From owner-freebsd-current Mon Aug 30 14:33:58 1999 Delivered-To: freebsd-current@freebsd.org Received: from sumatra.americantv.com (sumatra.americantv.com [208.139.222.227]) by hub.freebsd.org (Postfix) with ESMTP id 1BCB514BCC for ; Mon, 30 Aug 1999 14:33:54 -0700 (PDT) (envelope-from jlemon@americantv.com) Received: from right.PCS (right.PCS [148.105.10.31]) by sumatra.americantv.com (8.8.5/8.8.5) with ESMTP id QAA12649; Mon, 30 Aug 1999 16:32:20 -0500 (CDT) Received: (from jlemon@localhost) by right.PCS (8.8.5/8.6.4) id QAA17846; Mon, 30 Aug 1999 16:32:19 -0500 (CDT) Message-ID: <19990830163219.20716@right.PCS> Date: Mon, 30 Aug 1999 16:32:19 -0500 From: Jonathan Lemon To: "Rodney W. Grimes" Cc: current@FreeBSD.ORG Subject: Re: HEADS UP References: <19990830162125.52517@right.PCS> <199908302127.OAA67008@gndrsh.dnsmgr.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.61.1 In-Reply-To: <199908302127.OAA67008@gndrsh.dnsmgr.net>; from Rodney W. Grimes on Aug 08, 1999 at 02:27:53PM -0700 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Aug 08, 1999 at 02:27:53PM -0700, Rodney W. Grimes wrote: > > I've just committed the revised TCP timer code. There are some > > user visible changes: > > > > User visible TCP timers are now in units of the system clock > > (10ms for the i386), not those of the slowtimeout (500ms). So > > if you have customized one of these values, (e.g.: net.inet.tcp.keepintvl), > > you'll need to multiply it appropriately to keep the same interval. > > > > Also, some new sysctls have been added: > > I didn't think I would ever see this!! Good job, hats off to you and > assoctiates! > > > > > net.inet.tcp.delacktime: 20 > > Specifies the timeout for delayed acks (200ms). > > net.inet.tcp.slowstart_flightsize: 1 > > Specifies how many packets are included in the initial > > slow-start flight. Setting this value to 0 will probably > > result in a non-working system. Choosing a high value > > would be considered antisocial. > > net.inet.tcp.local_slowstart_flightsize: 65535 > > Same as above, but only applies to slowstart on "local" > > networks. Note that the flightsize is constrained by > > the receiver's advertised window size. > > One question though, how is ``local'' defined? The same way as it has been; in_localaddr(). Basically, if the machine is on the same network, (or subnet, depending on the net.inet.ip.subnets_are_local setting). -- Jonathan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message