Automatic Traffic Balance Algorithm Based on Traffic Engineering

Routing protocols can decide for data packets which route is reachable and co-optimal, and may cause data packets to swarm into certain links, thus causing congestion on those links. General traffic engineering (GTE) technology provides ER-LSP/CR-LSP in MPLS networks to avoid this kind of congestion. However, GTE takes only the current data flow into account and establishes an ER-LSP/CR-LSP for this current data flow in order to guarantee QoS. Although this could resolve the issue raised by routing protocols, it may also waste some resource. In this article we focus on optimization of traffic engineering and propose an automatic traffic balance algorithm based on GTE technology. Dengyin Zhang received the BS, MS, and PhD degrees from Nanjing University of Posts & Telecommunications, China, in 1986, 1989, and 2004, respectively. He is presently an associate professor at Nanjing University of Posts & Telecommunications. His research interests include computer networks, communication systems, signal and information processing. Zhiyun Tang received the MS degree in computer science and technology from Nanjing University of Posts & Telecommunications, China, in 2005. His research interests include MPLS technology, QoS control and resource management in wired and wireless networks. Ruchuan Wang born in 1943, he is a professor in College of Computer at Nanjing University of Posts and Telecommunications. He advises doctorial graduate students majoring in Computer Software, Computer Network, E-Commence and Network Security and Mobile Agents.