Re: [Xen-users] Bonding – dom0 or dom1 ? and why is vif1.1 missing in DomU?

["Jerry Amundson" <jamundso@xxxxxxxxx>]

I haven't looked closely at your questions yet, but I did happen
across this nice little Xen/bonding how-to from Dell. Might guide you
further.

jerry

On 3/9/07, Ian Brown <ianbrn@xxxxxxxxx> wrote:
> Hello Xen users,
>
> I have a machine with two different nics (sis900 and dmfe).
> I am trying bonding in Xen. (on FC6, intel x386, para virtualization).
>
> In the past  I did successfully configured and used bonding on non-Xen
> Linux machines.
>
> I saw some posts in this list and in other sites regarding Xen
> bonding, but I am a little bewildered
> so I want to verify something:
>
> I am using the default /etc/xen/xend-config.sxp config file, which
> means I am using
> bridging (ifconfig can show xenbr0).
>
> When booting into domain 0 both nics are recognized (as I can see from dmesg),
> also "ifconfig -a" from  dom0 shows eth0 and eth1.
>
>
> Now when I boot into domain U , "ifconfig -a" shows only eth0.
> /etc/modprobe.conf has a line saying "alias eth0 xennet" (but eth1
> does not appear in /etc/modprobe.conf).
>
>
> Now I have two questions:
> 1)I want to configure bonding through the initscripts
> (namely , create /etc/sysconfig/network-scripts/ifcfg-bond0 and add MASTER/SLAVE
>  entries in /etc/sysconfig/network-scripts/ifcfg-eth0 and
> /etc/sysconfig/network-scripts/ifcfg-eth1 ,
> etc.) Where should I do it ? In dom 0 ? or in dom U ? I saw somewhere
> in xen-user mailing list that it should be done in dom U ; but as I
> said, ifconfig -a does not show eth1 in dom U .
> Any tips or guidance as to what should I do or pointers to bonding on
> Xen that worked for you will be helpful.
>
> 2)
>  After boot of domain U , I ran ifconfig -a ***in domain 0***, and I
> saw only ONE vif1.* instance (vif1.0) I expected to see also vif1.1
> for the second nic.
> The XenNetworking wiki page says : "If you create multiple network
> interfaces for a domU, it's ends will be eth0, eth1, etc, whereas the
> dom0 end will be vif<id#>.0, vif<id#>.1, etc."
> (http://wiki.xensource.com/xenwiki/XenNetworking). Did I misunderstood
> something ?
> Am I wrong somewhere?
>
> Regards,
> Ian
>
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"Oh joy! Rapture! I've got a brain"
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