公开(公告)号：US20150103643A1

公开(公告)日：2015-04-16

申请号：US14575246

申请日：2014-12-18

Applicant: Hitachi, Ltd.

Inventor： SHINYA FUJIOKA ,  Yoshihiro ASHI ,  Masahiko MIZUTANI ,  Hideki ENDO

IPC: H04L12/24

CPC classification number: H04L41/0668 ,  H04L43/0817

Abstract: A transmission network is comprised of a network management system for collectively managing and controlling a plurality of transmission devices coupled mutually through transmission routes and the transmission network as well. The network management system includes a plane management table adapted to manage transmission planes defined as a set of paths in the transmission network, and the plane management table has the function to set and manage a transmission plane (working plane) applied during normal operation and besides, a single or a plurality of transmission planes (protection planes) applicable in the event of occurrence of a fault in the transmission network. Then, when a fault occurs in the transmission network, the network management system changes the applied plane to a suitable transmission plane.

Abstract translation: 传输网络由用于集体管理和控制通过传输路由和传输网络相互耦合的多个传输设备的网络管理系统组成。 网络管理系统包括适于管理被定义为传输网络中的一组路径的传输平面的平面管理表，并且平面管理表具有设置和管理在正常操作期间应用的传输平面（工作平面）的功能，此外 ，在传输网络中发生故障的情况下可应用的单个或多个传输平面（保护平面）。 然后，当传输网络发生故障时，网络管理系统将应用的平面改变为合适的传输平面。