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    LAYER 3 CONVERGENCE FOR EVPN LINK FAILURE
    64.
    发明申请
    LAYER 3 CONVERGENCE FOR EVPN LINK FAILURE 有权

    公开(公告)号：US20180006995A1

    公开(公告)日：2018-01-04

    申请号：US15198948

    申请日：2016-06-30

    申请人： Juniper Networks, Inc.

    发明人： Ryan Bickhart ,  Nitin Singh ,  Wen Lin ,  Hassan C. Hosseini

    IPC分类号： H04L29/12 ,  H04L12/46 ,  H04L12/721 ,  H04L12/751 ,  H04L12/723 ,  H04L12/66

    CPC分类号： H04L61/103 ,  H04L12/462 ,  H04L12/4625 ,  H04L12/4641 ,  H04L12/66 ,  H04L45/02 ,  H04L45/50 ,  H04L45/66

    摘要： A network device is configured to provide, via an Ethernet segment with a customer network, active-active multi-homing L2 virtual bridge connectivity to the customer network using an EVPN instance (EVI) and L3 routing using an IRB interface that is a L3 routing interface assigned to the EVI; to receive, from a peer PE device of the EVPN instance, an EVPN route comprising an L2-L3 binding for a customer device of the customer network and associating the L2-L3 binding with the Ethernet segment, the L2-L3 binding comprising an L2 and an L3 address assigned to the customer device, wherein the peer PE device provides, with the network device and via the Ethernet segment, active-active multi-homing L2 virtual bridge connectivity to the customer network; and to forward, via the Ethernet segment and based at least on the L2-L3 binding received from the peer PE device, an L3 packet to the customer device.

    Fast convergence in singly-homed ethernet virtual private networks
    65.
    发明授权
    Fast convergence in singly-homed ethernet virtual private networks 有权
    在单独的以太网虚拟专用网络中快速收敛

    公开(公告)号：US09397931B1

    公开(公告)日：2016-07-19

    申请号：US13969226

    申请日：2013-08-16

    申请人： Juniper Networks, Inc.

    发明人： Satya Ranjan Mohanty ,  John E. Drake ,  Manish Gupta ,  Nadeem Mohammad ,  Wen Lin

    IPC分类号： H04L12/703 ,  H04L12/753 ,  H04L12/721 ,  H04L12/707 ,  H04L12/46

    CPC分类号： H04L45/28 ,  H04L12/4625 ,  H04L45/02 ,  H04L45/22 ,  H04L45/44 ,  H04L45/48 ,  H04L45/66

    摘要： In general, techniques are described for performing a mass withdrawal of media access control (MAC) addresses using a reduced number of route withdrawal messages within a singly-homed segment of an Ethernet Virtual Private Network (EVPN). The techniques may include determining a segment identifier of the segment and sending a route advertisement to advertise a route for the segment identifier to a provider edge network device. The techniques may include sending a route advertisement to advertise one or more media access control (MAC) routes for the layer two segment. The techniques may also include, responsive to determining a link failure between a first provider edge network device and a customer edge network device, sending a withdrawal message to the second provider edge network device for the route associated with the segment identifier to withdraw all of the plurality of MAC routes at the second provider edge network device.

    摘要翻译： 一般来说，描述了使用在以太网虚拟专用网（EVPN）的单个归属段内使用减少数量的路由提取消息来执行媒体访问控制（MAC）地址的大规模提取的技术。 这些技术可以包括确定段的段标识符并且发送路由通告以将段标识符的路由通告给提供者边缘网络设备。 这些技术可以包括发送路由通告以通告用于第二层的一个或多个媒体访问控制（MAC）路由。 所述技术还可以包括响应于确定第一提供商边缘网络设备和客户边缘网络设备之间的链路故障，向与第二提供商边缘网络设备发送与段标识符相关联的路由的提取消息以撤回所有 在第二提供商边缘网络设备处的多个MAC路由。

    End-to-end traffic engineering label switched paths in seamless MPLS
    66.
    发明授权
    End-to-end traffic engineering label switched paths in seamless MPLS 有权
    无缝MPLS中的端到端流量工程标签交换路径

    公开(公告)号：US09178809B1

    公开(公告)日：2015-11-03

    申请号：US13933054

    申请日：2013-07-01

    申请人： Juniper Networks, Inc.

