Comment 3 for bug 1503480

The template is used to force vm to be unreachable, so that once monitoring starts (using ping), and vm is unreachable (because of sudo ifdown eth0 command in template), as per behavior tacker is suppose to declare vnf to DEAD state and restart.
This was the aim of testcase to verify vnf state from ACTIVE-->DEAD-->ACTIVE. This verifies someone is doing ping and when vnf is not reachable it is restarting it.