From owner-freebsd-net Fri Feb 21 19:55:17 2003 Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 44FD537B401 for ; Fri, 21 Feb 2003 19:55:16 -0800 (PST) Received: from odysseus.silby.com (d19.as7.nwbl0.wi.voyager.net [169.207.128.147]) by mx1.FreeBSD.org (Postfix) with ESMTP id 824BE43FAF for ; Fri, 21 Feb 2003 19:55:14 -0800 (PST) (envelope-from silby@silby.com) Received: from odysseus.silby.com (localhost [127.0.0.1]) by odysseus.silby.com (8.12.7/8.12.7) with ESMTP id h1M3qKJZ002134; Fri, 21 Feb 2003 21:52:20 -0600 (CST) (envelope-from silby@silby.com) Received: from localhost (silby@localhost) by odysseus.silby.com (8.12.7/8.12.7/Submit) with ESMTP id h1M3qIo5002131; Fri, 21 Feb 2003 21:52:19 -0600 (CST) X-Authentication-Warning: odysseus.silby.com: silby owned process doing -bs Date: Fri, 21 Feb 2003 21:52:17 -0600 (CST) From: Mike Silbersack To: =?iso-8859-1?Q?Sten_Daniel_S=F8rsdal?= Cc: net@freebsd.org Subject: Re: TOS or TCP Flags - make a difference? In-Reply-To: <0AF1BBDF1218F14E9B4CCE414744E70F1F3BE6@exchange.wanglobal.net> Message-ID: <20030221215003.O2121@odysseus.silby.com> References: <0AF1BBDF1218F14E9B4CCE414744E70F1F3BE6@exchange.wanglobal.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Wed, 19 Feb 2003, [iso-8859-1] Sten Daniel S=F8rsdal wrote: > Does FreeBSD prioritize traffic based on TOS and or TCP Flags? > > It could be my imagination but it looks like PSH flagged tcp > packets go faster through the network than non-PSH flagged. > We have other routers also (Cisco and Nortel) so it might be them. > > -- Sten FreeBSD has no traffic prioritizing built in by default. Note that PSH flags are always ACK'd immediately, whereas non-PSH flags are subject to delayed ACKs. Are you perhaps measuring the occurance of that? Mike "Silby" Silbersack To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message