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    Traffic engineering for bit indexed explicit replication
    1.
    发明授权
    Traffic engineering for bit indexed explicit replication 有权

    公开(公告)号：US10958566B2

    公开(公告)日：2021-03-23

    申请号：US16457339

    申请日：2019-06-28

    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 ,  H04L12/931 ,  H04L12/741 ,  H04L12/751

    Abstract: Methods, network devices and computer readable media are disclosed for traffic-engineered forwarding through a new form of bit indexed explicit replication. In one embodiment, a method includes receiving, at an ingress node of a network, a message associated with a message flow, obtaining a message bit array corresponding to the message flow, encapsulating the message with the message bit array to form an encapsulated message, and forwarding the encapsulated message into the network. Bit positions in the message bit array are assigned to separate segments of a path or tree in the network, and an explicit path or tree for the message flow is defined as an end to end connection of multiple segments assigned bit positions having a first bit value in the message bit array.

    Failure protection for traffic-engineered bit indexed explicit replication
    2.
    发明授权
    Failure protection for traffic-engineered bit indexed explicit replication 有权

    公开(公告)号：US10693765B2

    公开(公告)日：2020-06-23

    申请号：US16117932

    申请日：2018-08-30

    Applicant: Cisco Technology, Inc.

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

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

    Abstract: Methods and network devices are disclosed for failure protection in traffic-engineered bit indexed explicit replication networks. In one embodiment, a method includes determining a protected link or node in a network, where the protected link or node is included in a designated path to be taken by a message through the network to a destination node, the designated path is encoded in a message bit array carried by the message, and assigned bit positions in the message bit array represent respective network links along the designated path. The method further includes determining a backup path to the destination node from a feeder node adapted to forward a message carrying the message bit array into the protected link or node, and populating an entry in a path update table stored at the feeder node. In one embodiment a network device includes a network interface and a processor configured to carry out the methods.

    TRAFFIC ENGINEERING FOR BIT INDEXED EXPLICIT REPLICATION
    3.
    发明申请
    TRAFFIC ENGINEERING FOR BIT INDEXED EXPLICIT REPLICATION 审中-公开

    公开(公告)号：US20190327168A1

    公开(公告)日：2019-10-24

    申请号：US16457339

    申请日：2019-06-28

    Applicant: CISCO TECHNOLOGY, INC.

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

    IPC: H04L12/761 ,  H04L29/06 ,  H04L12/46 ,  H04L12/703

    Abstract: Methods, network devices and computer readable media are disclosed for traffic-engineered forwarding through a new form of bit indexed explicit replication. In one embodiment, a method includes receiving, at an ingress node of a network, a message associated with a message flow, obtaining a message bit array corresponding to the message flow, encapsulating the message with the message bit array to form an encapsulated message, and forwarding the encapsulated message into the network. Bit positions in the message bit array are assigned to separate segments of a path or tree in the network, and an explicit path or tree for the message flow is defined as an end to end connection of multiple segments assigned bit positions having a first bit value in the message bit array.

    FAILURE PROTECTION FOR TRAFFIC-ENGINEERED BIT INDEXED EXPLICIT REPLICATION
    4.
    发明申请
    FAILURE PROTECTION FOR TRAFFIC-ENGINEERED BIT INDEXED EXPLICIT REPLICATION 审中-公开

    公开(公告)号：US20190020574A1

    公开(公告)日：2019-01-17

    申请号：US16117932

    申请日：2018-08-30

    Applicant: Cisco Technology, Inc.

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

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

    Abstract: Methods and network devices are disclosed for failure protection in traffic-engineered bit indexed explicit replication networks. In one embodiment, a method includes receiving at a node in a network a message comprising a message bit array, where bit positions in the message bit array correspond to respective links in the network. The method further includes evaluating a bit value at a bit position in the message bit array, where the bit position corresponds to a network link represented in a forwarding table for the node, checking for a failure state of the link represented in the forwarding table, and, responsive to a determination of a failure state of the link, modifying one or more bit values in the message bit array. In one embodiment a network device includes a network interface, a memory configured to store a forwarding table, and a processor configured to carry out the methods.

    Creating Three-Party Trust Relationships for Internet of Things Applications
    5.
    发明申请
    Creating Three-Party Trust Relationships for Internet of Things Applications 有权
    为物联网创造三方信任关系

    公开(公告)号：US20160285891A1

    公开(公告)日：2016-09-29

    申请号：US14669086

    申请日：2015-03-26

    Applicant: Cisco Technology, Inc.

