From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: networking problems between vms Date: Mon, 07 Feb 2011 12:41:55 +0200 Message-ID: <4D4FCC73.1030104@redhat.com> References: <4D4FC0BD.9050801@vcordes.info> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Volker Cordes Return-path: Received: from mx1.redhat.com ([209.132.183.28]:51702 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751120Ab1BGKmF (ORCPT ); Mon, 7 Feb 2011 05:42:05 -0500 In-Reply-To: <4D4FC0BD.9050801@vcordes.info> Sender: kvm-owner@vger.kernel.org List-ID: On 02/07/2011 11:51 AM, Volker Cordes wrote: > Hello, > > I'm running 4 virtual machines on one host, connected by a network > bridge on the host (IP 192.168.0.1). All TAP devices get added to that > bridge when starting the vm: > > brctl show > bridge name bridge id STP enabled interfaces > br0 8000.52fd3fbd954e no tap01 > tap02 > tap03 > tap04 > > I use virtio networking (but tried the e1000 driver, too). The vms have > static IPs 192.168.0.250 - 253 with 192.168.0.1 as the gateway. > Connecting from the host to the machines and from the machines to the > internet works just fine. The problem lies in connecting from one > machine to another. There is a 30 seconds delay until the connection > gets established, I tried ssh, http and mysql. After the connection is > there, the speed seems to be normal. > > Any hints would be appreciated. > Does brctl setfd br0 0.5 help? -- error compiling committee.c: too many arguments to function