From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiri Pirko Subject: Re: bonding (IEEE 802.3ad) not working with qemu/virtio Date: Thu, 28 Jan 2016 14:33:50 +0100 Message-ID: <20160128133350.GA2231@nanopsycho.orion> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev To: =?iso-8859-1?Q?Bj=F8rnar?= Ness Return-path: Received: from mail-wm0-f68.google.com ([74.125.82.68]:35325 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750880AbcA1Ndx (ORCPT ); Thu, 28 Jan 2016 08:33:53 -0500 Received: by mail-wm0-f68.google.com with SMTP id l66so3772731wml.2 for ; Thu, 28 Jan 2016 05:33:52 -0800 (PST) Content-Disposition: inline In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: Mon, Jan 25, 2016 at 05:24:48PM CET, bjornar.ness@gmail.com wrote: >As subject says, 802.3ad bonding is not working with virtio network model. > >The only errors I see is: > >No 802.3ad response from the link partner for any adapters in the bond. > >Dumping the network traffic shows that no LACP packets are sent from the >host running with virtio driver, changing to for example e1000 solves >this problem >with no configuration changes. > >Is this a known problem? I believe the problem is virtio_net for obvious reasons does not report speed and duplex. Bonding 3ad mode makes that unconfortable :) Use team ;)