Setting up an OVSDB connection to a controller
The OVSDB server supports the following types of OVSDB connections:
Active SSL connection—The OVSDB server initiates an SSL connection to the controller.
Passive SSL connection—The OVSDB server accepts the SSL connection from the controller.
Active TCP connection—The OVSDB server initiates a TCP connection to the controller.
Passive TCP connection—The OVSDB server accepts the TCP connection from the controller.