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    Path Computation Element Central Controllers (PCECCs) for Network Services
    13.
    发明申请
    Path Computation Element Central Controllers (PCECCs) for Network Services 审中-公开
    用于网络服务的路径计算元件中央控制器（PCECC）

    公开(公告)号：US20170012895A1

    公开(公告)日：2017-01-12

    申请号：US15201195

    申请日：2016-07-01

    Applicant: Futurewei Technologies, Inc.

    Inventor： Qianglin Quintin Zhao ,  Renwei Li

    IPC: H04L12/913 ,  H04B1/7143 ,  H04L29/12 ,  H04L12/723 ,  H04L12/46

    CPC classification number: H04L47/724 ,  H04L12/4641 ,  H04L45/38 ,  H04L45/42 ,  H04L45/50 ,  H04L45/507 ,  H04L45/54 ,  H04L45/64 ,  H04L45/68 ,  H04L45/741 ,  H04L63/0272

    Abstract: A method implemented by a path computation element centralized controller (PCECC), the method comprises: receiving a service request to provision for a service from a first edge node and a second edge node in a network; computing a path for a label switched path (LSP) from the first edge node to the second edge node in response to the service request; reserving label information for forwarding traffic of the service on the LSP; and sending a label update message to a third node on the path to facilitate forwarding of the traffic of the service on the path, wherein the label update message comprises the label information.

    Abstract translation: 一种由路径计算元件集中控制器（PCECC）实现的方法，所述方法包括：从网络中的第一边缘节点和第二边缘节点接收服务请求以提供服务; 响应于所述服务请求，计算从所述第一边缘节点到所述第二边缘节点的标签交换路径（LSP）的路径; 在LSP上预留用于转发业务流量的标签信息; 以及向所述路径上的第三节点发送标签更新消息，以便于在所述路径上转发所述服务的业务，其中所述标签更新消息包括所述标签信息。

    Encoding packets for transport over SDN networks
    15.
    发明授权
    Encoding packets for transport over SDN networks 有权
    编码数据包，以便通过SDN网络传输

    公开(公告)号：US09215093B2

    公开(公告)日：2015-12-15

    申请号：US14043048

    申请日：2013-10-01

    Applicant: Futurewei Technologies, Inc.

    Inventor： Lin Han ,  Renwei Li ,  Katherine Zhao ,  Qianglin Quintin Zhao

    IPC: H04L12/28 ,  H04L12/46 ,  H04L12/721

    CPC classification number: H04L12/4633 ,  H04L45/38 ,  H04L2212/00

    Abstract: An ingress node in a Software Defined Network (SDN) comprising a receiver for receiving a data packet, a processor coupled to the receiver and further configured to obtain the data packet from the receiver in a transport protocol agnostic manner, and encapsulate the data packet in an SDN packet header, wherein the packet header comprises SDN flow-specific information provided by an SDN controller, and a transmitter coupled to the processor and further configured to transmit the encapsulated data packet across a single SDN toward an egress node in the SDN.

    Abstract translation: 软件定义网络（SDN）中的入口节点包括用于接收数据分组的接收机，耦合到所述接收机的处理器，并且还被配置为以传输协议无关的方式从所述接收机获得所述数据分组，并将所述数据分组封装在 SDN分组报头，其中所述分组报头包括由SDN控制器提供的SDN特定于流量的信息，以及耦合到所述处理器的发送器，并且还被配置为通过单个SDN向所述SDN中的出口节点发送所述封装数据分组。

    Enhanced upstream label assignment (ULA) mechanism for point to multi-point (P2MP) and/or multi-point to multi-point (MP2MP) facility protection
    16.
    发明授权
    Enhanced upstream label assignment (ULA) mechanism for point to multi-point (P2MP) and/or multi-point to multi-point (MP2MP) facility protection 有权
    用于点到多点（P2MP）和/或多点到多点（MP2MP）设施保护的增强型上行标签分配（ULA）机制

    公开(公告)号：US08995304B2

    公开(公告)日：2015-03-31

    申请号：US13711265

    申请日：2012-12-11

    Applicant: Futurewei Technologies, Inc.

