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    • 2. 发明授权
    • Method for protecting and restoring link using optical label merging and dynamic resource sharing with network load
    • 使用光标签合并和网络负载动态资源共享来保护和恢复链路的方法
    • US07539128B2
    • 2009-05-26
    • US11061637
    • 2005-02-22
    • Hyun Su LimIn Yong HwangHong Shik Park
    • Hyun Su LimIn Yong HwangHong Shik Park
    • G08C15/00H04J1/16H04L12/26
    • H04L45/02H04L41/0663H04L45/28
    • Disclosed herein is a method for protecting and restoring a link in an OBS network. The method includes a step of transmitting/receiving a liveness-confirming message for confirming liveness of the link between an up-node and a down-node respectively connected to both ends of the link at a predetermined message transmission period, to judge whether a fault is generated on the link, a step in which the up-node and down-node respectively update link information when it is judged that the link fault is not generated, and a step of restoring the link having the fault using predetermined restoration channel information based on an offered load measured when the link is in a normal state when it is judged that the link fault is generated. Accordingly, a link having a problem can be effectively protected and restored in the OBS network.
    • 本文公开了一种用于保护和恢复OBS网络中的链路的方法。 该方法包括发送/接收用于确认在预定消息传输周期分别连接到链路的两端的上行节点和下行节点之间的链路的活动的活动确认消息的步骤,以判断故障 在所述链路上生成的步骤,当判断出不产生所述链路故障时,所述上行节点和下级节点分别更新链路信息的步骤,以及使用预定的恢复信道信息来恢复具有故障的链路的步骤 当判断出链路故障被生成时,当链路处于正常状态时测量的提供的负载。 因此,可以在OBS网络中有效地保护和恢复具有问题的链路。
    • 4. 发明授权
    • Void-filling in an optical burst switching system using constant offset
    • 在使用恒定偏移的光突发交换系统中进行空隙填充
    • US07684393B2
    • 2010-03-23
    • US11409596
    • 2006-04-24
    • Seoung Young LeeIn Yong HwangHong Shik Park
    • Seoung Young LeeIn Yong HwangHong Shik Park
    • H04J14/00
    • H04Q11/0066H04Q2011/0064
    • Provided is a method for transmitting a burst in an optical burst switching system, in which when a burst is generated at an originating node, a burst control packet is transmitted to a destination node by way of a plurality of nodes and then a data burst is transmitted after a pre-allocated offset time. The method includes the steps of obtaining an arrival time of data bursts that survive competition to occupy an output channel among data bursts transmitted to the next node by way of the current node using offset time information in burst control packets for the survived data bursts, checking whether an empty void is present between the survived data bursts by using the obtained arrival time of the survived data bursts, and generating a new data burst originating from the current node, inserting the newly generated data burst into the checked empty void, and transmitting to the next node. This method can improve channel utilization and maximize performance of the optical burst switching system.
    • 提供了一种用于在光突发交换系统中发送突发的方法,其中当在始发节点处生成突发时,突发控制分组通过多个节点被发送到目的地节点,然后数据突发是 在预分配的偏移时间之后传输。 该方法包括以下步骤:通过当前节点获得在竞争中幸存的数据脉冲串的到达时间,以通过当前节点使用偏移时间信息来占用输出信道,所述突发信号在突发控制分组中用于存活数据脉冲串,检查 通过使用所获得的幸存数据突发的到达时间,在存活的数据突发之间是否存在空的空白,并且生成源自当前节点的新的数据突发,将新生成的数据突发插入到所检查的空的空白中,并且发送到 下一个节点。 该方法可以提高信道利用率并最大限度地提高光突发交换系统的性能。