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    • 3. 发明公开
    • Switch system and method for the monitoring of virtual optical paths in an Optical Burst Switched (OBS) Communication network
    • 交换系统和方法,用于在一个OBS通信网络监控虚拟光路
    • EP2323300A1
    • 2011-05-18
    • EP09175742.7
    • 2009-11-12
    • Intune Networks Limited
    • McDonald, DavidFarrell, TomShields, JimCourtney, John
    • H04J14/02
    • H04J14/0227H04J14/0283H04Q11/0066H04Q2011/0064H04Q2011/0069
    • The invention provides an optical burst switch in an Optical Burst Switched (OBS) communication network, said optical burst switch comprising means for monitoring and maintaining mesh of virtual optical paths from a communication node to a plurality of other communication nodes, arranged in a ring network, enabling traffic data to be transmitted and/or received between nodes via a physical optical path. The switch also provides means for sending a data packet probe on a virtual path from a node to each other node in the OBS communication network, wherein data packet probe information received at said switch provides information of availability of the physical optical path for sending traffic data between nodes. The switch can be configured such that the rate at which this path monitoring is scheduled guaranteeing less than 50ms protection switch in the event of monitoring a failed or degraded path.
    • 本发明提供了在光突发切换在交换光脉冲串(OBS)的通信网络,所述光脉冲串开关,包括用于监测和维护的虚拟光路网从通信节点到其它通信节点的复数,布置在环网 ,使交通数据是反式mitted和/或经由物理光路节点之间接收。因此,该开关提供了用于来自节点的虚拟路径上发送数据分组探测到OBS通信网络中海誓山盟节点,worin数据分组 在所述交换机接收到的测试信息提供的用于发送的节点之间的数据通信的物理光路的可用性的信息。 该交换机可配置做了检查,在此路径监视监测故障或降级路径的情况下如期保障小于50ms的保护倒换速度。