IPv6网络中OSPFv3洪泛多QoS度量的性能

Performance of OSPFv3 Flooding QoS Routing Multi-Metric in IPv6 Networks

分析了开放最短路径优先(OSPFv3)协议的洪泛特点及其链路状态通告(LSAs)洪泛多度量的不足,研究了规则的3、4、6邻点网络,并推导出n邻点网络洪泛多度量的平均洪泛效率和平均洪泛分组数性能.任意节点分布的IPv6网络洪泛多度量的仿真结果表明,网络规模、节点邻接关系和度量数的增多都能引起洪泛效率的下降和网络负载的加重,这对于选择路由度量,构建未来支持服务质量(QoS)路由的IPv6网络有一定参考价值.

By analysis of the flooding features of open shortest path first （OSPFv3） and the shortages of its link-state advertisement （LSAs） flooding multi-metric, the performances of average flooding efficiency （FE） and average flooding packets number （FPN） in regular 3, 4, 6-neighbor and n-neighbor networks are researched. Simulations resulted from arbitrary-node-distribution IPv6 networks show that the increases of the network scale, neighbor nodes and metrics can make the flooding efficiency lower and bring more network loads. The conclusions are very useful in selecting routing metrics and constructing future IPv6 quality of service （QoS） routing networks.