Re: [Xen-devel] Re: [Xen-users] xen 4.1.1 missing veth0 <--> vif0.0 pairs

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, Sep 09, 2011 at 09:29:22PM -0400, Todd Deshane wrote:
> On Fri, Sep 9, 2011 at 8:32 PM, Shriganesh Shintre
> <shriganeshs@xxxxxxxxx> wrote:
> > Hi,
> >
> > I am using Xen 4.1.1 with Linux 3.0.1 kernel. Previously (Xen 3.4.4 and
> > linux kernel 2.6.18) Xen by default created veth0 <--> vif0.0 pair in dom0.
> > With Xen 4.1.1 these pairs are missing in dom0.
> > Using command 'ip link add type veth' I can create veth0 and veth1 but
> > vif0.0 is still missing in dom0. (When new domU created I can see vif1.x
> > created)
> > Could you please help me with understanding following things
> > 1) Is veth is replaced by something? and if yes what is it?
> > 2) How to create veth0 <--> vif0.0 pairs? Or how to create vif0.x
> > interfaces?
> > 3) In which version of Xen these changes regarding veth - vif0.0 are made?
> >
> 
> I'm not sure what you are trying to do exactly, but I would recommend
> taking a look at:
> http://wiki.xensource.com/xenwiki/MigrationGuideToXen4.1%2B
> 
> Guest networking/bridging should now be handled by the distro and not
> with the xend network scripts anymore.
> 

Yep, see the end of:
http://wiki.xen.org/xenwiki/XenBestPractices

which has a link to:
http://wiki.xen.org/xenwiki/HostConfiguration/Networking

veth0 <-> vif0.0 was just a local loopback in dom0,
nothing Xen specific in it really.

You can get the same behaviour by creating, say, dummy0,
and use that.. (if you really want that behaviour).

-- Pasi


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