netdev - Re: IPv6: autoconfiguration and suspend/resume or link down/up

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Message-ID: <20110723093743.7c90b78f@nehalam.ftrdhcpuser.net>
Date:	Sat, 23 Jul 2011 09:37:43 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Nicolas de Pesloüan 
	<nicolas.2p.debian@...il.com>, David Miller <davem@...emloft.net>,
	jbohac@...e.cz, netdev@...r.kernel.org
Subject: Re: IPv6: autoconfiguration and suspend/resume or link down/up

On Sat, 23 Jul 2011 23:27:24 +0800
Herbert Xu <herbert@...dor.apana.org.au> wrote:

> On Sat, Jul 23, 2011 at 04:31:21PM +0200, Nicolas de Pesloüan wrote:
> >
> > That being said, the time to renegotiate a network setup sounds very 
> > short, compared to the time for a full suspend-migrate-resume cycle. I'm 
> > not sure VM migration would really suffer from such renegotiation.
> 
> Live migration certainly would suffer from multiple RTTs that
> result from renegotiation.
> 
> Cheers,

Would it be possible to do live migration without dropping carrier
or setting interface down?
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