Comparative Study on Delay and Throughput for Weighted Fair Queuing and Priority Queuing
Swarnalatha Mannar Mannan, Anoop Vuppala, Shiva Chaitnaya Nallapati · 2011
Today’s modern world is very much dependent on IP (Internet Protocol) Network services. Queuing is one of the vital mechanisms in traffic management systems. As a part of resource allocation mechanism each router in the network must implement some queuing techniques that govern the packets transmission while waiting in the queue. The (Weighted Fair Queuing (WFQ), Priority Queuing (PQ) and Fair Queuing (FQ) are most prominent techniques implemented in the router. This paper gives a comparative analysis of WFQ and Priority Queuing for different Types of Services (ToS). A study has been carried out on end to end delay and throughput by using OPNET simulator. The simulation result shows that WFQ technique has low delay and maximum throughput than PQ. This shows WFQ provides better performance than the priority queuing in IP networks.