基于IP/MPLS网络的动态业务流量矩阵测量模型

An architecture for traffic matrix measurement in IP/MPLS based network

IP网络动态业务流量矩阵的测量是业务量工程研究中的一个难点,本文提出了一种面向IP/MPLS骨干网络的基于LSP级的动态业务流量矩阵测量模型。该模型能够获取网络边界处对应于每一条LSP的路径转发信息,并根据每一条LSP上的测量结果,计算得知全网的业务流量矩阵。文中证明该测量模型是可行的,并给出了相关的算法及其性能分析。模型的优点是测量只在网络边界处进行而不涉及网络核心,故引起的网络开销较小。另外模型所需的算法复杂度低,仿真结果显示测量模型是有效的。

An architecture for deriving traffic matrix in IP/MPLS network is introduced. It is based on LSP level抯 measurement and performed only at LERs whereas not involving with core LSRs. After measuring at every LSP and obtaining the path抯 hops, the system will derive the network抯 traffic matrix of time scales. The model is proved that it is feasible. And the inferring algorithm needs less intensive computation. The simulation results show that our model is comparable.