From owner-freebsd-doc@FreeBSD.ORG Wed Jan 19 12:50:29 2005 Return-Path: Delivered-To: freebsd-doc@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EDB0B16A4CE for ; Wed, 19 Jan 2005 12:50:29 +0000 (GMT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9D04543D39 for ; Wed, 19 Jan 2005 12:50:29 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.1/8.13.1) with ESMTP id j0JCoTx3008039 for ; Wed, 19 Jan 2005 12:50:29 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.1/8.13.1/Submit) id j0JCoTmj008037; Wed, 19 Jan 2005 12:50:29 GMT (envelope-from gnats) Resent-Date: Wed, 19 Jan 2005 12:50:29 GMT Resent-Message-Id: <200501191250.j0JCoTmj008037@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-doc@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Joel Dahl Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9DF1416A4CE for ; Wed, 19 Jan 2005 12:40:33 +0000 (GMT) Received: from av9-2-sn2.hy.skanova.net (av9-2-sn2.hy.skanova.net [81.228.8.180]) by mx1.FreeBSD.org (Postfix) with ESMTP id 89C3743D58 for ; Wed, 19 Jan 2005 12:40:32 +0000 (GMT) (envelope-from joel@automatvapen.se) Received: by av9-2-sn2.hy.skanova.net (Postfix, from userid 502) id 5A84D37F5F; Wed, 19 Jan 2005 13:40:31 +0100 (CET) Received: from smtp4-2-sn2.hy.skanova.net (smtp4-2-sn2.hy.skanova.net [81.228.8.93]) by av9-2-sn2.hy.skanova.net (Postfix) with ESMTP id 47ABD37E5D for ; Wed, 19 Jan 2005 13:40:31 +0100 (CET) Received: from dude.automatvapen.se (t10o55p32.telia.com [81.225.221.152]) by smtp4-2-sn2.hy.skanova.net (Postfix) with SMTP id 0AF0937E42 for ; Wed, 19 Jan 2005 13:40:29 +0100 (CET) Received: by dude.automatvapen.se (sSMTP sendmail emulation); Wed, 19 Jan 2005 13:40:39 +0100 Message-Id: <20050119124029.0AF0937E42@smtp4-2-sn2.hy.skanova.net> Date: Wed, 19 Jan 2005 13:40:39 +0100 From: "Joel Dahl" To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Subject: docs/76462: [patch] Handbook, net.inet.tcp.inflight_* -> net.inet.tcp.inflight.* X-BeenThere: freebsd-doc@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: Joel Dahl List-Id: Documentation project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Jan 2005 12:50:30 -0000 >Number: 76462 >Category: docs >Synopsis: [patch] Handbook, net.inet.tcp.inflight_* -> net.inet.tcp.inflight.* >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-doc >State: open >Quarter: >Keywords: >Date-Required: >Class: doc-bug >Submitter-Id: current-users >Arrival-Date: Wed Jan 19 12:50:29 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Joel Dahl >Release: FreeBSD 5.3-STABLE i386 >Organization: >Environment: System: FreeBSD dude.automatvapen.se 5.3-STABLE FreeBSD 5.3-STABLE #0: Sat Jan 1 14:36:28 CET 2005 joel@dude.automatvapen.se:/usr/obj/usr/src/sys/WRK i386 >Description: $ sysctl net.inet.tcp.inflight net.inet.tcp.inflight.enable: 1 net.inet.tcp.inflight.debug: 0 net.inet.tcp.inflight.min: 6144 net.inet.tcp.inflight.max: 1073725440 net.inet.tcp.inflight.stab: 20 >How-To-Repeat: >Fix: --- dot.diff begins here --- Index: chapter.sgml =================================================================== RCS file: /home/ncvs/doc/en_US.ISO8859-1/books/handbook/config/chapter.sgml,v retrieving revision 1.198 diff -u -r1.198 chapter.sgml --- chapter.sgml 14 Jan 2005 12:51:52 -0000 1.198 +++ chapter.sgml 19 Jan 2005 12:26:37 -0000 @@ -2171,12 +2171,12 @@ TCP Bandwidth Delay Product Limiting - net.inet.tcp.inflight_enable + net.inet.tcp.inflight.enable The TCP Bandwidth Delay Product Limiting is similar to TCP/Vegas in NetBSD. It can be - enabled by setting net.inet.tcp.inflight_enable + enabled by setting net.inet.tcp.inflight.enable sysctl variable to 1. The system will attempt to calculate the bandwidth delay product for each connection and limit the amount of data queued to the network to just the amount @@ -2187,9 +2187,9 @@ with a high bandwidth delay product), especially if you are also using window scaling or have configured a large send window. If you enable this option, you should also be sure to set - net.inet.tcp.inflight_debug to + net.inet.tcp.inflight.debug to 0 (disable debugging), and for production use - setting net.inet.tcp.inflight_min to at least + setting net.inet.tcp.inflight.min to at least 6144 may be beneficial. However, note that setting high minimums may effectively disable bandwidth limiting depending on the link. The limiting feature reduces the amount of @@ -2202,7 +2202,7 @@ / server side). It has no effect on data reception (downloading). - Adjusting net.inet.tcp.inflight_stab is + Adjusting net.inet.tcp.inflight.stab is not recommended. This parameter defaults to 20, representing 2 maximal packets added to the bandwidth delay product window calculation. The additional window is required to @@ -2211,7 +2211,7 @@ links (though still much lower than you would get without the inflight algorithm). In such cases, you may wish to try reducing this parameter to 15, 10, or 5; and may also have to reduce - net.inet.tcp.inflight_min (for example, to + net.inet.tcp.inflight.min (for example, to 3500) to get the desired effect. Reducing these parameters should be done as a last resort only. --- dot.diff ends here --- >Release-Note: >Audit-Trail: >Unformatted: