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提出一种基于保护资源的混合光交换方案P_HyLABS。该方案利用光电路交换(OCS)网络中的保护资源(波长信道),构建光突发交换(OBS)网络层,与OCS工作光路组成的OCS网络层一起,组成OCS/OBS混合交换网络。仿真结果表明,由于将OCS传送的电路交换的优势与OBS传送的统计复用能力进行了较好的结合,与单一的OCS网络和OBS网络相比,P_HyLABS混合交换在保证数据高效传输的同时,可应对呈高突发性的数据传送,在多失效的网络环境下也能部分恢复数据传送。
A hybrid optical switching scheme P_HyLABS based on resource protection is proposed. This scheme utilizes the protection resources (wavelength channels) in the optical circuit switched (OCS) network to construct the optical burst switching (OBS) network layer and forms the OCS / OBS hybrid switching network together with the OCS network layer composed of OCS working optical paths. The simulation results show that P_HyLABS hybrid switching ensures efficient data transmission compared with single OCS network and OBS network due to the better combination of the advantages of circuit switching transmitted by OCS and the statistical multiplexing capability of OBS transmission. Can respond to the high burst of data transfer, in the multi-failure of the network environment can also partially restore data transfer.