From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:57083) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SCI7L-0007X2-59 for qemu-devel@nongnu.org; Mon, 26 Mar 2012 18:10:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SCI7I-0000BF-RJ for qemu-devel@nongnu.org; Mon, 26 Mar 2012 18:10:22 -0400 Received: from mail-ob0-f173.google.com ([209.85.214.173]:38839) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SCI7I-0000Ah-MR for qemu-devel@nongnu.org; Mon, 26 Mar 2012 18:10:20 -0400 Received: by obbwd20 with SMTP id wd20so6551295obb.4 for ; Mon, 26 Mar 2012 15:10:19 -0700 (PDT) Message-ID: <4F70E947.3090104@codemonkey.ws> Date: Mon, 26 Mar 2012 17:10:15 -0500 From: Anthony Liguori MIME-Version: 1.0 References: <20120316085237.4947.53556.stgit@amd-6168-8-1.englab.nay.redhat.com> In-Reply-To: <20120316085237.4947.53556.stgit@amd-6168-8-1.englab.nay.redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [V5 PATCH 0/4] Send gratuitous packets by guest List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jason Wang Cc: aliguori@us.ibm.com, stefanha@linux.vnet.ibm.com, quintela@redhat.com, rusty@rustcorp.com.au, qemu-devel@nongnu.org, mst@redhat.com, pbonzini@redhat.com On 03/16/2012 03:54 AM, Jason Wang wrote: > This an update of series that let guest and qemu to be co-operated to > send gratuitous packets when needed such as after migration, loadvm > and continuing. > > As it's hard for qemu to track the network configuration in guest such > as bondings, vlans or ipv6. So current gratuitous may not work under > those situations. Can you be more specific about the failure scenarios? Does this mean that migration cannot work today with guests using ipv6? I don't think just pushing this to the guest is an acceptable solution in the short term. Are there scenarios we cannot handle no matter what in the host? Does this mean that for emulated drivers, we're completely out of luck? Regards, Anthony Liguori