XNS-X.25 communications gateway

An integrated protocol architecture has been presented that maps two independent standard sets of protocols providing the aggregate capabilities of both and allowing for other functionalities without modifying the off-the-shelf protocols of the lower transport and levels. The protocol architecture is suitable for communications between devices attached to Ethernet networks, and devices accessing X.25-packet switching networks. The full set of the session protocol is implemented in the XNS/X.25 Gateway Server; a subset is implemented for the XNS side; but both are compatible and rely on the courier remote call procedures to distribute sessions command, response, and error messages.<>