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    EVPN INTER-SUBNET MULTICAST FORWARDING
    13.
    发明申请
    EVPN INTER-SUBNET MULTICAST FORWARDING 审中-公开

    公开(公告)号：US20160277210A1

    公开(公告)日：2016-09-22

    申请号：US14675202

    申请日：2015-03-31

    Applicant: Juniper Networks, Inc.

    Inventor： Wen Lin ,  John E. Drake ,  Zhaohui Zhang

    IPC: H04L12/46 ,  H04L12/761 ,  H04L12/721

    CPC classification number: H04L12/4625 ,  H04L12/1886 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/66

    Abstract: The techniques of this disclosure may improve multicast forwarding in an Ethernet Virtual Private Network when delivering multicast traffic to receivers on a different IP subnet than the multicast source. A method may include configuring first and second layer-2 domains to forward network traffic; configuring a first layer-3 Integrated Routing and Bridging (IRB) interface for the first layer-2 domain and a second layer-3 IRB interface for the second layer 2 domain; receiving a multicast packet from a multicast source device, the multicast source device being included in the first layer-2 domain, the multicast packet having a multicast receiver device in the second layer-2 domain; and forwarding, using the first and second layer-3 IRB interfaces, the multicast packet to the multicast receiver device, without receiving the multicast packet from another provider edge router that has been elected as the designated router on the second IRB interface for the second layer-2 domain.

    Abstract translation: 本发明的技术可以改善以太网虚拟专用网络中的多播转发，以将多播流量递送到与多播源不同的IP子网上的接收机。 一种方法可以包括配置第一和第二层2域以转发网络业务; 为第一层2域配置第一层3集成路由和桥接（IRB）接口，为第二层2域配置第二层-3 IRB接口; 从组播源设备接收组播报文，组播源设备包含在第一层2域中，组播报文具有第二层2域中的组播接收设备; 并且使用第一和第二三层IRB接口将组播分组转发到多播接收机设备，而不从另一个提供者边缘路由器接收到来自第二层的第二IRB接口上的指定路由器的组播分组 -2域。

    MPLS label usage in Ethernet virtual private networks
    14.
    发明授权
    MPLS label usage in Ethernet virtual private networks 有权
    以太网虚拟专用网络中的MPLS标签使用

    公开(公告)号：US09391885B1

    公开(公告)日：2016-07-12

    申请号：US14019387

    申请日：2013-09-05

    Applicant: Juniper Networks, Inc.

    Inventor： Pankaj Shukla ,  Wen Lin ,  Satya Ranjan Mohanty ,  John E. Drake

    IPC: H04L12/723 ,  H04L12/721

    CPC classification number: H04L45/66 ,  H04L45/50

    Abstract: In general, techniques are described for configuring a provider edge (PE) network device of an Ethernet virtual private network (EVPN) to use a common traffic engineering label (e.g., MPLS label) for different EVPN route types associated with the same EVPN. In some examples, the techniques include sending a first layer three (L3) control plane message that indicates a label-switched network protocol label that corresponds to a first EVPN route type, wherein the first L3 control plane message indicates that a first PE network device is reachable in the L2 segment. The techniques may include performing L2 address learning to determine at least one L2 address associated with the layer two segment of the EVPN. The techniques may include sending a second L3 control plane message that indicates the same label included in the first L3 control plane message corresponds to a second EVPN route type.

    Abstract translation: 一般来说，描述了用于配置以太网虚拟专用网（EVPN）的提供商边缘（PE）网络设备以对与相同EVPN相关联的不同EVPN路由类型使用公共流量工程标签（例如，MPLS标签）的技术。 在一些示例中，所述技术包括：发送指示对应于第一EVPN路由类型的标签交换网络协议标签的第一层三（L3）控制平面消息，其中所述第一L3控制平面消息指示第一PE网络设备 在L2段可达。 这些技术可以包括执行L2地址学习以确定与EVPN的第二层段相关联的至少一个L2地址。 这些技术可以包括发送指示包括在第一L3控制平面消息中的相同标签对应于第二EVPN路由类型的第二L3控制平面消息。

    Handling entropy labels when stitching label-switched paths
    15.
    发明授权
    Handling entropy labels when stitching label-switched paths 有权

    公开(公告)号：US09369380B1

    公开(公告)日：2016-06-14

    申请号：US14930080

    申请日：2015-11-02

    Applicant: Juniper Networks, Inc.

