Clos-Knockout: A Large-Scale Modular Multicast ATM Switch

摘要

A large-scale modular multicast ATM switch based on a three-stage Clos network architecture is proposed and its performance is studied in this paper. The complexity of our proposed switch is N/N if the switch size in N × N. The first stage of the proposed multicast switch consists of n sorting mod- ules, where n = /N. Each sorting module has n inputs and n outputs and is responsible for traffic distribution. The second and third stages consist of modified Knockout switches which are responsible for packet replication and switching. Although it is a multipath network, cell sequence is preserved because only out- put buffers are used in this architecture.