3.1.5.13 Receiving a LinkMacToViewerPing Message
The client MUST perform the steps in section 3.1.5.2. Also, the client MUST verify that the LinkMacToViewerPing message adheres to the syntax specified in section 2.2.4.1.
The client MUST send a LinkViewerToMacPong (section 2.2.4.22) message.
After sending the LinkViewerToMacPong message, the client MUST wait for a LinkMacToViewerPing message. How to process a LinkMacToViewerPing message is specified in section 3.1.5.13.