路由表的急剧扩张使得可扩展分布式路由器中线卡的硬件成本迅速增长。提出一种路由表的均衡存储转发模型RESD(Storage and Decomposition Model based on Even Routing),它属于非完全存储方式。RESD模型通过初始化分配将长度相邻的前缀...路由表的急剧扩张使得可扩展分布式路由器中线卡的硬件成本迅速增长。提出一种路由表的均衡存储转发模型RESD(Storage and Decomposition Model based on Even Routing),它属于非完全存储方式。RESD模型通过初始化分配将长度相邻的前缀尽可能地分配到相同或是相邻的线卡上,然后通过分段式分配均衡每个线卡上的路由数目,最后通过路由特征位信息表和定位路由来实现路由信息的查找。实验证明,该模型可以在路由表分解存储均衡的同时大大减少LPM匹配中各线卡的并行查找次数。RESD模型的设计和实施原型都是以真实的环境为基础的,因此,RESD模型与现有网络的体系结构具有良好的兼容性,易于实施。展开更多
Adaptive clustering hierarchy routing(ACHR) establishes a clusters-based hierarchical hybrid routing algorithm with two-hop local visibility for delay tolerant network(DTN).The major contribution of ACHR is the combin...Adaptive clustering hierarchy routing(ACHR) establishes a clusters-based hierarchical hybrid routing algorithm with two-hop local visibility for delay tolerant network(DTN).The major contribution of ACHR is the combination of single copy scheme and multi-copy scheme and the combination of hop-by-hop and multi-hop mechanism ACHR,which has the advantages in simplicity,availability and well-expansibility.The result shows that it can take advantage of the random communication opportunities and local network connectivity,and achieves 1.6 times delivery ratio and 60% overhead compared with its counterpart.展开更多
文摘路由表的急剧扩张使得可扩展分布式路由器中线卡的硬件成本迅速增长。提出一种路由表的均衡存储转发模型RESD(Storage and Decomposition Model based on Even Routing),它属于非完全存储方式。RESD模型通过初始化分配将长度相邻的前缀尽可能地分配到相同或是相邻的线卡上,然后通过分段式分配均衡每个线卡上的路由数目,最后通过路由特征位信息表和定位路由来实现路由信息的查找。实验证明,该模型可以在路由表分解存储均衡的同时大大减少LPM匹配中各线卡的并行查找次数。RESD模型的设计和实施原型都是以真实的环境为基础的,因此,RESD模型与现有网络的体系结构具有良好的兼容性,易于实施。
基金Project(531107040202) supported by the Fundamental Research Funds for the Central Universities of China
文摘Adaptive clustering hierarchy routing(ACHR) establishes a clusters-based hierarchical hybrid routing algorithm with two-hop local visibility for delay tolerant network(DTN).The major contribution of ACHR is the combination of single copy scheme and multi-copy scheme and the combination of hop-by-hop and multi-hop mechanism ACHR,which has the advantages in simplicity,availability and well-expansibility.The result shows that it can take advantage of the random communication opportunities and local network connectivity,and achieves 1.6 times delivery ratio and 60% overhead compared with its counterpart.
