Abstract: A novel strategy for OBS network called Partition-based Resource Reservation and Routing Strategy is proposed. The proposed strategy partitions the OBS core network into multiple regions, and different resource reservation and routing protocols are performed in intra-region and inter-region. The proposed strategy takes the advantages of two different routing schemes. Simulations show that the proposed strategy has improved the overall network throughput and reduced the average blocking probability thus reduces the retransmission delay. The node processing time of the proposed strategy is lower than hop by hop routing scheme and the burst block probability is lower than fixes path routing scheme.

Key words: Optical Burst Switching, partition, routing