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    • 5. 发明申请
    • METHOD, APPARATUS AND SYSTEM FOR AVOIDING LOOP IN ETHERNET RING
    • 用于避免以太网环路环路的方法,装置和系统
    • US20090168646A1
    • 2009-07-02
    • US12399529
    • 2009-03-06
    • Yan WANGSuping ZHAIPingan ZHANG
    • Yan WANGSuping ZHAIPingan ZHANG
    • G06F11/00
    • H04L12/66H04L12/403H04L45/28
    • A method for avoiding loop in an Ethernet ring includes, preventing, by transmit nodes constituting a ring, themselves from using the data frame transmission capabilities of ports on a link affected by a failure, when the ring failure has been detected by a transmit node constituting a ring; obtaining, by a master node of the ring, the ring failure, and performing a protection switching operation; flushing, by transmit nodes, their own forwarding tables, and forwarding a frame according to the flushed forwarding tables. If the failure in the ring has been removed, the master node shifts to a normal state and transmit nodes restore their data frame transmission capabilities of ports on a link ever affected by a failure. A system and an apparatus for avoiding data loop in an Ethernet ring are also disclosed.
    • 一种避免以太网环路环路的方法,包括:当发起节点构成的环路故障已经被环路故障检测到时,阻止由构成环的发送节点自身使用受故障影响的链路上的端口的数据帧传输能力 戒指; 由环的主节点获取环路故障,并执行保护倒换操作; 通过发送节点冲洗自己的转发表,并根据刷新的转发表转发帧。 如果环路故障已经消除,则主节点转移到正常状态,传输节点恢复由于故障影响的链路上的端口的数据帧传输能力。 还公开了一种用于避免以太网环中的数据环路的系统和装置。
    • 6. 发明申请
    • METHOD FOR DETECTING AN AVAILABLE/UNAVAILABLE STATE OF PACKET TRANSPORT NETWORK
    • 检测分组运输网络的可用/不可用状态的方法
    • US20080259808A1
    • 2008-10-23
    • US12146842
    • 2008-06-26
    • Yan WANGSuping ZHAI
    • Yan WANGSuping ZHAI
    • H04L12/26
    • H04L43/0817H04L43/0829H04L43/0852
    • A method for detecting an available/unavailable state of a packet transport network, includes the steps of: in the packet transport network, detecting a severely errored second (SES) using performance parameters of the packet transport network, and detecting an available/unavailable time with the SES as a reference, and thus providing a method of determining if the packet transport network enters and exits the available/unavailable state. In this way, the detection of the available time of the packet transport network is achieved, and it is ensured that performance parameters of the packet transport network are measured when the packet transport network is in an available state, while the measurement of the performance parameters of the packet transport network is stopped when the packet transport network is in an unavailable state. Thus, the OAM mechanism of the packet transport network can be improved, and the defects in the performance management of the packet transport network can be eliminated.
    • 一种用于检测分组传输网络的可用/不可用状态的方法,包括以下步骤:在分组传输网络中,使用分组传输网络的性能参数检测严重错误的第二(SES),并检测可用/不可用时间 以SES为参考,从而提供一种确定分组传输网络是否进入和退出可用/不可用状态的方法。 以这种方式,实现了分组传输网络可用时间的检测,确保了分组传输网络处于可用状态时测量分组传输网络的性能参数,同时测量性能参数 当分组传输网络处于不可用状态时,分组传输网络被停止。 因此,可以提高分组传送网络的OAM机制,可以消除分组传输网络的性能管理缺陷。