Your company is deploying a private cloud based on OpenStack and has selected Contrail Networking as their SDN controller. Which statement is true in this scenario?
A. All bare-metal servers must run a vSRX instance for overlay tunneling.
B. All virtualized servers must run a vSRX instance for overlay tunneling
C. All bare-metal serer must run a vRouter for overlay tunneling
D. All virtualized servers must run a vRouter for overlay tunneling