From owner-freebsd-net@FreeBSD.ORG Wed Nov 10 09:21:10 2010 Return-Path: Delivered-To: freebsd-net@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BAF9E106566B for ; Wed, 10 Nov 2010 09:21:10 +0000 (UTC) (envelope-from a.huth@tmr.net) Received: from bo-uwka-srv01.de.tmr.net (bo-uwka-srv01.de.tmr.net [212.23.146.2]) by mx1.freebsd.org (Postfix) with ESMTP id 7CB558FC2C for ; Wed, 10 Nov 2010 09:21:10 +0000 (UTC) Received: from localhost (localhost.de.tmr.net [127.0.0.1]) by bo-uwka-srv01.de.tmr.net (Postfix) with ESMTP id 459A61DE82F for ; Wed, 10 Nov 2010 09:51:16 +0100 (CET) Received: from bo-uwka-srv01.de.tmr.net ([127.0.0.1]) by localhost (bo-uwka-srv01.de.tmr.net [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 19951-01-100 for ; Wed, 10 Nov 2010 09:51:16 +0100 (CET) Received: from localhost (bo-stwhv-fw02.de.tmr.net [212.23.140.253]) by bo-uwka-srv01.de.tmr.net (Postfix) with ESMTP id ED4661DE822 for ; Wed, 10 Nov 2010 09:51:15 +0100 (CET) Date: Wed, 10 Nov 2010 10:53:45 +0100 From: Alex Huth To: freebsd-net@FreeBSD.org Message-ID: <20101110095345.GC2222@borusse.ewmr.base> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.20 (2009-06-14) Cc: Subject: Differences in network between 6.4 and 7.3 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Nov 2010 09:21:10 -0000 Hello! After a upgrade from 6.4 to 7.3 it seems that we have problems with the network. On the host are running several webserver and a squid, build with openpkg. I have installed the compat package to be sure that there are no problems with the libraries after the upgrade. Now we have network latency problems, with a wiki and bugzilla running on a DomU (seperate SLES 11 host). Also we get lots of open connection on another DomU where a webcontainer is running. In this case we have unreassembled packages and lots of dup ACK in the traffic. Any idea what to do and where to search for the problem? Thanks in advance Alex