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xen-users
Re: [Xen-users] xend-config.sxp setting question & vlans
On Tue, Mar 09, 2010 at 10:07:36AM -0500, Mike Viau wrote:
> > Date: Tue, 9 Mar 2010 12:13:08 +0700
> > Subject: Re: [Xen-users] xend-config.sxp setting question & vlans
> > From: fajar@xxxxxxxxx
> > To: viaum@xxxxxxxxxxxxxxx
> > CC: xen-users@xxxxxxxxxxxxxxxxxxx
> >
> > On Mon, Mar 8, 2010 at 11:49 PM, Mike Viau <viaum@xxxxxxxxxxxxxxx>
> wrote:
> > > Hello,
> > >
> > > I have a question for the xenners using 1st method of having VMs using
> VLAN
> > > interfaces with XEN. [http://wiki.xensource.com/xenwiki/XenNetworking]
> > >
> > > I've setup my /etc/network/interfaces file with bridge enteries like
> in the
> > > example:
> > >
> > > iface xen-br293 inet manual
> > > up vconfig add eth0 293
> > > up /etc/xen/scripts/network start netdev=eth0.293 bridge=xen-br293
> > > antispoof=no
> >
> > Why?
> >
> > IMHO you should use only one, not both. So either:
> > - have xen's networking script create the bridges, or
> > - create the bridges manually, and comment-out xen's networking script
> > on xend-config.sxp. This is what I prefer to use on complex setup.
> >
>
> I am comfortable with creating the bridges manually and commenting-out
> xen's networking script on xend-config.sxp as Pasi pointed out in another
> thread.
>
> Could someone provide a working example of debian /etc/network/interface
> file where a vlan is bridged for use with xen DomUs?
>
> To be honest, I don't think the 1st method of having VMs using VLAN
> interfaces with XEN works with with my Debain Lenny (and possibly other)
> setup. I was just trying to follow the wiki as it was written.
>
> However I quickly discovered that the above iface xen-br293 inet manual
> entry does not work, because when one tries to bring up xen-br293 one
> gets:
>
> xen-br293: ERROR while getting interface flags: No such device
>
> I believe this may be do to the fact that the xen-br# devices are not
> known by the udev system and thus the iface entries are just ignored.
> Regardless I think the wiki should demonstrate how to use xen's networking
> script create the bridges, or how to create the bridges manually (in
> /etc/network/interface or other method(s)) while comment-out xen's
> networking script on xend-config.sxp like Fajar suggested.
>
Creating the bridges using distro network scripts is obviously distro specific
task.
I can't remember how to do that in debian /etc/network/interfaces.
In rhel/centos/fedora I do them like this:
/etc/sysconfig/network-scripts/ifcfg-brvlanXY
DEVICE=brvlanXY
BOOTPROTO=none
ONBOOT=yes
TYPE=Bridge
and then it's just a matter of 'ifup brvlanXY'.
In the /etc/xen/<guest> configuration file remember
to specify "bridge=brvlanXY" for the vif.
Someone feel free to edit the wiki :)
-- Pasi
> > --
> > Fajar
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
>
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>
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> References
>
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