From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id E0829198005 for ; Fri, 22 Feb 2013 08:04:49 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id D9BE221C0B8; Fri, 22 Feb 2013 08:04:40 +0000 (UTC) Received: from mta-2.ms.rz.rwth-aachen.de (mta-2.ms.rz.rwth-aachen.de [134.130.7.73]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 433CA21C0AC for ; Fri, 22 Feb 2013 08:04:39 +0000 (UTC) Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-disposition: inline Content-type: text/plain; charset=us-ascii; DelSp=Yes; Format=Flowed Received: from mx-out-2.rwth-aachen.de ([134.130.5.187]) by mta-2.ms.rz.RWTH-Aachen.de (Sun Java(tm) System Messaging Server 6.3-7.04 (built Sep 26 2008)) with ESMTP id <0MIM00IJS3RQ6U20@mta-2.ms.rz.RWTH-Aachen.de> for gentoo-user@lists.gentoo.org; Fri, 22 Feb 2013 09:04:38 +0100 (CET) X-IronPort-AV: E=Sophos;i="4.84,714,1355094000"; d="scan'208";a="123571010" Received: from relay-2.ms.rz.rwth-aachen.de (HELO relay.rwth-aachen.de) ([134.130.7.75]) by mx-2.rz.rwth-aachen.de with ESMTP; Fri, 22 Feb 2013 09:04:38 +0100 Received: from numa-i.igpm.rwth-aachen.de (numa-i.igpm.rwth-aachen.de [134.130.161.252]) by relay.rwth-aachen.de (8.14.4+Sun/8.13.8/1) with ESMTP id r1M84bXY015673 for ; Fri, 22 Feb 2013 09:04:37 +0100 (CET) Received: from numa-i (localhost [127.0.0.1]) by numa-i.igpm.rwth-aachen.de (Postfix) with ESMTP id D381E24DA for ; Fri, 22 Feb 2013 09:04:38 +0100 (CET) Date: Fri, 22 Feb 2013 09:04:38 +0100 From: Helmut Jarausch Subject: [gentoo-user] Slow local network - how to debug? To: gentoo-user@lists.gentoo.org X-Mailer: Balsa 2.4.91-7-g3440dfb Message-id: <1361520278.18741.0@numa-i> X-Archives-Salt: a34a03b7-9cc5-4663-8f19-da5b3ce755b6 X-Archives-Hash: e15ac018b160ec7e58d58c7b75723dce Hi, I have no experiences in debugging a slow network. At home, I have a router which is connected to my telephone line via VDSL2. I have 2 PCs one of which is connected by an ethernet cable (i.e. wired) while the other one uses a wireless connection which is specified as 56 Mbit/s. When copying data from one machine to the other one I see varying speeds from only 0.5 Mbits/s up to more than 20 Mbits/s. I have no idea why it is so slow some times. There are no other wireless devices nearby. What tools and techniques can I use to debug this situation? Many thanks for a hint, Helmut.