%0 Journal Article %T 针对域内流量均衡的二维路由方案<br>Two??Dimensional Routing for Intra??Domain Load Balancing %A 赵成安 %A 王文东 %A 徐明伟 %A 陈文龙 %J 西安交通大学学报 %D 2017 %R 10.7652/xjtuxb201706021 %X 针对域内流量均衡问题,提出了一种二维开放式最短路径优先(OSPF)路由方案TOL。在控制层面,通过对传统链路状态通告(LSA)的扩展,实现包括目的前缀和源前缀的二维路由信息的传递,路由器根据二维路由信息进行计算,生成二维路由表项。在数据转发层面,设计了一种基于传统一维转发表实现二维数据转发的方案,这种转发方案能够有效解决引入源前缀造成的转发表存储空间增长问题,兼容传统转发,为TOL提供保障。为了验证TOL的有效性和可行性,在商用路由器上实现了原型系统,测试和实验结果表明,TOL方案能够在传统IP网络结构和协议的基础上,有效实现流量均衡,减少链路拥塞,且不会带来较大的额外负荷。<br>Two??dimensional IP routing is proposed to solve the problem of load balancing in autonomous domain. For control layer, a two??dimensional OSPF protocol for load balancing, named as TOL, is proposed. TOL is able to realize path switching of flows, including two??dimensional routing information, by means of expanded LSA. For data layer, two??dimensional forwarding scheme is considered to achieve the aim of two??dimensional forwarding by the conventional one??dimensional forwarding tables. A prototype of TOL is realized on the commercial routers. Experimental results show that these schemes can be applied to the conventional IP network structures and protocols to effectively achieve network load balancing and relieve network congestion %K 二维路由协议 %K 二维转发 %K 流量均衡< %K br> %K two??dimensional routing %K two??dimensional forwarding %K load balancing %U http://zkxb.xjtu.edu.cn/oa/DArticle.aspx?type=view&id=201706021