International Journal of Applied Science and Engineering Research

The switching policy offered by Optical Burst Switching (OBS) in optical network is better than Optical Circuit Switching (OCS) as well as Optical Packet Switching (OPS). However, reviewing the existing system on OBS network is found with few works towards evolving up with a technique to perform a cost effective routing to avoid congestion. Therefore, in order to overcome this issue, we presents a novel protocol called as DCDM i.e. Dual Constraint based Detouring Mechanism by considering both neighbor nodes and traffic load constraints on all the optical nodes in OBS network. The paper introduces two algorithms that uses shortest path algorithm to detour the data packets to less congested traffic when it identifies high congestion traffic. The prime agenda of DCDM is to perform an effective autonomous routing decision by the routers in OBS network for minimizing the burst probability loss.