ABSTRACT
This chapter shows that Adaptive congestion control framework (NNRC) satisfies the aforementioned properties to a very good extent, outperforming FAST Transmission control protocol (TCP), which is the dominant protocol against all others reported in the relevant literature. It investigates the scalability of NNRC and FAST TCP protocols with respect to variations in maximum link buffer capacity, propagation delays and link bandwidths. Both NNRC and FAST TCP have been implemented and their performance is tested on a number of realistic simulation scenarios, utilizing the network configuration. The performance of NNRC and FAST TCP is studied in the presence of abrupt variations of the available bandwidth. The chapter considers the multi-bottleneck link network and examines their performance in sudden changes of the available bandwidth and propagation delays. Owing to link failures, insufficient link available bandwidth, a packet may be forced to change its preassigned path to destination. Such a phenomenon, called re-routing, causes abrupt propagation delay variations with effect on performance.
