Balaji,
1. What verison of 1000v are you running
2. What build of vSphere is the host(s).
3. Identify the veth # and VM "name".
Can you paste the following (or capture to a text file and attach to this thread):
-From the VSM - show run
-" " - module vem x execute vemcmd show trunk (where x = VEM module #)
-" " - module vem x execute vemcmd show vlan
-" " - module vem x execute vemcmd show bd y (where x = VEM module #, and y = VLAN of the VM)
-" " - module vem x execute vemcmd show dr y (where x = VEM module #, and y = VLAN of the VM)
**Do the above 4 commands for the "working" and "non working" VEM host while the VM is running on it
Regards,
Robert