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xen-devel
Re: [Xen-devel] [RFC PATCH 34/35] Add the Xen virtual network device dri
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To: |
virtualization@xxxxxxxxxxxxxx |
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Subject: |
Re: [Xen-devel] [RFC PATCH 34/35] Add the Xen virtual network device driver. |
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From: |
Andi Kleen <ak@xxxxxxx> |
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Date: |
Tue, 9 May 2006 15:14:28 +0200 |
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Cc: |
xen-devel@xxxxxxxxxxxxxxxxxxx, Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>, netdev@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, chrisw@xxxxxxxxxxxx, ian.pratt@xxxxxxxxxxxxx, Christian Limpach <Christian.Limpach@xxxxxxxxxxxx> |
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Tue, 09 May 2006 06:15:41 -0700 |
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On Tuesday 09 May 2006 15:01, Herbert Xu wrote:
> Christian Limpach <Christian.Limpach@xxxxxxxxxxxx> wrote:
> >
> > There's at least two reasons why having it in the driver is preferable:
> > - synchronizing sending the fake ARP request with when the device is
> > operational -- you really want to make this well synchronized to keep
> > unreachability as short as possible, especially when doing live
> > migration
> > - anybody but the guest might not know (all) the MAC addresses for which
> > to send a fake ARP request
>
> Sure. However, what's there to stop you from doing this in user-space
> inside the guest?
I guess they don't trust user space. But the standard ipup script
from iproute2 does this already so at least for modern distributions
it should just work.
-Andi
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