From owner-freebsd-net Sat Nov 17 8:54:36 2001 Delivered-To: freebsd-net@freebsd.org Received: from hotmail.com (f178.pav2.hotmail.com [64.4.37.178]) by hub.freebsd.org (Postfix) with ESMTP id 23D2037B41B for ; Sat, 17 Nov 2001 08:54:29 -0800 (PST) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sat, 17 Nov 2001 08:54:28 -0800 Received: from 204.178.20.14 by pv2fd.pav2.hotmail.msn.com with HTTP; Sat, 17 Nov 2001 16:54:28 GMT X-Originating-IP: [204.178.20.14] From: "murthy kn" To: net@FreeBSD.ORG Subject: TCP Fast Retransmit Date: Sat, 17 Nov 2001 22:24:28 +0530 Mime-Version: 1.0 Content-Type: text/plain; format=flowed Message-ID: X-OriginalArrivalTime: 17 Nov 2001 16:54:28.0943 (UTC) FILETIME=[85855DF0:01C16F88] Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Hello, 1. Is there any sysctl variable to control the number of duplicate acks after which the sending TCP gets into a fast retransmit mode? 2. If I have a switch that does not support any port aggregation, and it is connected to a BSD machine with 2 ethernet NICs that have identical MAC, will the switch forward *each* packet destined to the BSD machine to both of the NICs. 3. Apart from using tcpdump, are there any other tools/ways to analyze the dynamic behaviour of a BSD stack - like knowing when there have been retransmits, the state of various buffers in the stack etc. Thanks for your time. Murthy _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message