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    Forwarding using maximally redundant trees
    2.
    发明授权
    Forwarding using maximally redundant trees 有权
    使用最大冗余树进行转发

    公开(公告)号：US09571387B1

    公开(公告)日：2017-02-14

    申请号：US14015613

    申请日：2013-08-30

    Applicant: Juniper Networks, Inc.

    Inventor： Alia K. Atlas ,  Robert W. Kebler

    IPC: H04L12/28 ,  H04L12/723

    CPC classification number: H04L45/50 ,  H04L12/1877 ,  H04L45/12 ,  H04L45/16 ,  H04L45/48

    Abstract: Network devices can use maximally redundant trees (MRTs) for delivering traffic streams across a network, and for transitioning traffic to a new set of MRTs after a topology change, without dropping traffic. The disclosure describes distributed computation of a set of MRTs from one or more ingress devices to one or more egress devices of the network. In one example, network devices in a network compute a set of MRTs, and establish a set of LSPs along the paths of the set of MRTs. After a change to the network topology, convergence sequencing is managed by a central controller, which centrally orchestrates the sequence for moving traffic from being sent on the old MRT paths to being sent on newly computed MRT paths after the controller determines that all new MRT forwarding state has been installed on the network devices.

    Abstract translation: 网络设备可以使用最大限度地冗余树（MRT）来跨网络传输流量，并且在拓扑更改之后将流量转换到新的一组MRT，而不会丢失流量。 本公开描述了从一个或多个入口设备到网络的一个或多个出口设备的一组MRT的分布式计算。 在一个示例中，网络中的网络设备计算一组MRT，并且沿着该组MRT的路径建立一组LSP。 在网络拓扑变化之后，汇聚顺序由一个中央控制器进行管理，中央控制器将控制器确定所有新的MRT转发之后的流程集中编排，以将流量从旧的MRT路径发送到新计算的MRT路径上 状态已经安装在网络设备上。

    RSVP local protection signaling reduction
    3.
    发明授权
    RSVP local protection signaling reduction 有权

    公开(公告)号：US10659290B1

    公开(公告)日：2020-05-19

    申请号：US16030211

    申请日：2018-07-09

    Applicant: Juniper Networks, Inc.

    Inventor： Markus Jork ,  Abhishek Deshmukh ,  Alia K. Atlas ,  Raveendra Torvi

    IPC: H04L12/24 ,  H04L12/723

    Abstract: In one example, a merge point network device (MP) receives a plurality of resource reservation request messages for establishing a plurality of label switched paths (LSPs), wherein each of the plurality of LSPs has a common point of local repair network device (PLR) and has the MP as a common MP, wherein each of the resource reservation request messages identifies a common bypass tunnel that extends between the PLR and the MP and avoids a protected resource. The MP stores an association between the bypass tunnel and each of the plurality of LSPs. The MP receives a single message to trigger creation at the merge point network device of backup LSP state information for all of the plurality of LSPs. In response to receiving the single message, the MP installs state information for all of the LSPs that correspond to the bypass tunnel according to the stored association.

    RSVP local protection signaling reduction
    4.
    发明授权
    RSVP local protection signaling reduction 有权

    公开(公告)号：US10020984B1

    公开(公告)日：2018-07-10

    申请号：US14152164

    申请日：2014-01-10

    Applicant: Juniper Networks, Inc.

    Inventor： Markus Jork ,  Abhishek Deshmukh ,  Alia K. Atlas ,  Raveendra Torvi

    IPC: G01R31/08 ,  H04L12/24 ,  H04L12/723

    CPC classification number: H04L41/0668 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

    Abstract: In one example, a merge point network device (MP) receives a plurality of resource reservation request messages for establishing a plurality of label switched paths (LSPs), wherein each of the plurality of LSPs has a common point of local repair network device (PLR) and has the MP as a common MP, wherein each of the resource reservation request messages identifies a common bypass tunnel that extends between the PLR and the MP and avoids a protected resource. The MP stores an association between the bypass tunnel and each of the plurality of LSPs. The MP receives a single message to trigger creation at the merge point network device of backup LSP state information for all of the plurality of LSPs. In response to receiving the single message, the MP installs state information for all of the LSPs that correspond to the bypass tunnel according to the stored association.

    REDUCED CONFIGURATION FOR MULTI-STAGE NETWORK FABRICS
    5.
    发明申请
    REDUCED CONFIGURATION FOR MULTI-STAGE NETWORK FABRICS 审中-公开

    公开(公告)号：US20190116116A1

    公开(公告)日：2019-04-18

    申请号：US16015724

    申请日：2018-06-22

    Applicant: Juniper Networks, Inc.

    Inventor： Antoni B Przygienda ,  Alia K. Atlas

    IPC: H04L12/753 ,  H04L12/24

    Abstract: A method includes receiving, by a first network device, messages from a plurality of network devices in a network, each of the messages indicating a level value of a respective sending network device in a network topology, determining, by the first network device and based on the respective levels indicated by the messages, a level value of the first network device in the network topology, determining, by the first network device and based on the determined level value, a mechanism by which to forward network traffic to one or more of the plurality of network devices, and forwarding the network traffic according to the determined mechanism.

    DYNAMIC END-TO-END NETWORK PATH SETUP ACROSS MULTIPLE NETWORK LAYERS
    7.
    发明申请
    DYNAMIC END-TO-END NETWORK PATH SETUP ACROSS MULTIPLE NETWORK LAYERS 有权
    多个网络层之间的动态端到端网络路径设置

    公开(公告)号：US20150063802A1

    公开(公告)日：2015-03-05

    申请号：US14015505

    申请日：2013-08-30

    Applicant: Juniper Networks, Inc.

    Inventor： Nitin Bahadur ,  Kenneth E. Gray ,  Thomas D. Nadeau ,  Alia K. Atlas

    IPC: H04L12/803 ,  H04L12/723 ,  H04Q11/00

    CPC classification number: H04L47/125 ,  H04L45/04 ,  H04L45/125 ,  H04L45/50 ,  H04L45/62 ,  H04L47/781 ,  H04L47/825 ,  H04L47/829 ,  H04Q11/0066 ,  H04Q2011/0073 ,  H04Q2011/0079

    Abstract: A centralized controller provides dynamic end-to-end network path setup across multiple network layers. In particular, the centralized controller manages end-to-end network path setup that provisions a path at both the transport network layer (e.g., optical) and the service network layer (e.g., IP/MPLS). The centralized controller performs path computation for an optical path at the transport network layer and for a path at the service network layer that transports network traffic on the underlying optical transport path, based on information obtained by the centralized controller from the underlying network components at both layers.

    Abstract translation: 集中式控制器提供跨多个网络层的动态端到端网络路径设置。 特别地，集中式控制器管理在传输网络层（例如光学）和服务网络层（例如，IP / MPLS）两者处提供路径的端到端网络路径建立。 集中式控制器对传输网络层的光路进行路径计算，并根据集中式控制器从底层网络组件获取的信息，在传输网络层的路径上传输网络流量， 层。

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