Finally, VMware quietly released the much anticipated patch that's been plaguing our DvSwitch environment.
Check out the release notes here: http://www.vmware.com/support/vsphere4/doc/vsp_vc40_u2_rel_notes.html
This bug thats been plaguing us is highlighted here:
Virtual machines connected to a vNetwork Distributed Switch (vDS) are disconnected after a failovervDS virtual machine port changes persist the port configuration every five minutes. Since virtual machine port changes are not persisted immediately, virtual machines might lose network connectivity after a failover event if they have been configured to link to a vDS less than five minutes before the failover.
This issue is resolved in this release.
Back to the drawing board to re-test our prospective environment!
