libvirt users - Mar 2012 - simulate "network cable unplugged"

Hi All,

Using the virt-manager/libvirtd/qemu-kvm stack (centos 6), is it 
possible to leave a NIC "installed" but cause it to simulate that the 
network cable is unplugged?  Preferably this could be "hot" 
plugged/unplugged but otherwise doing it cold.

Guest os is also centos 6, in case it matters (shouldn't).

Any pointers?

Thanks,
David Mansfield
Cobite, INC.

On 03/26/2012 11:30 AM, David Mansfield wrote:
> Hi All,
> 
> Using the virt-manager/libvirtd/qemu-kvm stack (centos 6), is it
> possible to leave a NIC "installed" but cause it to simulate that
the
> network cable is unplugged?  Preferably this could be "hot"
> plugged/unplugged but otherwise doing it cold.
Libvirt 0.9.5 added the ability to do <link state='down'/> for
various
networks; I'm not sure if this has been backported to your version of
CentOS, or if you'll have to upgrade to something newer.

For more details on the addition:
https://www.redhat.com/archives/libvir-list/2011-September/msg00294.html

-- 
Eric Blake   eblake at redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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