To enable X applications running on virtual nodes we create

To enable X applications running on virtual nodes we create
a pair of virtual ethernet interfaces (with shell script
startopera), one in "default" and the other in virtual node.

If the experiment is terminated while TCP socket (in any virtual node)
is in state TIME_WAIT a system will hang and then reboot.
To prevent virtual node destruction from rebooting the system
a loop checking TIME_WAIT state in all virtual nodes is added
as temporary fix.

Bug found by:
Submitted by:
Reviewed by:
Approved by:
Obtained from: