Performance comparison of baranch point algorithms for multicast abr flow control

摘要

This paper compares the performance of feedback consolidation algorithms with/without a fast overload indication function at a branch point switch formulticast (or point-to-multipoint) available bit rate (ABR) flow control in ATM networks. A new backward resource management (BRM) cell-discarding policy is proposed which controls additional BRM cell overhead due to fast overload indication function. The performance of various consolidation algorithms with the proposed fast overload indication function is also compared using simulations. The simulation results show that a fast overload indication function is very effective in a severe overload situation, particularly in an initial period with a higher initial cell rate. The fast overload indication function can be also combined with any feedback consolidation algorithm. However, its performance is highly dependent on the underlying basic consolidation algorithm employed.