Overload throughput performance of different erasure node protocols for DQDB networks

Erasure nodes are special devices that have been conceived to improve the system throughput of distributed queue dual bus (DQDB) networks. The authors discuss the overload performance of a network with erasure nodes and the standard bandwidth balancing (BWB) mechanism enabled, when alternative implementation schemes of the erasure node protocol are considered. A numerical method is presented to calculate the maximum throughput in any node of the network, and the conditions for achieving fairness are discussed. The results obtained through the analytical approach are assessed by simulation.