格状网中基于DCPC协议的局部扩散式P圈自动配置  

Automatic Configuration P-Cycle with Partial Flooding Based DCPC in Optical Mesh Network

作　　者：李彬[1] 黄善国[1] 谭代炜[1] 段若琳[1] 张永军[1] 顾畹仪[1] 

机构地区：[1]北京邮电大学光通信与光波技术教育部重点实验室,北京100876

出　　处：《北京理工大学学报》2009年第5期431-435,共5页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(60702005);国家"八六三"计划项目(2006AA01Z246);国家教育部新世纪优秀人才支持计划资助(NCET-05-0112);国家教育部高等学校博士学科点专项科研基金资助课题(20070013022)

摘　　要：为解决线性配置方法DCPC在格状网络拓扑下效率低的问题,通过ASON控制平面技术扩展,设计了一种基于P圈自动配置协议DCPC的扩散式的P圈配置方法F-DCPC,通过圈内节点间的分布式协作快速完成配置,缩短网络的配置时间.该方法通过圈内节点之间泛洪,快速获得网络的连接与资源分布信息.结果表明,该方法在高负载环境下的格状光网络拓扑结构中具有较短的配置时间.利用ASON控制平面实现P圈的静态、动态自动化配置,并针对不同的P圈生成算法,通过仿真定量地分析网络采用该方法的额外开销.To solve the problem of inefficiency of DCPC（distributed cycle pre-configuration） in optical mesh network due to linear configuration, a flooding based DCPC is developed by extending techniques in the ASON control plane, which aims to shorten the configuration time. Distributed cooperation between on-cycle nodes can rapidly obtain information about network connectivity and resource distribution. The results showed that F-DCPC takes great advantages in the heavy loaded mesh optical network, and automatic configurations of the static and dynamic P- cycle can be implemented by utilizing ASON controlling techniques. Quantitative analysis of extra overhead involved by F-DCPC is presented by simulation and comparison under several P-cycle enumeration algorithms.

关 键 词：P圈 格状光网络 扩散 分布式 预配置 生存性 

分 类 号：TN929.11[电子电信—通信与信息系统]