虫洞路由芯片的伸缩缓冲区设计与实现  

The Design and Implementation of the Elastic Buffer in Wormhole Routing Chips

作　　者：安学军[1] 祝明发[1] 高文学[1] 吴冬冬[1] 

机构地区：[1]中国科学院计算技术研究所,北京100080

出　　处：《计算机工程与应用》2002年第7期17-19,共3页Computer Engineering and Applications

基　　金：国家863高技术研究发展计划(编号:863-306-ZD01)

摘　　要：虫洞路由交换机制由于延迟时间短,对路由芯片缓冲区容量要求小等特点,被广泛应用在机群交换网络的路由芯片中。但阻塞时占用整个传送路径,会使网络吞吐率下降,此外,刹车问题的存在,会限制数据传送速率。该文提出了用伸缩缓冲区技术解决虫洞路由芯片刹车问题的方法,并已在DawningUX8路由芯片中实现,应用结果表明既可以很好地解决刹车问题,也可以提高网络性能。The wormhole routing switching has been widely used in routing chips of the system area networks for its low latency and little demand on buffer size of the router.However,the network throughput decreases due to the occupation of the whole channel while congested and the data rate is limited low by the brake problem.The elastic buffer applied to the wormhole router is introduced here to solve the brake problem.This method has been implemented in the Dawning UX8routing chips and experimental results show that not only the brake problem is solved but also is the network performance improved.

关 键 词：伸缩缓冲区 流量控制 虫洞路由芯片 交换机 路由器 设计 

分 类 号：TN915.05[电子电信—通信与信息系统]