From owner-freebsd-current@FreeBSD.ORG Wed Jul 9 13:33:09 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0D19E37B401 for ; Wed, 9 Jul 2003 13:33:09 -0700 (PDT) Received: from mail.chesapeake.net (chesapeake.net [208.142.252.6]) by mx1.FreeBSD.org (Postfix) with ESMTP id E630043FA3 for ; Wed, 9 Jul 2003 13:33:07 -0700 (PDT) (envelope-from jroberson@chesapeake.net) Received: from localhost (jroberson@localhost) by mail.chesapeake.net (8.11.6/8.11.6) with ESMTP id h69KX2v14005; Wed, 9 Jul 2003 16:33:02 -0400 (EDT) (envelope-from jroberson@chesapeake.net) Date: Wed, 9 Jul 2003 16:33:02 -0400 (EDT) From: Jeff Roberson To: Kenneth Culver In-Reply-To: <20030709145853.G5031@alpha.yumyumyum.org> Message-ID: <20030709163055.T17881-100000@mail.chesapeake.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: John Polstra cc: Julian Elischer cc: current@freebsd.org Subject: Re: wierd dsl performance with -CURRENT X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Jul 2003 20:33:09 -0000 On Wed, 9 Jul 2003, Kenneth Culver wrote: > > AH so it's direct DSL with either a fixed IP or DHCP or similar? > > Yep, basically I don't have a DSL modem, I have an Ethernet to ATM bridge > (using AAL5 encapsulation I believe) running over the DSL. I have 2 fixed > IP's, and in my normal configuration, my two BSD boxes are hooked up to a > switch that also hooks to the DSL modem. One of my BSD boxes also runs > ipfilter/ipnat/dnscache/dhcpd/postfix for my local mail and to allow the > other 4 people living in the house, as well as my mac (macos X 10.2.6), my > pc laptop, and my dreamcast to access the internet. That should be enough > info :-) > > > in that case, then what does it look like speed-wise if you transfer > > from the internet to the MAC using the BSD machine as a router? > > > Transferring anything through the BSD NAT box shows the same performance > issues, as well as transferring directly from BSD to the DSL modem on both > of my BSD machines. Using windows or the mac directly connected to the DSL > modem shows the normal bandwidth capability. I know the hardware isn't the > problem, both of the BSD boxes are totally different. If you think it > matters I can send the specs too. > > > Ken Can you do a 'netstat -s -p tcp >> tcpstats' before and after the transfer? This should tell us if there were retransmits etc. It could be a difference in minimum rtt values or a congestion issue that results in timeout for our stack but some other recovery mechanism with other stacks. Thanks, Jeff