Improve is_virtualized() fv in NFFG to be more robust
Improve is_virtualized() fv in NFFG to be more robust

hsnlab/escape,5GExchange/escape,hsnlab/escape,5GExchange/escape,5GExchange/escape,5GExchange/escape,5GExchange/escape,hsnlab/escape,hsnlab/escape,hsnlab/escape,hsnlab/escape,5GExchange/escape