区分业务的混合网络资源优化方法  

DiffServ resource optimization methods in hybrid networks

作　　者：曲桦[1,2] 张莹[1] 赵季红[1] 

机构地区：[1]西安邮电学院通信工程系,陕西西安710061 [2]西安交通大学软件学院,陕西西安710049

出　　处：《计算机工程与设计》2010年第21期4579-4582,共4页Computer Engineering and Design

基　　金：国家863高技术研究发展计划基金项目(2007AA01Z254;2009AA01Z213);国家自然科学基金项目(60872058)

摘　　要：为了实现混合网络资源的最大利用,以IP/GMPLS over WDM网络为例,提出了一种区分业务的混合网络资源优化方法。该方法通过不给多跳低等级业务提供光路级保护,以及当承载LSP业务的工作光路故障无关的情况下保护光路共享波长资源的方式,有效降低了光路的建立数以及所需的波长数,在最大程度上提高了网络资源的利用率,降低了网络的整体开销。最后建立了整数线性规划模型,并通过该模型验证了方法的有效性。To achieve the maximum use of hybrid network, using IP/GMPLS over WDM network as an example, a Diffserv resource optimization method in hybrid network is proposed. Through the method without providing lightpath protection for multi-hop lowpriority traffic, and protection lightpaths can share wavelengths when the working lightpaths which carrying LSPs link-disjoint, the number of lightpaths and used wavelengths are reduced effectively, and to the full extent improve efficiency of network resources, the overall cost of network is also reduced. The integer linear programming model is established, and the practicability of this algorithm is illustrated.

关 键 词：混合网络 网络代价 备用资源共享 业务分级 整数线性规划 

分 类 号：TN915[电子电信—通信与信息系统]