Date: Thu, 8 May 1997 10:42:42 +1000 (EST) From: "Daniel O'Callaghan" <danny@panda.hilink.com.au> To: Shawn Carey <smc@servtech.com> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: FTP Performance Message-ID: <Pine.BSF.3.91.970508103844.4479D-100000@panda.hilink.com.au> In-Reply-To: <3370BCEB.1CFBAE39@servtech.com>
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On Wed, 7 May 1997, Shawn Carey wrote: > In short, trying to get files out of my system, either by putting as a > client or by being get'ed as a server doesn't work well at all. > > To make matters even stranger (or maybe not), all of these problems > disappear if I only FTP to/from systems inside my ISP's routers. I have > contacted them about this, and they claim that the problem lies with the > systems I am trying to transfer files to/from. I could believe this if > the throughput were roughly the same no matter which direction the bits > were travelling. Ahah! Are they using Annex routers? If they are using an old version of the software, they are probably not working with TCP extensions properly. Try # sysctl -w net.inet.tcp.rfc1644=0 # sysctl -w net.inet.tcp.rfc1323=0 If that works, turn off tcp extensions in /etc/sysconfig | /etc/rc.conf Alternatively, try reducing the MTU and MRU of ppp's tun interface to 552 or 1064. That cured Robert Chalmers' problem with his ISP's Ascend routers. Danny
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