Performance analysis of fast reservation protocols in ATM networks

In Asynchronous Transfer Mode (ATM) networks, VP/VC establishment and bandwidth reservation can be separately performed. Fast Reservation Protocol (FRP), a recently proposed protocol, utilizes this unique feature of the ATM technology to accomplish an efficient use of bandwidth. In FRP, a protocol data unit is called a burst, and a source requests the bandwidth reservation for each burst transmission on the established connection. In this paper, we provide an exact analysis for a class of FRP to obtain the burst delay distribution. Another feature of ATM is that the transmission rate can be set freely if it is admitted by the network. In our modeling, this feature is also incorporated in such a way that the requested bandwidth is reduced if the first attempt to reserve bandwidth is rejected by the network. Through numerical examples, appropriate values of control parameters such as the requested transmission rates are examined to show an effectiveness of FRP. The influences of the propagation delay and overhead due to control cells are also investigated by introducing an approximate technique.