From owner-svn-src-all@FreeBSD.ORG Fri Jun 26 19:49:07 2009 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2CE3E1065674; Fri, 26 Jun 2009 19:49:07 +0000 (UTC) (envelope-from oleg@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c]) by mx1.freebsd.org (Postfix) with ESMTP id 1ACF68FC0C; Fri, 26 Jun 2009 19:49:07 +0000 (UTC) (envelope-from oleg@FreeBSD.org) Received: from svn.freebsd.org (localhost [127.0.0.1]) by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id n5QJn6fZ096931; Fri, 26 Jun 2009 19:49:06 GMT (envelope-from oleg@svn.freebsd.org) Received: (from oleg@localhost) by svn.freebsd.org (8.14.3/8.14.3/Submit) id n5QJn6XW096929; Fri, 26 Jun 2009 19:49:06 GMT (envelope-from oleg@svn.freebsd.org) Message-Id: <200906261949.n5QJn6XW096929@svn.freebsd.org> From: Oleg Bulyzhin Date: Fri, 26 Jun 2009 19:49:06 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Subject: svn commit: r195075 - head/sbin/ipfw X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2009 19:49:07 -0000 Author: oleg Date: Fri Jun 26 19:49:06 2009 New Revision: 195075 URL: http://svn.freebsd.org/changeset/base/195075 Log: - 'burst' description rewritten. Submitted by: Ben Kaduk Approved by: re (kib) Modified: head/sbin/ipfw/ipfw.8 Modified: head/sbin/ipfw/ipfw.8 ============================================================================== --- head/sbin/ipfw/ipfw.8 Fri Jun 26 19:39:33 2009 (r195074) +++ head/sbin/ipfw/ipfw.8 Fri Jun 26 19:49:06 2009 (r195075) @@ -1944,13 +1944,18 @@ the granularity to 1ms or less). The default value is 0, meaning no delay. .Pp .It Cm burst Ar size -If the data rate exceeds the pipe bandwith limit -(and pipe was idle long enough), +If the data to be sent exceeds the pipe's bandwidth limit +(and the pipe was previously idle), up to .Ar size -bytes of data is allowed to bypass the +bytes of data are allowed to bypass the .Nm dummynet -scheduler (i.e. it will be sent without shaping), then transmission rate -will not exceed pipe bandwidth. Effective burst size calculated as follows: +scheduler, and will be sent as fast as the physical link allows. +Any additional data will be transmitted at the rate specified +by the +.Nm pipe +bandwidth. +The burst size depends on how long the pipe has been idle; +the effective burst size is calculated as follows: MAX( .Ar size ,