In-call renegotiation of traffic parameters

An approximate model of an asynchronous transfer mode (ATM) multiplexer is constructed and used to compare the performances of static and dynamic resource allocation schemes. Static allocation parameterizes a source at connection setup only, whereas dynamic allocation requires a source to inform the multiplexer whenever its bandwidth requirements change. A simple dynamic renegotiation protocol is analyzed, and bounds on the performance of an optimal dynamic protocol are derived. Markovian source models parameterized from working applications are used to contrast the behavior of the three control schemes