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From: Jason Wang <jasowang@redhat.com>
To: Weidong Huang <hwd@huawei.com>
Cc: "chenliang (T)" <chenliang88@huawei.com>,
	"Huangweidong (C)" <weidong.huang@huawei.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] question about patch "send the gratuitous by guest"
Date: Tue, 18 Feb 2014 10:48:45 +0800	[thread overview]
Message-ID: <5302CA0D.7050003@redhat.com> (raw)
In-Reply-To: <52FED89F.4030804@huawei.com>

On 02/15/2014 11:01 AM, Weidong Huang wrote:
> it
> configure vlan or alias on the virtio net.
>
> But bridge or bond do not send arp. what's your opinion?

Do you mean bridge or bond in guest?
>
> BTW,this feature need modify the driver of virtio net.
>
> Only the newest linux kernel support it. So what's about old guest os?
>

It will be hard for the legacy device to know about migration. One
workaround is:

- enable arp_notify
- toggle link status after migration

> Thanks.

  reply	other threads:[~2014-02-18  2:49 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-11  7:43 [Qemu-devel] question about patch "send the gratuitous by guest" Huangweidong (C)
2014-02-11  8:22 ` Jason Wang
2014-02-11  8:45   ` [Qemu-devel] 答复: " Huangweidong (C)
2014-02-15  3:01   ` [Qemu-devel] " Weidong Huang
2014-02-18  2:48     ` Jason Wang [this message]
2014-02-18  4:25       ` Weidong Huang
2014-02-18  5:14         ` Jason Wang

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