[ovs-discuss] Question about setting Open vSwitch on top of CentOS with XEN support

[Ben Pfaff]

On Sun, Jul 10, 2011 at 02:26:01AM +0800, 沒 wrote:
> * first question *
> if I want to make Domain-0 link to be connected, which port should I attach
> to the virtual bridge... eth0? or peth0?

I don't understand this question.  You have one Ethernet port.  Attach
that one to vbr0.  Where does the other one come from?

> * second question *
> do I need to attach "vif0.0" to the virtual bridge "vbr0"? (vif0.0 ->
> interface of Domain0's eth0)
> or there is no need to do so, just attach eth0 / peth0?

If you want packets from vif0.0 to be able to reach eth0, and vice
versa, then attach both of them to the same bridge.

> * third question *
> how can I attach "vif1.0" to "vbr0" before Domain-1 is been created?

Normally you would attach vif1.0 to vbr0 after Domain-1 is created.

> * forth question *
> with KVM support, INSTALL.KVM says that need to add scripts ovs-ifup /
> ovs-ifdown,
> then, with XEN support system, do we need to write scripts for ifup / ifdown
> commands?

Yes, you need to make the corresponding changes to Xen.