【摘要】 P圈的出现为在格状WDM光网络中实现快速的故障恢复提供了一种很吸引人的方案,P圈法兼有环网快速的保护倒换速度和格状网络有效的资源利用率这两大特点。从P圈的基本概念、P圈的主要特点以及P圈的配置等几个方面出发对在格状WDM网络中使用P圈法实现网络保护的方案进行了介绍。更多还原

【Abstract】 The appearance of p-cycles provides an attractive way to realize fast fault restoration in the mesh telecommunication networks. The p-cycles method owns the fast recovery speed of rings with the capacity efficiency of mesh restorable networks. In this paper, the scheme of implementing p-cycles method in WDM networks is introduced, including the basic concept of p-cycles, the main characteristics of p-cycles in WDM networks.更多还原