部分标记交换协议中的参数分析  

The Analysis on the Parameters of Partial Label Switching

作　　者：陈剑[1] 王海[2] 王智学[1] 江光杰[1] 

机构地区：[1]解放军理工大学指挥自动化学院,江苏南京210007 [2]解放军理工大学通信工程学院,江苏南京210007

出　　处：《电子学报》2005年第11期2090-2093,共4页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60302023)

摘　　要：PLS(Partial Label Switching)协议融合了拓扑驱动和流驱动两种标记分配方式的优点,在标记空间有限时,能很大程度提高路由器的转发性能.PLS协议涉及到扫描窗口、上下门限以及阻尼因子等参数,本文通过理论以及仿真分析说明使路由器达到最佳的转发性能,扫描窗口的取值应为60秒,而上下门限与阻尼因子之间存在线性关系,并受标记空间大小与网络环境的影响.PLS inherits the merits of both topology driven and flow driven label distribution scheme. It can greatly improve the performance of router when label space is constrained. Some parameters, including scan window, damp factor, upper threshold and low threshold, are used in PLS. To achieve the best performance for router, the value of scan window should be sixty seconds. And the values of upper threshold and lower threshold should adapt to the size of label space and network tragic, which also are linear with the value of damp factor.

关 键 词：MPLS 标记空间 转发性能 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]