    发明人： Yimin Shen ,  Wen Lin ,  Yakov Rekhter

    IPC分类号： H04L12/28 ,  H04L12/723

    CPC分类号： H04L12/4633 ,  H04L45/50

    摘要： An aggregation node establishes a first session using a traffic-engineering label distribution protocol. The first session has a next hop adjacent to the aggregation node and positioned within a same network as the aggregation node. The aggregation node also establishes a second session using a traffic-engineering label distribution protocol, wherein the second session has a remote next hop positioned at a border between the network and a second network. The aggregation node sends a message destined for the remote next hop over the second session for establishing an end-to-end traffic engineered label switched path for a FEC specified in a label request message received from an access node, wherein the message includes the same the data indicating constraint information that was received by the aggregation node in the label request message.

    摘要翻译： 聚合节点使用流量工程标签分发协议建立第一个会话。 第一个会话具有与聚合节点相邻的下一跳，并且位于与聚合节点相同的网络内。 聚合节点还使用流量工程标签分发协议建立第二会话，其中第二会话具有位于网络和第二网络之间的边界处的远程下一跳。 聚合节点在第二会话上发送去往远程下一跳的消息，以建立用于在从接入节点接收到的标签请求消息中指定的FEC的端到端流量工程标签交换路径，其中消息包括相同 指示由聚合节点在标签请求消息中接收的约束信息的数据。

    Static MAC address propagation in multipoint network services
    67.
    发明授权
    Static MAC address propagation in multipoint network services 有权
    多点网络服务中的静态MAC地址传播

    公开(公告)号：US09019973B1

    公开(公告)日：2015-04-28

    申请号：US13631521

    申请日：2012-09-28

    申请人： Juniper Networks, Inc.

    发明人： Pankaj Shukla ,  Wen Lin

    IPC分类号： H04L12/28 ,  H04L12/751 ,  H04L12/721

    CPC分类号： H04L45/02 ,  H04L45/66

    摘要： A first network device receives a control message at an interface from a second network device, wherein the first network device and the second network device use a multipoint service that provides layer two (L2) connectivity between L2 networks. The control message specifies one or more L2 addresses of customer network devices that are provided connectivity to an autonomous system by the second network device, wherein the control message identifies the L2 addresses as static L2 addresses that are to be persistently maintained at the first network device as reachable by the interface. In response to receiving the control message and by the first network device, the first network device stores the L2 addresses as persistently maintained static L2 addresses being reachable by the interface at which the control message was received.

    摘要翻译： 第一网络设备在来自第二网络设备的接口处接收控制消息，其中第一网络设备和第二网络设备使用提供L2网络之间的第二层（L2）连接的多点服务。 所述控制消息指定由所述第二网络设备提供到与自主系统连接的客户网络设备的一个或多个L2地址，其中所述控制消息将所述L2地址标识为要在所述第一网络设备上持续维护的静态L2地址 由界面可达。 响应于接收到控制消息，并且由第一网络设备，第一网络设备将L2地址存储为由接收控制消息的接口可达到的持久维护的静态L2地址。

    Fast failover in multi-homed ethernet virtual private networks
    68.
    发明授权
    Fast failover in multi-homed ethernet virtual private networks 有权
    多宿主以太网虚拟专用网络中的快速故障切换

    公开(公告)号：US09019814B1

    公开(公告)日：2015-04-28

    申请号：US13959731

    申请日：2013-08-05

    申请人： Juniper Networks, Inc.

    发明人： Satya Ranjan Mohanty ,  Wen Lin ,  John E. Drake

    IPC分类号： G06F11/00 ,  H04L12/24 ,  H04L12/707 ,  H04L12/703

    CPC分类号： H04L41/08 ,  H04L45/00 ,  H04L45/22 ,  H04L45/28

    摘要： In general, techniques are provided for receiving a first control plane message that indicates the reachability of the second PE network device as a designated forwarder in an Ethernet segment. The techniques include receiving a second control plane message comprising information that indicates, in the event of a network failure at the second PE router, that the third PE network device of the plurality of PE network devices is the designated forwarder in the layer two segment. The techniques also include forwarding layer two frames to the second PE network device identified as the designated forwarder in the layer two segment; and responsive to determining a network failure at the second PE network device, configuring, based at least in part on the second control plane message, a forwarding plane of the first PE network device to forward layer two frames to the third PE network device as the designated forwarder.

    摘要翻译： 通常，提供了用于接收指示第二PE网络设备作为以太网段中的指定转发器的可达性的第一控制平面消息的技术。 所述技术包括接收第二控制平面消息，其包括在第二PE路由器发生网络故障的情况下指示所述多个PE网络设备中的所述第三PE网络设备是所述第二层中指定的转发器的信息。 这些技术还包括将第二层帧转发到被识别为第二层段中的指定转发器的第二PE网络设备; 并且响应于确定所述第二PE网络设备处的网络故障，至少部分地基于所述第二控制平面消息来配置所述第一PE网络设备的转发平面，以将所述第二PE网络设备转发到所述第三PE网络设备，作为 指定货运代理