CentOS virt - May 2010 - Simulate Network Cable Disconnect

Hello All,

I am having trouble simulating a network cable disconnect with KVM. I
would like to test active backup bonding for a switch IOS upgrade in a
production environment.

Basically I have the VM running on a bridged network which is also tied
into GNS3 simulating a small-scale version of the production
environment.

I have tried bringing down the vnetX interface and the actual virtual
network itself (virbrX) with no luck.

Has anyone had to do this before/maybe knows some tips?

If more info is required about my setup, I can give it.

Thanks!
Tait

On Tue, 2010-05-04 at 12:28 -0400, Tait Clarridge wrote:
> I am having trouble simulating a network cable disconnect with KVM. I
> would like to test active backup bonding for a switch IOS upgrade in a
> production environment.
Couldn't you just do a "ifdown ethX" in the KVM itself?  One of
the
bonded NICs will go down, and the kernel should report it as such.

Regards,

Ranbir