Vms failed to get ip ESX vxlan setup due to keyError
Vms failed to get ip ESX vxlan setup due to keyError

Around 50 Vms out of 4k VMs failed to get ip in 500 VMs/SG scenario.
KeyError exception is seen in server RPC logs.

Change-Id: I82aa359a58e5c6db3a5ee40090fcc0ea5dc3640b
Closes-Bug: #1615503

ekosareva/vmware-dvs,Mirantis/vmware-dvs,openstack/networking-vsphere,stackforge/networking-vsphere,stackforge/networking-vsphere,Mirantis/vmware-dvs,openstack/networking-vsphere,ekosareva/vmware-dvs