From owner-freebsd-hackers Wed May 7 20:10:20 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id UAA04212 for hackers-outgoing; Wed, 7 May 1997 20:10:20 -0700 (PDT) Received: from panda.hilink.com.au (panda.hilink.com.au [203.2.144.5]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id UAA04198 for ; Wed, 7 May 1997 20:10:07 -0700 (PDT) Received: (from danny@localhost) by panda.hilink.com.au (8.8.5/8.7.3) id NAA04070; Thu, 8 May 1997 13:14:29 +1000 (EST) Date: Thu, 8 May 1997 13:14:28 +1000 (EST) From: "Daniel O'Callaghan" To: Shawn Carey cc: freebsd-hackers@freebsd.org Subject: Re: FTP Performance In-Reply-To: <3371406D.41C67EA6@servtech.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Wed, 7 May 1997, Shawn Carey wrote: > Daniel O'Callaghan wrote: > [...] > > > > 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. > Yes! That did it, thanks very much! I'm glad. > One small thing: The only way I was able to effectively change the MTU > was by hacking the ppp source to change DEF_MRU to 1064 in hdlc.h. > Using ppp's "set mru" and "set mtu" options did not work - the interface > would go back to 1500 as soon as I connected with my ISP, even though I > changed tun0's MTU manually with ifconfig. Am I doing something wrong, > or is ppp broken? At any rate, I can certainly live with this since my > ISP is the only system I typically connect to. This is strange. Perhaps some else can comment. Brian? Eivind? Andrey? Danny