[CentOS-virt] Virtual NICs on a Xen VM

Pasi Kärkkäinen pasik at iki.fi
Sun Jul 8 13:07:21 EDT 2012


On Sat, Jun 30, 2012 at 07:33:32PM +0530, Arun Khan wrote:
> On Fri, Jun 29, 2012 at 1:49 AM, Dmitry E. Mikhailov
> <d.mikhailov at infocommunications.ru> wrote:
> > On Thursday 28 June 2012 20:22, Steve Campbell wrote:
> >> So what I'm asking  is "Is it possible to create a xen VM that has two
> >> virtual ethernet interfaces on a host that has only one real NIC"?
> >
> > IMHO you can create an empty* bridge interface on a virtualization host.
> >
> > *By 'empty' I mean no IP address and no real interfaces bridged.
> 
> +1 This is the way I am configuring bridges and taps for my virtual network.
> 

Yep, creating an "empty" bridge with no physical ethernet interfaces as uplinks 
is normal and straight forward.

Each vif (vnic) of the Xen VM is attached to a bridge. And it doesn't matter if 
it's a bridge with or without uplinks.

-- Pasi



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