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    ENABLING ENTERPRISE SEGMENTATION WITH 5G SLICES IN A SERVICE PROVIDER NETWORK
    3.
    发明申请
    ENABLING ENTERPRISE SEGMENTATION WITH 5G SLICES IN A SERVICE PROVIDER NETWORK 有权

    公开(公告)号：US20210083933A1

    公开(公告)日：2021-03-18

    申请号：US16571365

    申请日：2019-09-16

    Applicant: Cisco Technology, Inc.

    Inventor： Oliver James Bull ,  Rex Emmanuel Fernando ,  Anand Oswal ,  Kausik Majumdar ,  Darren Russell Dukes ,  Sanjay Kumar Hooda

    IPC: H04L12/24 ,  H04L12/26 ,  H04L12/813 ,  H04L12/851 ,  H04L12/815

    Abstract: An enterprise controller of an enterprise network sends to a service gateway of a service provider network a request for network slice information about network slices provisioned on a data plane of the service provider network. Responsive to the sending, the enterprise controller receives from the service gateway the network slice information including identifiers of and properties associated with the network slices. Responsive to receiving a request for the network slice information from a network device at a border of a forwarding plane of the enterprise network, the enterprise controller sends the network slice information to the network device to cause the network device to perform configuring network traffic in the forwarding plane with identifiers of ones of the network slices that match the network traffic, and to perform forwarding the network traffic configured with the identifiers to the data plane of the service provider network.

    DISTRIBUTION OF SEGMENT IDENTIFIERS IN NETWORK FUNCTIONS VIRTUALIZATION AND SOFTWARE DEFINED NETWORK ENVIRONMENTS
    5.
    发明申请
    DISTRIBUTION OF SEGMENT IDENTIFIERS IN NETWORK FUNCTIONS VIRTUALIZATION AND SOFTWARE DEFINED NETWORK ENVIRONMENTS 有权
    网络功能部门标识符的分配虚拟化和软件定义的网络环境

    公开(公告)号：US20170054626A1

    公开(公告)日：2017-02-23

    申请号：US14832888

    申请日：2015-08-21

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Muthurajah Sivabalan ,  Sami Boutros ,  Peter Psenak ,  Rex Emmanuel Fernando ,  Clarence Filsfils

    IPC: H04L12/755 ,  H04L12/707 ,  H04L12/46

    CPC classification number: H04L45/021 ,  H04L12/4662 ,  H04L45/22 ,  H04L45/64

    Abstract: A method and system are disclosed for distributing (advertising) segment identifiers in network functions virtualization and/or software defined networking environments. An exemplary method includes receiving a route advertisement that includes a prefix with a forwarding address for a first network element and receiving a segment identifier (SID) advertisement that includes a prefix SID for the prefix. The route advertisement may be received from a second network element proxying control plane functions for the first network element. Reachability information for the first network element is updated based on the route advertisement and the SID advertisement.

    Abstract translation: 公开了用于在网络功能虚拟化和/或软件定义的网络环境中分发（广告）段标识符的方法和系统。 一种示例性方法包括：接收包括具有第一网络元件的转发地址的前缀的路由通告，并且接收包括前缀的前缀SID的段标识符（SID）通告。 路由通告可以从第二网络元件接收用于第一网络元件的代理控制平面功能。 基于路由广告和SID广告来更新第一网元的可达性信息。

    Normalized lookup and forwarding for diverse virtual private networks
    8.
    发明授权
    Normalized lookup and forwarding for diverse virtual private networks 有权

    公开(公告)号：US11296985B2

    公开(公告)日：2022-04-05

    申请号：US16939300

    申请日：2020-07-27

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Victor Moreno ,  Sanjay Kumar Hooda ,  Rex Emmanuel Fernando ,  Syam Sundar Appala

    IPC: H04L12/741 ,  H04L45/74 ,  H04L12/46

    Abstract: This technology enables normalized lookup and forwarding for diverse virtual private networks in multi-site network fabric deployments. A source device on a first Layer 2 site transmits a frame to a destination device on the same subnet, but on a second Layer 2 site. The frame is encapsulated and routed to a fabric border node. The fabric border node matches the source subnet to the destination subnet and transmits an address request protocol (“ARP”). In response to not receiving a reply to the ARP, the fabric border node transmits a map request to a Layer 3 transit fabric control plane node. The control plane node extracts a destination identifier from the map request and determines that the destination identifier is a Layer 2 identifier. The control plane node transmits a map reply to the fabric border node, where the frame is re-encapsulated and forwarded to the destination device.

    NORMALIZED LOOKUP AND FORWARDING FOR DIVERSE VIRTUAL PRIVATE NETWORKS
    9.
    发明申请
    NORMALIZED LOOKUP AND FORWARDING FOR DIVERSE VIRTUAL PRIVATE NETWORKS 有权

    公开(公告)号：US20220029915A1

    公开(公告)日：2022-01-27

    申请号：US16939300

    申请日：2020-07-27

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Victor Moreno ,  Sanjay Kumar Hooda ,  Rex Emmanuel Fernando ,  Syam Sundar Appala

    IPC: H04L12/741 ,  H04L12/46

    Abstract: This technology enables normalized lookup and forwarding for diverse virtual private networks in multi-site network fabric deployments. A source device on a first Layer 2 site transmits a frame to a destination device on the same subnet, but on a second Layer 2 site. The frame is encapsulated and routed to a fabric border node. The fabric border node matches the source subnet to the destination subnet and transmits an address request protocol (“ARP”). In response to not receiving a reply to the ARP, the fabric border node transmits a map request to a Layer 3 transit fabric control plane node. The control plane node extracts a destination identifier from the map request and determines that the destination identifier is a Layer 2 identifier. The control plane node transmits a map reply to the fabric border node, where the frame is re-encapsulated and forwarded to the destination device.

    Techniques for optimizing egress tunnel router failure scenarios in intelligent wide area networks
    10.
    发明授权
    Techniques for optimizing egress tunnel router failure scenarios in intelligent wide area networks 有权

    公开(公告)号：US10771390B2

    公开(公告)日：2020-09-08

    申请号：US15626150

    申请日：2017-06-18

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Ravishankar Chandrasekaran ,  Rex Emmanuel Fernando ,  Sanjay Kumar Hooda ,  Jesus Arango

    IPC: H04L12/813 ,  H04L12/46 ,  H04L12/751

    Abstract: One embodiment of a method includes receiving at a first network node traffic from a second network node; and sending by the first network node to a third network node information identifying the second network node via a Local Area Network (“LAN”) connection between the first and third network nodes. Subsequent to receipt of the information identifying the second network node, the third network node updates a locator table maintained by the third network node to include an entry including the information identifying the second network node received by the third network node from the first network node. Upon receipt by the third network node of a notification that the first network node has failed, the third network node sends an update only to network nodes that have an entry in the locator table indicating that the first network node has failed.

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