4.2.1 Device to Device Session

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This scenario involves two client devices with an established SSTP connection (1) where client A is to send a message to client B. To begin, client A sends an Open command to client B, addressing the Open to an address entry of URLs on B’s device: B’s identity URL (client B), resource handler URL (apphandler), and device URL (device2). When client B responds with an OpenResponse, client A sends a data message to client B in several Data commands. Upon receipt of a Noop command from client B, client A returns a Close command to close the session. This illustrates the basic exchanges involved in opening a session and performing data transfer from one device to another.

SSTP session between client devices

Figure 14: SSTP session between client devices