Preliminary measurement of the RMTP/RTIP

Abstract

The Real-time Message Transport Protocol (RMTP) and the Real-Time Internetwork Protocol (RTIP) are the transport and network layer data delivery protocols in the Tenet Protocol Suite. We implemented the protocols in Ultrix on the DECstation 5000 workstations and in HP/UX on the HP 9000/7000 workstations. A preliminary measurement study has been conducted to evaluate the performance of the prototype implementation. Some of the results are: the throughput obtained by using RMTP/RTIP is comparable to that obtained by using raw IP; the rate control mechanism in RMTP/RTIP effectively enforces the traffic specification of communication clients; the scheduling mechanism in RTIP protects the real-time channel so that the performance of a real-time channel is not affected by the presence of IP traffic or other real-time channels in the network.