Research on Detectable and Indicative Forward Active Network Congestion Control Algorithm

In order to solve the shortages of Forward Active network Congestion Control algorithm (FACC), this paper proposes a Detectable and Indicative Forward Active network Congestion Control algorithm (DIFACC). DIFACC uses RED buffer queue management algorithm instead of standard drop tail algorithm to increase the usage of bandwidth. It preserves the active detection and passive indication mechanism to realize load balance. It introduces sending speed adjustment policy, and designs different processing method for different kinds of service data according to their different characteristics and requests on network resources. DIFACC can not only relieve congestion in time when congestion happens, but also can avoid the congestion and increase the QoS of the different kinds of service data. A simulation experiment is given to analyze the performance of the algorithms. With the analysis of performance between FACC and DIFACC, it shows that DIFACC not only resolves some shortages in FACC, but also improves the OoS of different kinds of service data, reduces the package loss rate and decreases the processing delay of packets.