Distributed traffic control method for Tbit/s multi-stage ATM switching systems

This paper proposes a distributed traffic control method for large multi-stage ATM switching systems. In the proposed switching system, each port of the basic switches has its own traffic monitor, and each line unit (LU) periodically obtains congestion information about available paths from OAM cells in order to route a new virtual circuit independently. The performance of the proposed system depends on the interval between OAM cells. We show how an appropriate interval can be determined in order to maximize the number of user cells that each LU can send.