【摘要】 为了提高网络服务的质量,在Internet上经常采用复制的方法产生一组镜像服务器。选播是在单个发送者与一组接收者中任意一个主机之间的数据通信,选播服务可以改善网络负载分布和简化网络应用;根据路径的距离,发往某选播地址的数据包被路由到拥有该地址且最近的镜像服务器;然而,最近的镜像服务器不一定是最佳的镜像服务器。负载平衡是一种通过充分利用所提供的冗余多链路进行业务量分配的模式。基于IPv6选播路由协议,文章提出了一个新的协议模型,通过TCP连接总数确定选播地址对应的最佳服务器,有效地解决由当前选播路由协议确定的最近服务器产生网络拥塞时如何改善路由策略问题,从而实现负载平衡并提高网络的传输性能。更多还原

【Abstract】 In order to obtain higher quality of network services,it always duplicates a set of mirror servers in Internet.Anycast is this type of network service that delivers a datagram to any server out of a group of servers distributed throughout the network,it can improve the distribution of network load and simplify some network applications.As origi-nally introduced in RFC1546,anycast is a way to reach the nearest mirror server.However,this server is not always the best one.So loading balance via using the provided redundant links maybe the solution to find the best mirror server.In this paper,based on IPv6anycast routing protocol,a new protocol model is proposed,which confirms the best server to-ward some anycast address via the sum of TCP connects.It can effectively solve the problem on how to improve the routing policy when the server confirmed is jammed by current routing protocols,thus to implement load balancing and promote the transmission performance of Internet.更多还原