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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.ysu.edu!news.radio.cz!europa.clark.net!disgorge.news.demon.net!demon!dispatch.news.demon.net!demon!arg1.demon.co.uk!server.arg.sj.co.uk!nobody From: Andrew Gordon <andrew.gordon@arg1.demon.co.uk> Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: Outbound ftp traffic is SLOW (< .5kb/sec.) HELP!! Date: Thu, 12 Jun 1997 00:28:35 +0100 Message-ID: <339F34A3.41C67EA6@arg1.demon.co.uk> References: <865977993.158@dejanews.com> NNTP-Posting-Host: arg1.demon.co.uk X-NNTP-Posting-Host: arg1.demon.co.uk [194.222.34.166] X-Mailer: Mozilla 3.01Gold (X11; I; FreeBSD 2.2-STABLE i386) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 19 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:42769 ils@conn.com wrote: > > I have reviewed several news group responses to a problem that I am > having regarding EXTREMELY SLOW transfer rates (outbound only) from ftp > and web page request outside my server. The outbound rates start at about > 1.3kb/sec. and steadly decrease down to .3kb/sec. I have a 28.8 modem and > am running Freebsd 2.1.7 release. Are you sure flow control (RTS/CTS) is working between the PC and the modem? This needs to be correctly configured both in the modem and in the ppp/pppd configuration (and also needs enough wires in the cable!). Lack of outward flow control would cause exactly the problem you describe - initially, all would be well, but as the window opens, the modem's buffers overflow and massive packet loss/retries occur, leading to low overall throughput. You don't normally notice a lack of flow control on inbound transfers, as the PC is usually faster than the modem.