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    Node protection for stacked labels
    1.
    发明授权
    Node protection for stacked labels 有权

    公开(公告)号：US09794148B1

    公开(公告)日：2017-10-17

    申请号：US14587456

    申请日：2014-12-31

    Applicant: Juniper Networks, Inc.

    Inventor： Chandrasekar Ramachandran ,  Hannes Gredler ,  Balaji Rajagopalan

    IPC: G06F15/177 ,  H04L12/26 ,  H04L12/24

    CPC classification number: H04L45/22 ,  H04L45/28 ,  H04L45/507

    Abstract: Techniques are described for providing node protection in a Source Packet Routing in Networking (SPRING) network. In some examples, a first network device, responsive to detecting a configuration request to provide node protection to a second network device that is adjacent to the first network device: generate at least one context table; configure at least one forwarding entry that indicates: a primary path between the first network device and a third network device, and a backup path, based at least in part on the at least one context table, between the first network device and the third network device that bypasses the second network device; while the second network device has not failed, forward network packets to the third network device using the primary path; and responsive to determining that the second network device has failed, forward network packets to the third network device using the backup path.

    High-scale data center having LSP transport hierarchy
    4.
    发明授权
    High-scale data center having LSP transport hierarchy 有权

    公开(公告)号：US09692692B1

    公开(公告)日：2017-06-27

    申请号：US14869943

    申请日：2015-09-29

    Applicant: Juniper Networks, Inc.

    Inventor： Kaliraj Vairavakkalai ,  Balaji Rajagopalan ,  Chandrasekar Ramachandran

    IPC: H04L12/723 ,  H04L12/741

    CPC classification number: H04L45/50 ,  H04L45/025 ,  H04L45/745

    Abstract: A high-performance, scalable data center switch fabric and infrastructure is described that provides a clean separation between of routing and forwarding information between a transport layer of the data center and a service layer of data center that includes the endpoint devices, such as virtual or physical machines deployed within the data center. For example, techniques are described that enable the automatic creation of a transport hierarchy of label switched paths (LSPs) across the transport layer of the data center. For example, the techniques may be applied with the Border Gateway Protocol (BGP) labeled unicast (LU) in a manner that constructs a hierarchy of LPSs in the transport layer of the data center.

    Preserving consistency of redundant border gateway protocol link state topology information
    5.
    发明授权
    Preserving consistency of redundant border gateway protocol link state topology information 有权

    公开(公告)号：US11902144B1

    公开(公告)日：2024-02-13

    申请号：US17540543

    申请日：2021-12-02

    Applicant: Juniper Networks, Inc.

    Inventor： Balaji Rajagopalan ,  Jeyananth Minto Jeganathan ,  Tarek Saad

    IPC: H04L45/02 ,  H04L45/00

    CPC classification number: H04L45/02 ,  H04L45/04 ,  H04L45/22

    Abstract: A device may receive first topology information from a first network device of a network, and may receive second topology information from a second network device of the network. The device may assign a first BGP-LS identifier to the first network device, and may associate the first topology information with the first BGP-LS identifier. The device may assign a second BGP-LS identifier to the second network device, and may associate the second topology information with the second BGP-LS identifier. The device may store the first topology information, as a first route, based on the first BGP-LS identifier, and may store the second topology information, as a second route, based on the second BGP-LS identifier. The device may select the first route or the second route as a primary route, and may utilize the primary route to control routing of traffic through the network.

    SERVICE-BASED TRANSPORT CLASSES FOR MAPPING SERVICES TO TUNNELS
    7.
    发明申请
    SERVICE-BASED TRANSPORT CLASSES FOR MAPPING SERVICES TO TUNNELS 有权

    公开(公告)号：US20210273827A1

    公开(公告)日：2021-09-02

    申请号：US16836457

    申请日：2020-03-31

    Applicant: Juniper Networks, Inc.

    Inventor： Kaliraj Vairavakkalai ,  Natrajan Venkataraman ,  Balaji Rajagopalan ,  Vasudevan Navaneetha Krishnan

    IPC: H04L12/46 ,  H04L12/851 ,  H04L12/801 ,  H04L12/741 ,  H04L12/725 ,  H04L29/08

    Abstract: Techniques are disclosed for disseminating network service-specific mapping information across administrative domains. In one example, a network device receives an indication of a route target and one or more underlay tunnels configured to support a service route. The service route is configured to transport network traffic associated with a first network service of a plurality of network services. The network device defines, based on the indication, a first transport class of a plurality of transport classes. The network device receives a service route for the first network service and stores a correspondence between the service route and the first transport class. The network device receives network traffic associated with the first network service and forwards, based on the correspondence, the network traffic along the underlay tunnels specified by the first transport class.

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