From owner-freebsd-questions Thu May 20 3:16:53 1999 Delivered-To: freebsd-questions@freebsd.org Received: from uumail-relay-blr.ernet.in (uumail-relay-blr.ernet.in [202.141.1.17]) by hub.freebsd.org (Postfix) with ESMTP id CC8C314FBD for ; Thu, 20 May 1999 03:16:35 -0700 (PDT) (envelope-from huitsang@bandman.nm.ece.iisc.ernet.in) Received: from iisc.ernet.in (iisc.ernet.in [144.16.64.3]) by uumail-relay-blr.ernet.in (8.9.0/8.9.0) with ESMTP id PAA00475 for ; Thu, 20 May 1999 15:45:04 +0530 Received: from ece.iisc.ernet.in by iisc.ernet.in (ERNET-IISc/SMI-4.1) id PAA19765; Thu, 20 May 1999 15:45:33 +0530 (GMT+0530) Received: from lists.ece.iisc.ernet.in (cam.nm.ece.iisc.ernet.in) by ece.iisc.ernet.in (4.1/SMI-4.1) id AA03824; Thu, 20 May 99 15:45:05+0530 Received: (from huitsang@localhost) by lists.ece.iisc.ernet.in (8.8.7/8.8.7) id PAA02605; Thu, 20 May 1999 15:30:09 +0530 Message-Id: <19990520153009.A2590@nm.ece.iisc.ernet.in> Date: Thu, 20 May 1999 15:30:09 +0530 From: Hui Tsang To: freebsd-questions@freebsd.org Subject: SACK: Current Support in FreeBSD 3.0? Reply-To: freebsd-questions@bandman.nm.ece.iisc.ernet.in Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.93.2i Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG All: Does FreeBSD-stable (3.1) support SACK. If not, will it be available in future releases? There is no sysctl.net.tcp.sack parameter. Searching on the mailing list archives indicate that experimental patches were available in 1996. Another person found some experiment options in the kernel. Since we would like to start using SACK only if it is supported in a stable release. I use "3.1-RELEASE FreeBSD 3.1-RELEASE #0: Mon Feb 15 11:08:08 GMT 1999 jkh@usw3.freebsd.org:/usr/src/sys/compile/GENERIC i386" Searching the Handbook and the Web Site did not yield any results. Please let me know. Thanks. Hui -- 19980405.freebsd-questions Date: Sun, 12 Apr 1998 01:34:22 -0500 From: Dan Nelson Subject: Re: Status of RFC 2018/SACK support? Message-ID: <19980412013422.A7152@emsphone.com> In the last episode (Apr 11), Studded said: > I am doing some research on RFC 2018 (Selective ACK) support, and I'm > curious where FBSD stands on it. There are only a few references in > the archives that it exists, no mention of whether we support it or > not. Luigi Rizzo has SACK/TSACK patches for 2.1.6 at It looks like there is/was another implementation of SACK onto 2.1.6; http://irl.cs.ucla.edu/sack.html says that part of its testbed was 2.1.6 machines. 19990124.freebsd-hackers Date: Wed, 27 Jan 1999 10:08:11 -0600 From: Chris Costello To: Mittal Monani Subject: Re: Newbie questions : please help Message-ID: <19990127100811.A74511@holly.dyndns.org> > >>--RFC 2018 > Selective Acknowledgement (SACK) /usr/src/sys/netinet/tcp.h contains an option TCPOPT_SACK, and it says it's experimental. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message