    Inventor： Charles Calvin Byers ,  Toerless Eckert ,  Faisal Siyavudeen

    IPC: H04L29/06

    CPC classification number: H04L63/1408 ,  H04L63/0884 ,  H04L63/105 ,  H04L63/108

    Abstract: A trust relationship is established at a first network connected device between the first network connected device and a second network connected device. A communication session is established between the first network connected device and a third network connected device, wherein the third network connected device lacks a trust relationship with the second network connected device. A message is sent from the first network connected device to establish a communication session between the third network connected device and the second network connected device based on the trust relationship between the first network connected device and the second network connected device.

    Abstract translation: 在第一网络连接设备和第二网络连接设备之间的第一网络连接设备处建立信任关系。 在第一网络连接设备和第三网络连接设备之间建立通信会话，其中第三网络连接设备与第二网络连接设备缺少信任关系。 基于第一网络连接设备和第二网络连接设备之间的信任关系，从第一网络连接设备发送消息以在第三网络连接设备和第二网络连接设备之间建立通信会话。

    Traffic engineering for bit indexed explicit replication
    6.
    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.

    Creating three-party trust relationships for internet of things applications
    7.
    发明授权
    Creating three-party trust relationships for internet of things applications 有权

    公开(公告)号：US09667635B2

    公开(公告)日：2017-05-30

    申请号：US14669086

    申请日：2015-03-26

    Applicant: Cisco Technology, Inc.

    Inventor： Charles Calvin Byers ,  Toerless Eckert ,  Faisal Siyavudeen

    IPC: H04L29/06

    CPC classification number: H04L63/1408 ,  H04L63/0884 ,  H04L63/105 ,  H04L63/108

    Abstract: A trust relationship is established at a first network connected device between the first network connected device and a second network connected device. A communication session is established between the first network connected device and a third network connected device, wherein the third network connected device lacks a trust relationship with the second network connected device. A message is sent from the first network connected device to establish a communication session between the third network connected device and the second network connected device based on the trust relationship between the first network connected device and the second network connected device.

    FAILURE PROTECTION FOR TRAFFIC-ENGINEERED BIT INDEXED EXPLICIT REPLICATION
    9.
    发明申请
    FAILURE PROTECTION FOR TRAFFIC-ENGINEERED BIT INDEXED EXPLICIT REPLICATION 审中-公开
    用于交通工程师的失败保护指示明确的复制

    公开(公告)号：US20160254991A1

    公开(公告)日：2016-09-01

    申请号：US15054480

    申请日：2016-02-26

    Applicant: Cisco Technology, Inc.

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

    IPC: H04L12/703 ,  H04L29/06 ,  H04L12/741

    CPC classification number: H04L45/16 ,  H04L12/4633 ,  H04L45/02 ,  H04L45/28 ,  H04L45/745 ,  H04L49/201 ,  H04L69/22

    Abstract: Methods and network devices are disclosed for failure protection in traffic-engineered bit indexed explicit replication networks. In one embodiment, a method includes receiving at a node in a network a message comprising a message bit array, where bit positions in the message bit array correspond to respective links in the network. The method further includes evaluating a bit value at a bit position in the message bit array, where the bit position corresponds to a network link represented in a forwarding table for the node, checking for a failure state of the link represented in the forwarding table, and, responsive to a determination of a failure state of the link, modifying one or more bit values in the message bit array. In one embodiment a network device includes a network interface, a memory configured to store a forwarding table, and a processor configured to carry out the methods.

    Abstract translation: 公开了用于业务工程位索引显式复制网络中的故障保护的方法和网络设备。 在一个实施例中，一种方法包括在网络中的节点处接收包括消息比特阵列的消息，其中消息比特阵列中的比特位置对应于网络中的相应链路。 该方法还包括评估消息比特阵列中比特位置的比特值，其中比特位置对应于在节点的转发表中表示的网络链路，检查在转发表中表示的链路的故障状态， 并且响应于所述链路的故障状态的确定，修改所述消息比特数组中的一个或多个比特值。 在一个实施例中，网络设备包括网络接口，被配置为存储转发表的存储器和被配置为执行所述方法的处理器。

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