Hyper-V + Failover Clustering + virtual network adapter failure on one node = ?

Hello all,

I have a question regarding a newly constructed server 2008 (x64) cluster running hyper-v w/ iscsi. I have two poweredge 1950 systems clustered together that have (currently) only one of the NIC ports on each server assigned to a virtual network adapter. Planned failover via simulated failure, cluster failure, and resource moving, all works as designed. However...

Is there a way for the cluster to detect a failed link for a virtual network adapter as an actual cluster failure? For example, if the following is true:

Node A -
physical adapter 1 (bound to virtual network adapter 1) - connected to switch A

Note B - 
physical adapter 1 (bound to virtual network adapter 1) - connected to switch B

I simulated failure by removing the link between node A and switch A. The failure is definitely recognized under the failover cluster management MMC (the virtual network for the two adapters <vnet1> shows adapter 1 on node A as failed). However, no host migration occurs.

Basically, I want the cluster to recognize the failure of the virtual network condition on one node the same way as it views a failure of the cluster service on that node and to migrate all the virtual machines to node B.

Can this be done?