JChannel.Connect()

1. JChannel calls ProtocolStack.Start()

2. Start sends a START event from bottom of the stack upwards

3. UDP initializes its sockets (unicast and multicast). From now on, it is able to receive messages. Then it sends a SET_LOCAL_ADDRESS event up the stack. This allows various layers to cache the local address of the stack. Then it sends a START_OK event up the stack.

4. When ProtocolStack.Start receives the START_OK, it returns. (Note that there is also a timeout, if it expires, ProtocolStack.Start throws an exception)

5. JChannel sends down a CONNECT event, waits for CONNECT_OK

6. Various layers process this event and pass it down

7. GMS passes the event down. Then it establishes the initial membership. Finally it passes up a CONNECT_OK event.

8. JChannel.Connect() waits for CONNECT_OK event, or, it the timeout expires, returns without having received a CONNECT_OK.