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    Node protection for bum traffic for multi-homed node failure
    2.
    发明授权
    Node protection for bum traffic for multi-homed node failure 有权

    公开(公告)号：US10924332B2

    公开(公告)日：2021-02-16

    申请号：US16217670

    申请日：2018-12-12

    Applicant: Juniper Networks, Inc.

    Inventor： Kapil Arora ,  Vikram Nagarajan ,  Robert W. Kebler ,  Princy T. Elizabeth ,  Ramesh Kandula ,  Soumyodeep Joarder

    IPC: H04L12/24 ,  H04L12/18

    Abstract: Techniques are described for facilitating node protection for Broadcast, unknown Unicast, and Multicast (BUM) traffic for a multi-homed node failure. For example, multi-homed provider edge (PE) devices each advertise egress node protection labels to an ingress PE device. In the event one of the multi-homed PE devices fails, the ingress PE device sends a BUM packet including the egress node protection labels for the failed node. When an egress PE device receives the BUM packet, the egress PE device determines whether the BUM packet includes the egress node protection labels and whether the egress PE device is operating as a backup designated forwarder (DF) on an Ethernet segment identifier (ESI) for which the failed node was the DF. If the BUM packet includes the egress node protection labels and the egress PE device is operating as a backup DF, the egress PE device forwards the BUM traffic to the ESI.

    Node protection for bum traffic for multi-homed node failure
    3.
    发明授权
    Node protection for bum traffic for multi-homed node failure 有权

    公开(公告)号：US11349749B2

    公开(公告)日：2022-05-31

    申请号：US16357136

    申请日：2019-03-18

    Applicant: Juniper Networks, Inc.

    Inventor： Vikram Nagarajan ,  Kapil Arora ,  Robert W. Kebler ,  Princy T. Elizabeth ,  Ramesh Kandula ,  Soumyodeep Joarder

    IPC: H04L12/703 ,  H04L12/707 ,  H04L45/28 ,  H04L12/46 ,  H04L45/00 ,  H04L45/64

    Abstract: Techniques are described for facilitating node protection for Broadcast, unknown Unicast, and Multicast (BUM) traffic for a multi-homed node failure. For example, each VTEP (e.g., PE device) may advertise a protected VTEP address that indicates an IP address of a remote PE device that is to be protected in the event of a node failure. In the event a multi-homed PE device fails, the ingress PE device sends a BUM packet including the protected VTEP address for the failed node. When an egress PE device receives the BUM packet, the egress PE device determines whether the BUM packet includes the protected VTEP address and whether the egress PE device is operating as a backup designated forwarder (DF). If the BUM packet includes the protected VTEP address and the egress PE device is a backup DF, the egress PE device forwards the BUM traffic to the ESI.

    Dynamically providing traffic via various packet forwarding techniques
    5.
    发明授权
    Dynamically providing traffic via various packet forwarding techniques 有权

    公开(公告)号：US10887122B1

    公开(公告)日：2021-01-05

    申请号：US16195061

    申请日：2018-11-19

    Applicant: Juniper Networks, Inc.

    Inventor： Vikram Nagarajan ,  Wen Lin ,  Selvakumar Sivaraj ,  Naveen Ashik ,  Ramesh Kandula ,  Princy T. Elizabeth

    IPC: H04L12/18 ,  H04L12/851 ,  H04L12/813 ,  H04L12/801 ,  H04L12/721

    Abstract: A device may receive a plurality of traffic flows to be provided to a set of destination devices. The device may process the plurality of traffic flows to identify respective sets of attributes associated with the plurality of traffic flows. The device may assign one of a plurality of traffic forwarding techniques, to a first traffic flow, of the plurality of traffic flows, based on the respective sets of attributes associated with the plurality of traffic flows. The device may provide the plurality of traffic flows to the set of destination devices. The device may determine that a condition, of a set of conditions associated with the plurality of traffic flows, has been satisfied in association with providing the plurality of traffic flows to the set of destination devices. The device may perform a set of actions after determining that the condition has been satisfied.

    Packet loss measurement in a distributed data plane
    6.
    发明授权
    Packet loss measurement in a distributed data plane 有权
    分布式数据平面中的丢包测量

    公开(公告)号：US09397913B1

    公开(公告)日：2016-07-19

    申请号：US14228771

    申请日：2014-03-28

    Applicant: Juniper Networks, Inc.

    Inventor： Surya Nimmagadda ,  Liang Zhang ,  Nitin Kumar ,  Sunanda Kommula ,  Ramesh Kandula

    IPC: H04L12/26

    CPC classification number: H04L43/0835

    Abstract: In general, techniques are described for performing packet loss measurement in a distributed data plane. In one example, a local router includes a plurality of forwarding units that implement a distributed data plane. First and second forwarding units may switch layer two (L2) packet data units (PDUs) between the local router and a remote router using a virtual path. The first and second forwarding may unit may increment, in response to processing any PDU of the PDUs for the virtual path, respective counters stored by the first and second forwarding units. The first and second forwarding units may update, based on the respective counters, a loss-measurement packet (LMP). For instance, the first forwarding unit, upon updating the LMP, may internally forward the LMP to the second forwarding unit. The second forwarding unit, upon updating the LMP, may send the LMP to the remote router.

    Abstract translation: 通常，描述了在分布式数据平面中执行分组丢失测量的技术。 在一个示例中，本地路由器包括实现分布式数据平面的多个转发单元。 第一和第二转发单元可以使用虚拟路径在本地路由器和远程路由器之间切换第二层（L2）分组数据单元（PDU）。 响应于处理虚拟路径的PDU的任何PDU，第一和第二转发单元可以递增由第一和第二转发单元存储的相应计数器。 第一和第二转发单元可以基于相应的计数器来更新丢失测量分组（LMP）。 例如，第一转发单元在更新LMP时可以将LMP内部转发到第二转发单元。 第二转发单元在更新LMP时可以将LMP发送到远程路由器。

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