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    Application-specific connectivity loss detection for multicast virtual private networks
    3.
    发明授权
    Application-specific connectivity loss detection for multicast virtual private networks 有权
    组播虚拟专用网络的应用特定连接丢失检测

    公开(公告)号：US09071514B1

    公开(公告)日：2015-06-30

    申请号：US13717602

    申请日：2012-12-17

    申请人： Juniper Networks, Inc.

    发明人： Vikas Hegde ,  Santosh Pallagatti Kotrabasappa ,  Chandrasekar Ramachandran

    IPC分类号： H04L12/24

    CPC分类号： H04L67/104 ,  H04L41/0668 ,  H04L43/0811 ,  H04L43/10 ,  H04L45/16 ,  H04L45/28 ,  H04L45/50 ,  H04L45/507 ,  H04L45/64 ,  H04L45/70 ,  H04W36/30

    摘要： An egress network device of a point-to-point (P2P) tunnel can receive an LSP Ping message via the P2P tunnel from an ingress network device of the P2P LSP, wherein the LSP Ping message specifies a label that the egress network device associates with a service provided to the egress network device via the P2P tunnel. In response to receiving the LSP Ping message, the egress network device can store an association between the label and the P2P tunnel. The egress network device also uses a fault detection network protocol session over the P2P tunnel to monitor a state of the P2P tunnel. In response to detecting based on the fault detection network protocol session that the state of the P2P tunnel is down, the egress network device determines the service is unavailable from the ingress network device via the P2P tunnel, and selects a new source to provide the service.

    摘要翻译： 点对点（P2P）隧道的出口网络设备可以通过P2P隧道从P2P LSP的入口网络设备接收到LSP Ping消息，其中LSP Ping消息指定出口网络设备关联的标签 通过P2P隧道向出口网络设备提供的服务。 响应收到LSP Ping消息，出口网络设备可以存储标签和P2P隧道之间的关联。 出口网络设备还通过P2P隧道进行故障检测网络协议会话来监控P2P隧道的状态。 响应于基于故障检测网络协议会话检测到P2P隧道状态下降，出口网络设备通过P2P隧道确定入境网络设备不能使用业务，并选择新的源提供业务 。

    Forwarding detection for point-to-multipoint label switched paths
    5.
    发明授权
    Forwarding detection for point-to-multipoint label switched paths 有权
    点到多点标签交换路径的转发检测

    公开(公告)号：US08902780B1

    公开(公告)日：2014-12-02

    申请号：US13627660

    申请日：2012-09-26

    申请人： Juniper Networks, Inc.

    发明人： Vikas Hegde ,  Santosh Pallagatti Kotrabasappa ,  Chandrasekar Ramachandran

    IPC分类号： H04L12/26 ,  H04L12/723 ,  H04L12/721 ,  H04L12/24 ,  H01L43/10

    CPC分类号： H04L45/50 ,  H04L41/0677 ,  H04L43/0811 ,  H04L43/10 ,  H04L45/70

    摘要： Techniques are described for verifying the connectivity status of multiple paths through a computer network. The techniques may be useful in testing the connectivity of label switched paths (LSPs), and particularly useful point-to-multipoint (P2MP) LSPs. In some embodiments, a P2MP label switched path (LSP) ping protocol may be used a first connectivity verification protocol for the P2MP LSP and a Multipoint Bidirectional Forwarding Detection (MP BFD) protocol may be used as a second connectivity verification protocol. In addition, use of the LSP ping protocol for connectivity testing of the P2MP LSP may be used to boot-strap session information for MP BFD sessions with egress devices of the P2MP LSP.

    摘要翻译： 描述了用于验证通过计算机网络的多个路径的连接状态的技术。 这些技术可用于测试标签交换路径（LSP）的连接性，特别有用的点对多点（P2MP）LSP。 在一些实施例中，可以使用P2MP标签交换路径（LSP）ping协议用于P2MP LSP的第一连接性验证协议，并且多点双向转发检测（MP BFD）协议可以用作第二连接性验证协议。 另外，使用LSP Ping协议进行P2MP LSP的连通性测试也可以用于引导与BFMP会话的会话信息，用于P2MP LSP的出口设备。