    Inventor： Ravi Singh ,  John E. Drake ,  Adrian Farrel ,  Yimin Shen

    IPC: H04L12/723 ,  H04L12/803 ,  H04L29/08

    CPC classification number: H04L45/50 ,  H04L12/4633 ,  H04L47/125 ,  H04L67/1002 ,  H04L69/22

    Abstract: In one example, a stitching point routing device, which stitches a previous segment of an end-to-end label-switched path (LSP) to a next segment of the end-to-end LSP, includes network interfaces configured to receive packets via the previous segment and send packets via the next segment, and one or more processors configured to determine whether the next segment supports entropy labels, determine whether a packet received from the previous segment is encapsulated by a label stack including an entropy label, when the next segment does not support entropy labels and when the packet is encapsulated by the label stack including the entropy label, remove the entropy label from the label stack, when the next segment supports entropy labels and when the packet is not encapsulated by the label stack including the entropy label, add an entropy label to the label stack, and forward the packet along the next segment.

    FAST REROUTE FOR ETHERNET VIRTUAL PRIVATE NETWORKS - VIRTUAL EXTENSIBLE LOCAL AREA NETWORK
    17.
    发明申请
    FAST REROUTE FOR ETHERNET VIRTUAL PRIVATE NETWORKS - VIRTUAL EXTENSIBLE LOCAL AREA NETWORK 有权

    公开(公告)号：US20230095253A1

    公开(公告)日：2023-03-30

    申请号：US18060521

    申请日：2022-11-30

    Applicant: Juniper Networks, Inc.

    Inventor： Wen Lin ,  Yi Zheng ,  Mukesh Kumar ,  Xichun Hong ,  SelvaKumar Sivaraj ,  Vamshi Krishna Voruganti ,  John E. Drake

    IPC: H04L45/28 ,  H04L12/46 ,  H04L41/0668

    Abstract: Techniques are described for providing fast reroute for traffic in EVPN-VXLAN. For example, a backup PE device of an Ethernet segment is configured with an additional tunnel endpoint address (“reroute tunnel endpoint address”) for a backup path associated with a second split-horizon group that is different than a tunnel endpoint address and first split-horizon group for another path used for normal traffic forwarding. The backup PE device sends the reroute tunnel endpoint address to a primary PE device of the Ethernet segment, which uses the reroute tunnel endpoint address to configure a backup path to the backup PE device over the core network. For example, the primary PE device may install the reroute tunnel endpoint address within its forwarding plane and one or more operations to cause the primary PE device to encapsulate a VXLAN header including the reroute tunnel endpoint address when rerouting the packet along the backup path.

    FAST REROUTE FOR BUM TRAFFIC IN ETHERNET VIRTUAL PRIVATE NETWORKS
    19.
    发明申请
    FAST REROUTE FOR BUM TRAFFIC IN ETHERNET VIRTUAL PRIVATE NETWORKS 有权

    公开(公告)号：US20220272027A1

    公开(公告)日：2022-08-25

    申请号：US17249163

    申请日：2021-02-22

    Applicant: Juniper Networks, Inc.

    Inventor： Wen Lin ,  John E. Drake

    IPC: H04L12/761 ,  H04L12/823 ,  H04L12/707 ,  H04L12/723 ,  H04L12/751

    Abstract: Techniques are described for providing fast reroute for BUM traffic in EVPN. For example, a first provider edge (PE) device, elected as a designated forwarder (DF) of an Ethernet segment, configures a backup path using a label received from a second PE device of the Ethernet segment (e.g., backup DF) that identifies the second PE device as a “protector” of the Ethernet segment. For example, a routing component of the DF configures within a forwarding component a backup path to the second PE device, e.g., installing the label and operation(s) within the forwarding component to cause the forwarding component to add the label to BUM packets received from a core network. Therefore, when an access link to the local CE device has failed, the DF reroutes BUM packets from the core network via the backup path to the second PE device, which sends the BUM packets to the CE device.

    DISTRIBUTING SERVICE FUNCTION CHAIN DATA AND SERVICE FUNCTION INSTANCE DATA IN A NETWORK
    20.
    发明申请
    DISTRIBUTING SERVICE FUNCTION CHAIN DATA AND SERVICE FUNCTION INSTANCE DATA IN A NETWORK 有权

    公开(公告)号：US20220078113A1

    公开(公告)日：2022-03-10

    申请号：US17527864

    申请日：2021-11-16

    Applicant: Juniper Networks, Inc.

    Inventor： Eric C. Rosen ,  John E. Drake ,  William Stuart Mackie ,  Adrian John Farrel

    IPC: H04L12/741 ,  H04L12/701 ,  H04L29/08 ,  H04L12/725 ,  H04L12/715 ,  H04L12/721

    Abstract: In some examples, a computing device comprises a first service function instance to apply a service function and a service function forwarder to: receive a first layer 3 routing protocol route advertisement that includes service function instance data for a second service function instance, the service function instance data indicating a service function type and a service identifier for the service function instance; receive a second layer 3 routing protocol route advertisement that includes service function chain data for a service function chain, the service function chain data indicating a service path identifier and one or more service function items; and send, to the second service function instance and based at least on determining a service function item of the one or more service function items indicates the second service function instance, a packet classified to the service function chain.

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