摘要
设计了4端口8波长光突发交换(OBS)网络实验系统,其包括1个核心交换节点、4个边缘节点和密集波分复用(DWDM)传输系统。在传输系统中,突发包(BPs)传输波长信道使用1 550 nm波段,而突发包头(BHPs)传输波长信道采用1310 nm波段。在核心交换节点,交换矩阵由8个4×4光开关组成,并运用光纤延迟线(FDL)解决OBS的拥塞。实验结果表明,该设计是成功的,且FDL能够降低核心节点的丢包率。
An experiment of 4-port and 8-wavelength optical burst switching（OBS） network is designed. The experimental system includes one core switching node, four edge nodes and dense wavelength divide multi plexing（DWDM） transmission systems. In transmission systems, burst packets（BPs） over burst packets optical wavelength channels choose 1 550 nm band, and burst header packet （BHPs） over control optical wavelength channel use 1 310 nm band. At OBS core switching node, a switching matrix is made from eight 4×4 optical switches. At the same time, the fiber delay line（FDL） buffers are applied to the core node to solve the traffic congestion of the OBS network. The experimental results prove that the design is successful, and the FDL can help reduce to the packets-loss-ratio of the core node.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2006年第5期578-581,共4页
Journal of Optoelectronics·Laser
基金
国家"863"重大计划资助项目(2002AA122021)
