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    • 72. 发明授权
    • Information transmission network system and its traffic control method and node equipment
    • 信息传输网络系统及其流量控制方法和节点设备
    • US06917583B2
    • 2005-07-12
    • US09788593
    • 2001-02-21
    • Masatoshi Suzuki
    • Masatoshi Suzuki
    • H04J3/00H04J3/08H04J3/14H04L1/22H04Q11/04G01R31/08
    • H04J3/085H04J3/14H04J2203/006H04L1/22
    • In SDH-based transmission systems with redundancy, in the event of failure in the service transmission lines, before the service traffic communication path set in the service transmission lines is switched to the protection transmission lines, if there is a communication path for sub traffic set in the protection transmission lines, the AU-AIS signal is inserted at the exit to lower-tier terminals to terminate the sub traffic communication path. Unless there is a communication path set for sub traffic in the protection transmission lines, the UNEQ signal is inserted at the exit to lower-tier terminals which are substantially connected to the protection transmission lines to terminate the sub traffic communication path. Later, the service traffic communication path is switched to the protection transmission lines. Then a misconnect during redundancy lines switching is prevented and the possibility of leak of the service traffic transmission information is eliminated.
    • 在具有冗余的基于SDH的传输系统中,在服务传输线路发生故障的情况下,在服务传输线路中设置的服务业务通信路径切换到保护传输线路之前,如果存在用于子业务集的通信路径 在保护传输线路中,将AU-AIS信号插入到下层终端的出口,以终止子业务通信路径。 除非在保护传输线路中设置了用于子业务的通信路径,否则将UNEQ信号插入到基本连接到保护传输线路的下层终端的出口,以终止子业务通信路径。 之后,服务业务通信路径切换到保护传输线路。 然后,在冗余线路切换期间发生错误连接,并且消除了服务业务传输信息泄漏的可能性。