From owner-freebsd-current Mon Aug 30 14:23:45 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 46C01158CA for ; Mon, 30 Aug 1999 14:23:32 -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 QAA12588 for ; Mon, 30 Aug 1999 16:21:27 -0500 (CDT) Received: (from jlemon@localhost) by right.PCS (8.8.5/8.6.4) id QAA16105; Mon, 30 Aug 1999 16:21:26 -0500 (CDT) Message-ID: <19990830162125.52517@right.PCS> Date: Mon, 30 Aug 1999 16:21:25 -0500 From: Jonathan Lemon To: current@freebsd.org Subject: HEADS UP Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.61.1 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG 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: 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. net.inet.tcp.msl: 3000 Specifies the "Maximum Segment Lifetime", 30sec. -- Jonathan To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message