OBS边缘节点中变长数据包突发汇聚实现  

Variable Data Packets Assembling in OBS Edge Nodes

作　　者：李扬[1] 胡钢[1] 戴睿[1] 

机构地区：[1]电子科技大学宽带光纤传输与通信网技术教育部重点实验室,成都610054

出　　处：《电子科技大学学报》2004年第6期734-737,共4页Journal of University of Electronic Science and Technology of China

基　　金：国家863计划资助项目(2002AA122021)

摘　　要：基于光突发交换边缘节点在组装数据包前要采用交换阵对其进行突发汇聚,描述了交换阵常用的串行输入轮循算法,根据边缘节点中数据包变长突发汇聚的特点提出了变长串行输入轮循算法,并介绍了其在现场可编程门阵列上的实现。最后比较了两种算法在现场可编程门阵列上实现的资源占用与工作频率。Crossbar is used to classify data packets in optical burst switching (OBS) edge nodes. This paper introduces input serial polling (ISP) algorithm, which is usually adopted in crossbar. An algorithm, named variable input serial polling (VISP), is proposed to support variable length data packets assembling. The details of the implementation of VISP algorithm in field programmable gate array (FPGA) is presented. Resource occupation and working frequency are compared between ISP and VISP.

关 键 词：光突发交换 交换阵 调度器 变长串行输入轮循算法 

分 类 号：TN929.11[电子电信—通信与信息系统]