From owner-freebsd-net Sat Jul 22 7: 4:17 2000 Delivered-To: freebsd-net@freebsd.org Received: from mail.bezeqint.net (mail-a.bezeqint.net [192.115.106.23]) by hub.freebsd.org (Postfix) with ESMTP id 0B88637B97B for ; Sat, 22 Jul 2000 07:04:14 -0700 (PDT) (envelope-from nimrodm@bezeqint.net) Received: from bsd.net.il ([212.179.182.125]) by mail.bezeqint.net (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with ESMTP id <0FY300FOXR0Q3Q@mail.bezeqint.net> for freebsd-net@FreeBSD.org; Sat, 22 Jul 2000 17:02:55 +0300 (IDT) Received: (from nimrodm@localhost) by bsd.net.il (8.9.3/8.9.3) id QAA01168 for freebsd-net@FreeBSD.org; Sat, 22 Jul 2000 16:59:29 +0300 (IDT envelope-from nimrodm) Date: Sat, 22 Jul 2000 16:59:29 +0300 From: Nimrod Mesika Subject: rfc1323 timestamps To: freebsd-net@FreeBSD.org Reply-To: nimrodm@email.com Message-id: <20000722165929.A1060@localhost.bsd.net.il> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-disposition: inline Mail-Followup-To: freebsd-net@FreeBSD.org User-Agent: Mutt/1.2i Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org The following behavior has been observed while talking to a Linux machine (timestamps enabled, tcpdump output modified for easier reading): 21.66 bsd > linux: ack 1 win 17376 ^ ts1 sent by bsd 22.05 linux > bsd: 1:1449(1448) ack 1 win 32120 ^ts1 echoed by linux 22.14 bsd > linux: ack 1449 win 17376 ^ ts2 sent by bsd 22.23 linux > bsd: 1449:2897(1448) ack 1 win 32120 ^ ts1 echoed by linux AGAIN ... For each ack+timestamp sent by FreeBSD, Linux sends two data packets (i.e., slow start) - both echoing back the same timestamp. 1. Is this standard behavior? 2. Will FreeBSD behave in the same way? (couldn't test as most BSD machines have rfc1323 timestamps turned off). -- Nimrod. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message