摘要
构建了光码标签交换网边缘节点的结构,结合光码分复用技术提出了转发等价类(FEC)分组结构的设计方案。分组结构适合变长数据分组的传输,在核心节点能够实现对标签信息的可并行处理,提高了处理效率。在此基础上,针对开销比对网络传输性能的影响,对FEC结构中的各参量与开销比的关系进行了仿真研究;采用了固定时隙算法对数据分组进行封装,对到达率和封装时延与分组丢失率的关系进行仿真分析。
The structure block of the optical code label switching network was built, and the design scheme for the forwarding equivalent classes （FEC） was proposed employing OCDM technology which was appropriate for variable packets transmission and allow the label processed in parallel in core node. The overhead between the duration of control bits and the duration of payload was investigated based on the above design scheme. The fixed slot algorithm （FSA） was employed to assemble the incoming packets in the assemble queue, simulation results and analysis were given between the relation of arrival ratio/assemble slot and packets loss ratio.
出处
《通信学报》
EI
CSCD
北大核心
2012年第5期72-78,共7页
Journal on Communications
基金
河北省科学技术研究与发展计划基金资助项目(10213576)
河北省自然科学基金资助项目(2011203067)~~
关键词
边缘节点
业务汇聚
封装时隙
转发等价类
开销比
分组丢失率
edge node
traffic aggregation
assemble slot
forwarding equivalent classes
overhead ratio
packet loss ratio
