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    EVPN tenant domain transit network for multicast traffic
    1.
    发明授权
    EVPN tenant domain transit network for multicast traffic 有权

    公开(公告)号：US11870605B2

    公开(公告)日：2024-01-09

    申请号：US17840599

    申请日：2022-06-14

    Applicant: Arista Networks, Inc.

    Inventor： Suresh Nalagatla ,  Saravanan Balasubramanian ,  Prashant Srinivas ,  Bharathram Pattabhiraman

    IPC: H04L12/44 ,  H04L12/46 ,  H04L12/18

    CPC classification number: H04L12/4641 ,  H04L12/1886 ,  H04L12/44 ,  H04L12/462

    Abstract: Techniques for operating a network device are provided. In some embodiments, a method may comprise: forwarding multicast data packets from a source in a first customer network to a receiver in a second customer network; detecting that another PE device is forwarding the multicast data packets, wherein: Protocol Independent Multicast (PIM) is enabled on supplemental bridge domain (SBD) logical interfaces of the PE device and the another PE device, the PE device and the another PE device are PIM neighbors, and the PE device and the another PE device communicate with each other and with the receiver using the PIM protocol through an Ethernet virtual private network (EVPN). The method may further comprise: determining the another PE device is an assert winner from among the PE device and the another PE device based on at least one PIM assert message, the another PE device forwarding the multicast data packets.

    MULTICAST TRAFFIC IN VIRTUAL PRIVATE NETWORKS
    2.
    发明申请
    MULTICAST TRAFFIC IN VIRTUAL PRIVATE NETWORKS 有权

    公开(公告)号：US20210092092A1

    公开(公告)日：2021-03-25

    申请号：US16579208

    申请日：2019-09-23

    Applicant: Arista Networks, Inc.

    Inventor： Alton Lo ,  Prashant Srinivas ,  Rajesh Semwal ,  Santosh Kumar

    IPC: H04L29/12 ,  H04L12/18 ,  H04L12/743 ,  H04L12/745 ,  H04L12/46 ,  H04L12/715

    Abstract: In one embodiment, a method is provided. The method includes determining that a network device should use an underlay multicast group associated with an overlay multicast group for multicast traffic. The underlay multicast group carries multicast traffic for the overlay multicast group. The overlay multicast group is associated with a virtual private network. The method also includes determining an underlay multicast group address for the underlay multicast group. The overlay multicast group is associated with an overlay multicast group address. A first portion of the underlay multicast group address is a function of the overlay multicast group address. The method further includes forwarding one or more multicast packets to one or more multicast receivers via the underlay multicast group using the underlay multicast group address.

    MODIFIED DESIGNATED FORWARDER ELECTION PROCESS FOR NON-OVERLAPPING BROADCAST DOMAINS
    4.
    发明申请
    MODIFIED DESIGNATED FORWARDER ELECTION PROCESS FOR NON-OVERLAPPING BROADCAST DOMAINS 有权

    公开(公告)号：US20220337510A1

    公开(公告)日：2022-10-20

    申请号：US17235269

    申请日：2021-04-20

    Applicant: Arista Networks, Inc.

    Inventor： Vijay Mahadevan ,  Rajesh Semwal ,  Prashant Srinivas

    IPC: H04L12/707 ,  H04L12/761 ,  H04L12/721 ,  H04L12/715 ,  H04L12/713

    Abstract: Embodiments described herein relate to techniques for designated forwarder (DF) elections, which may include: obtaining DF candidates that are part of a supplementary broadcast domain (SBD), wherein the DF candidate is one of the plurality of DF candidates for the SBD; performing a SBD DF election process to determine an SBD DF winner from among the DF candidates; making a first determination that the DF candidate is not the SBD DF winner; making second determination that a first broadcast domain (BD) provisioned on the DF candidate is not provisioned on the SBD DF winner; excluding the first BD from a set of BDs that are also provisioned on the SBD DF winner; performing additional DF election processes for each BD of the set of BDs; and processing multicast traffic based at least in part on the SBD DF election process and the additional DF election processes.

    Protocol independent multicast designated router notify delay feature
    5.
    发明授权
    Protocol independent multicast designated router notify delay feature 有权

    公开(公告)号：US10243754B2

    公开(公告)日：2019-03-26

    申请号：US14788230

    申请日：2015-06-30

    Applicant: Arista Networks, Inc.

    Inventor： Xiaoyan Chang ,  John French ,  Prashant Srinivas ,  Maxim Martynov ,  Srinivas Subramanian ,  Yu Iu

    IPC: H04L12/24 ,  H04L29/08 ,  H04L12/801 ,  H04L12/18

    Abstract: Method and system for reducing multicast traffic loss including configuring, on a primary DR including a first configured DR priority, a DR parameter including a value and an attribute; sending to a secondary DR, after a PIM interface comes up, a PIM hello message including a default DR priority lower than a second configured priority of the secondary DR; sending to the secondary DR, after the primary DR reaches a system-up state, a PIM hello message including the default DR priority; performing DR functionality, by the primary DR, after reaching the system-up state; and sending to the secondary DR, after waiting a time period corresponding to the value of the DR parameter, a PIM hello message including the first configured DR priority, where the primary DR waits to send the last PIM hello message to the secondary DR after the time period based on the attribute of the DR parameter.

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