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    Overlay signaling for bit indexed explicit replication
    31.
    发明授权
    Overlay signaling for bit indexed explicit replication 有权

    公开(公告)号：US10461946B2

    公开(公告)日：2019-10-29

    申请号：US14603561

    申请日：2015-01-23

    Applicant: Cisco Technology, Inc.

    Inventor： Ijsbrand Wijnands ,  Gregory J. Shepherd ,  Christian J. Martin

    IPC: H04L12/18 ,  H04L12/741 ,  H04L12/761

    Abstract: Various systems and methods for performing bit indexed explicit replication (BIER). For example, one method involves receiving a membership request at a node. The membership request is received from a host and the membership request identifies a multicast group. In response to receiving the membership request, the node generates a membership message. The membership message includes information identifying the multicast group and information identifying the node. The node transmits the membership to an overlay participant that stores a bit string associated with the multicast group.

    BIT INDEXED EXPLICIT REPLICATION FOR LAYER 2 NETWORKING
    33.
    发明申请
    BIT INDEXED EXPLICIT REPLICATION FOR LAYER 2 NETWORKING 审中-公开

    公开(公告)号：US20190215176A1

    公开(公告)日：2019-07-11

    申请号：US16237575

    申请日：2018-12-31

    Applicant: Cisco Technology, Inc.

    Inventor： Ijsbrand Wijnands ,  Gregory J. Shepherd ,  Nagendra Kumar Nainar

    IPC: H04L12/18 ,  H04L12/761 ,  H04L12/721 ,  H04L12/741

    CPC classification number: H04L12/1886 ,  H04L12/18 ,  H04L45/16 ,  H04L45/50 ,  H04L45/66 ,  H04L45/74

    Abstract: Functionality for creating a bit routing table for use in a bit-indexed explicit replication (“BIER”) environment in disclosed herein. In one embodiment, this functionality includes receiving information from a host, and determining whether the information comprises a MAC address that is a bit-indexed explicit replication (“BIER”) MAC address. In response to determining that the information comprises a BIER MAC address, this functionality creates an entry corresponding to the MAC address in a bit routing table. This functionality also analyzes the information to determine a bit position that is associated with the host, and also determines a port via which the host is reachable. The functionality updates the bit routing table by storing information identifying the bit position and the port in the entry, such that the bit position and the port both correspond to the MAC address. This functionality can be used to route packets in a BIER environment.

    Traffic engineering for bit indexed explicit replication
    34.
    发明授权
    Traffic engineering for bit indexed explicit replication 有权

    公开(公告)号：US10341221B2

    公开(公告)日：2019-07-02

    申请号：US14814575

    申请日：2015-07-31

    Applicant: Cisco Technology, Inc.

    Inventor： Toerless Eckert ,  Ijsbrand Wijnands ,  Gregory J. Shepherd ,  Neale D. R. Ranns

    IPC: H04L12/761 ,  H04L12/46 ,  H04L12/703 ,  H04L29/06 ,  H04L12/741 ,  H04L12/751 ,  H04L12/931

    Abstract: Methods and network devices are disclosed for traffic-engineered forwarding through a new form of bit indexed explicit replication. In one embodiment, a method includes receiving at a first node in a network a message comprising a message bit array, and comparing bit values at one or more bit positions in the message bit array to one or more entries in a forwarding table stored at the first node. The one or more bit positions correspond in this embodiment to links in the network. This embodiment of the method further includes forwarding the message over a link represented in the forwarding table if a result of the comparing indicates that the link is included in a path to be taken by the message. In a further embodiment of the method, the message is a multicast message and forwarding the message comprises forwarding a replica of the multicast message.

    UNICAST MEDIA REPLICATION FABRIC USING BIT INDEXED EXPLICIT REPLICATION
    38.
    发明申请
    UNICAST MEDIA REPLICATION FABRIC USING BIT INDEXED EXPLICIT REPLICATION 审中-公开

    公开(公告)号：US20180091473A1

    公开(公告)日：2018-03-29

    申请号：US15581806

    申请日：2017-04-28

    Applicant: Cisco Technology, Inc.

    Inventor： Ijsbrand Wijnands ,  Thomas Kernen ,  Gregory J. Shepherd ,  Neale D. R. Ranns

    IPC: H04L29/12 ,  H04L29/06

    CPC classification number: H04L65/4076 ,  H04L61/103 ,  H04L61/2007 ,  H04L61/2069 ,  H04L61/6095 ,  H04L65/607

    Abstract: Methods and network devices are disclosed for replication and switching of Internet Protocol (IP) packets in professional media networks. In one embodiment, a method includes encapsulating a unicast IP packet with a packet bit array and forwarding the encapsulated packet via a replication fabric within a network. In this embodiment, each receiver of a plurality of receivers reachable via the replication fabric is represented by a relative bit position in the packet bit array, a respective IP address is assigned to each receiver of the plurality of receivers, and the replication fabric is adapted to store disposition information mapping a relative bit position representing one or more of the plurality of receivers to IP addresses assigned to the one or more of the plurality of receivers. An embodiment of a network device includes a processor operably coupled to a network interface and adapted to perform steps of the method.

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