From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51395) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dFmKh-0007QM-Sc for qemu-devel@nongnu.org; Tue, 30 May 2017 14:57:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dFmKb-00011f-UD for qemu-devel@nongnu.org; Tue, 30 May 2017 14:57:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49050) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dFmKb-00011a-O6 for qemu-devel@nongnu.org; Tue, 30 May 2017 14:57:25 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9F8DF3DBD4 for ; Tue, 30 May 2017 18:57:24 +0000 (UTC) Date: Tue, 30 May 2017 19:57:13 +0100 From: "Dr. David Alan Gilbert" Message-ID: <20170530185713.GT2120@work-vm> References: <1495649128-10529-1-git-send-email-vyasevic@redhat.com> <1495649128-10529-2-git-send-email-vyasevic@redhat.com> <2687d5d9-9771-97dc-5a32-ac78006472f1@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <2687d5d9-9771-97dc-5a32-ac78006472f1@redhat.com> Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH 01/12] migration: Introduce announce parameters List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Vlad Yasevich Cc: Jason Wang , qemu-devel@nongnu.org, quintela@redhat.com, germano@redhat.com, lvivier@redhat.com, jdenemar@redhat.com, kashyap@redhat.com, armbru@redhat.com, mst@redhat.com * Vlad Yasevich (vyasevic@redhat.com) wrote: > On 05/26/2017 12:03 AM, Jason Wang wrote: > >=20 > > On 2017=E5=B9=B405=E6=9C=8825=E6=97=A5 02:05, Vladislav Yasevich wrot= e: > >> Add parameters that control RARP/GARP announcement timeouts. > >> The parameters structure is added to the QAPI and a qmp command > >> is added to set/get the parameter data. > >> > >> Based on work by "Dr. David Alan Gilbert" > >> > >> Signed-off-by: Vladislav Yasevich > >=20 > > I think it's better to explain e.g under which condition do we need t= o tweak such parameters. > >=20 > > Thanks > >=20 >=20 > OK. I'll rip off what dgilbert wrote in his original series for the de= scription. >=20 > Dave, if you have any text to add as to why migration might need to twe= ak this, I'd > appreciate it. Pretty much what I originally said; that the existing values are arbitrary and fixed, and for systems with complex/sluggish network reconfiguration systems they can be too slow. Dave > Thanks > -vlad -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK