H31-611 Web TestEngine demo

Select all that apply.

• A

  After the OpenFlow channel is successfully established, the controller actively queries port information from FPs.

• B

  The controller sends Multipart Request messages to query port information.

• C

  FPs respond with a Multipart Reply message for batch delivery of port information.

• D

  When a port changes, the corresponding FP actively sends a Flow Mod message to report the port change information.