Performance analysis of fuzzy thresholding-based buffer management for a large-scale cell-switching network

This paper addresses three key issues in buffer management in cell switching networks including asynchronous transfer mode (ATM) networks. First, it develops a model of fuzzy thresholding-based buffer management for a 50-switch representative cell-switching network, to study its performance under realistic conditions. Second, it presents an approach to re-route to their final destinations, the fraction of the selectively blocked cells that correspond to the difference of cell loss due to buffer overflow between the fixed and fuzzy schemes. Third, it reports on the influence of the buffer management scheme on the end-to-end delay performance of a representative cell switching network. The model is simulated on a testbed consisting of a network of 25+ Pentium workstations under Linux, configured as a loosely coupled parallel processor. Simulation results obtained are discussed