,
Sun 3/50's routinely do about 70K bytes/sec at the same time. On
the TCP/IP scorecard posted here earlier, I have seen speeds of
up to 100K bytes/sec posted for IBM PC ftp speeds.  Are my
experiences typical?  Is there anything I can do to speed things
up?  Is the problem in software or in hardware?