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    Scheme for label switched path loop detection at node device
    5.
    发明公开
    Scheme for label switched path loop detection at node device 有权
    节点设备标签交换路径环路检测方案

    公开(公告)号：EP0896494A3

    公开(公告)日：1999-11-17

    申请号：EP98114980.0

    申请日：1998-08-10

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Ohba, Yoshihiro ,  Takahashi, Hunichi ,  Matsuzuwa, Shigeo ,  Katsube, Yasuhiro

    IPC分类号： H04Q11/04 ,  H04L12/56

    CPC分类号： H04L49/309 ,  H04L2012/562 ,  H04L2012/5667 ,  H04Q11/0478

    摘要： A node device and a label switched path loop detection method which are capable of detecting a label switched path loop efficiently and quickly are disclosed. In a node device for carrying out the label switching, an ingress node information is included in a message that is to be successively transmitted from the upstream side in order to set up a label switched path, and the fact that the message with the same ingress node information for the same packet flow will be received from a previous hop node that is different from before if the label switched path has a loop formed thereon is utilized. Also, at a time of transmitting a message for the purpose of setting up a label switched path, if a node at which the label switched path for that packet flow already exists on the upstream or downstream side is encountered, this already existing label switched path is traced along the same or opposite direction as the flow, and the label switched path is set up if no loop is detected after tracing to the end.

    摘要翻译： 公开了能够有效且快速地检测标签交换路径环路的节点设备和标签交换路径环路检测方法。 在用于执行标签交换的节点设备中，入口节点信息被包括在从上游侧连续发送以便建立标签交换路径的消息中，并且具有相同入口的消息 如果利用了如果标签交换路径上形成有回路，则将从与先前不同的前一个节点接收用于相同分组流的节点信息。 此外，在为了建立标签交换路径而发送消息时，如果遇到在该上游或下游侧已经存在该分组流的标签交换路径的节点，则该已存在的标签交换路径 沿着与流向相同或相反的方向被追踪，并且如果在追踪到结束后没有检测到循环，则建立标签交换路径。

    Scheme for label switched path loop detection at node device
    6.
    发明公开
    Scheme for label switched path loop detection at node device 有权
    方案中的一个节点装置，其中该路径由一个识别标签的装置传送检测的循环路径

    公开(公告)号：EP0896494A2

    公开(公告)日：1999-02-10

    申请号：EP98114980.0

    申请日：1998-08-10

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Ohba, Yoshihiro ,  Takahashi, Hunichi ,  Matsuzuwa, Shigeo ,  Katsube, Yasuhiro

    IPC分类号： H04Q11/04 ,  H04L12/56

    CPC分类号： H04L49/309 ,  H04L2012/562 ,  H04L2012/5667 ,  H04Q11/0478

    摘要： A node device and a label switched path loop detection method which are capable of detecting a label switched path loop efficiently and quickly are disclosed. In a node device for carrying out the label switching, an ingress node information is included in a message that is to be successively transmitted from the upstream side in order to set up a label switched path, and the fact that the message with the same ingress node information for the same packet flow will be received from a previous hop node that is different from before if the label switched path has a loop formed thereon is utilized. Also, at a time of transmitting a message for the purpose of setting up a label switched path, if a node at which the label switched path for that packet flow already exists on the upstream or downstream side is encountered, this already existing label switched path is traced along the same or opposite direction as the flow, and the label switched path is set up if no loop is detected after tracing to the end.

    摘要翻译： 的节点装置和标签交换路径环路检测方法，其能够检测的标签交换路径环路有效且迅速地是游离缺失盘。 在用于进行标签交换到入口节点信息的节点设备被包括在消息中所做的是为从上游侧依次反mitted为了建立标签交换路径，并且factthat消息具有相同的入口 对于相同的分组流的节点信息将从先前跳节点接收的确是与以前不同，如果标签交换路径上具有环而形成被利用。 所以，在传送消息用于建立标签的目的的一个时间交换路径，如果在其中的标签交换路径对于分组流的节点已经存在于遇到的上游或下游侧，这已经存在的标签交换路径 沿相同或相反的方向上的流动描绘，并且所述标签交换路径建立如果回溯到结束之后没有检测到环。