论文部分内容阅读
介绍了哈尔滨联通城域网的基本概况及主从节点组网中经常采用的SNCP环与SNCP环相交及SNCP环与MSP环相交的网络结构的保护原理,提出了采用主从节点保护方式改造城域网汇聚层和接入层的方案,并从带宽利用率、成本、安全性、易维护性等方面对采用主从节点方式前后的网络进行了分析和比较。认为,随着网络的扩大和汇聚节点、光缆的增加,应当建设双节点保护网络,特别是网络越大,建设双节点保护比单节点保护的成本越少。
This paper introduces the general situation of Harbin Unicom metropolitan area network and the protection principle of the intersection of SNCP ring and SNCP ring often used in the master node and slave node network and the intersection of SNCP ring and MSP ring. Domain network convergence layer and access layer programs, and from the aspects of bandwidth utilization, cost, security, ease of maintenance and other aspects of the network before and after using the master-slave node were analyzed and compared. It is considered that with the expansion of the network and the increase of convergence nodes and optical cables, a two-node protection network should be established. In particular, the larger the network, the less the cost of building a two-node protection system than the single-node protection system.