On 06/03/2015 03:56 PM, Thibaut Collet wrote: > Hi, > > thanks for your point, I did not notice the problem of the lost of ARP > announce by discarding the message. > So I must rewrite my patch to define a queue to transmit the ARP > announce to the guest. Is it the proper solution? >
Please have a look at VIRTIO_NET_F_GUEST_ANNOUNCE. It can notify guest after migration to let it to send arp announce. Recent linux driver has this support. > Thanks. > > Best regards. > > Thibaut. > > On Tue, Jun 2, 2015 at 12:34 PM, Stefan Hajnoczi <stefa...@redhat.com > <mailto:stefa...@redhat.com>> wrote: > > On Fri, May 29, 2015 at 04:28:48PM +0200, Thibaut Collet wrote: > > I agree that virtio-net NIC never enqueues packet to vhost-user > > but qemu_announce_self function (savevm.c file) can do it through > > the qemu_announce_self_iter / qemu_send_packet_raw sequence. > > Does vhost-user support live migration? > > If no, then qemu_announce_self is never called. > > If yes, then the packet should not be discarded since the ARP announce > has a purpose. > > Stefan > >
