On the DC network shown in the following figure, a Huawei agile controller is used as the SDN controller to manage the VXLAN service between two CE12808 switches. Which of the following descriptions is incorrect?

A . The agile controller users and SSL-encrypted channel to deliver commands to and receive information from
B . The agile controller centralizes the computation on home computation-intensive protocols to the control plane.
C . The agile controller can use group tables. (A type of openflow flow table) to support additional forwarding behavior (such as select)
D . CE series switches. When serving as openflow agents. Must have the agile controller address configured locally and connect to multiple controllers to increase stability

Answer: A