Wendy Heffner
				      TR-95-022
				      May 1995

                Scalability is a critical metric when evaluating the
                design of any distributed system. In this paper we
                examine Suite 2 of the Tenet Network Protocols, which
                supports real-time guarantees for multi-party
                communication over packet switched networks. In
                particular, we evaluate the scalability of both the
                system design and the prototype implementation of the
                signaling protocol, RCAP2.  The scalability of the
                design is analyzed on several levels. It is analyzed
                with regard to its support for large internetworks,
                many multi-party connections, and a large number of
                receivers in a single connection. In addition, the
                prototype implementation is examined to see where
                decisions have been made that reduce the scalability
                of the initial system design. We propose
                implementation alternatives that are more
                scalable. Finally, we evaluate the scalability of
                system design in compar ison to those of the ST-II 
                signaling protocol (SCMP) and of RSVP.


                Keywords:
                scaling, multicast connection, multimedia networking, 
                real-time communication, Tenet protocols