    Inventor： Qianglin Quintin Zhao ,  Katherine Zhao ,  Tao Zhou ,  Ying Chen

    IPC: H04L12/723 ,  H04L12/761

    CPC classification number: H04L45/507 ,  H04L45/16

    Abstract: A computer program product comprising computer executable instructions stored on a non-transitory medium of an upstream node in a network system comprising a plurality of nodes that when executed by a processor cause the node to advertise an upstream assigned label to a downstream node, receive a message from the downstream node, and if the received message confirms that no conflict with the upstream assigned label exists at the downstream node, assign the upstream-assigned label, or if the received message confirms that a conflict with the upstream-assigned label exists at the downstream node, either select a new upstream-assigned label or wait until indication is received that the label resource has become available.

    Abstract translation: 一种计算机程序产品，其包括存储在网络系统中的上游节点的非暂时介质上的计算机可执行指令，所述计算机可执行指令包括多个节点，当由处理器执行时，所述多个节点使所述节点向下游节点通告上游分配的标签， 消息，并且如果接收到的消息确认在下游节点不存在与上游分配标签的冲突，则分配上行分配的标签，或者如果接收到的消息确认与上游分配标签的冲突存在于 下游节点选择新的上游分配标签，或者等待直到收到标签资源已经可用的指示。

    Using PCE as SDN controller
    17.
    发明授权
    Using PCE as SDN controller 有权

    公开(公告)号：US09813333B2

    公开(公告)日：2017-11-07

    申请号：US15239654

    申请日：2016-08-17

    Applicant: Futurewei Technologies, Inc.

    Inventor： Qianglin Quintin Zhao ,  Katherine Zhao ,  Bisong Tao

    IPC: H04L12/28 ,  H04L12/723 ,  H04L12/717 ,  H04L12/759

    CPC classification number: H04L45/50 ,  H04L45/028 ,  H04L45/42 ,  H04L45/507

    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.

    Using PCE as SDN controller
    18.
    发明授权
    Using PCE as SDN controller 有权

    公开(公告)号：US09450864B2

    公开(公告)日：2016-09-20

    申请号：US14511591

    申请日：2014-10-10

    Applicant: Futurewei Technologies, Inc.

    Inventor： Qianglin Quintin Zhao ,  Katherine Zhao ,  Bisong Tao

    IPC: H04L12/28 ,  H04L12/717

    CPC classification number: H04L45/50 ,  H04L45/028 ,  H04L45/42 ,  H04L45/507

    Abstract: Embodiments relate generally to systems and methods for transitioning a system from a tradition network to a Software Defined Network (SDN) enabled network. In some embodiments, the systems and methods may comprise the use of a Path Computation Element (PCE) as a central controller. Smooth transition between traditional network and the new SDN enabled network, especially from a cost impact assessment perspective, may be accomplished using the existing PCE components from the current network to function as the central controller of the SDN network is one choice, which not only achieves the goal of having a centralized controller to provide the functionalities needed for the central controller, but also leverages the existing PCE network components.

    MRSVP-TE BASED FAST REROUTE IN DETOUR (1:1) PROTECTION MODE
    20.
    发明申请
    MRSVP-TE BASED FAST REROUTE IN DETOUR (1:1) PROTECTION MODE 有权
    基于MRSVP-TE的快速REROUTE IN DETOUR（1：1）保护模式

    公开(公告)号：US20160112247A1

    公开(公告)日：2016-04-21

    申请号：US14977759

    申请日：2015-12-22

    Applicant: Futurewei Technologies, Inc.

    Inventor： Katherine Zhao ,  Ying Chen ,  Qianglin Quintin Zhao ,  Tao Zhou ,  Renwei Li ,  Lin Han

    IPC: H04L12/24 ,  H04L12/707

    CPC classification number: H04L41/0654 ,  H04L12/1863 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50 ,  H04L47/15 ,  H04L47/724

    Abstract: An apparatus comprising a memory, and a processor coupled to the memory and configured to transmit a multicast Resource Reservation Protocol-Traffic Engineering (mRSVP-TE) path request (PATH) message upstream, wherein the PATH message requests reservation of a backup Label Switched Path (LSP) to protect an active LSP configured to transmit multicast data. The disclosure also includes a computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a network element (NE) to receive a multicast PATH message from a downstream node, wherein the NE acts as a Point of Local Repair (PLR) along an active LSP, wherein the active LSP is configured to transmit multicast data, and wherein the PATH message requests reservation of a backup LSP to protect the active LSP.

    Abstract translation: 一种包括存储器和处理器的装置，所述处理器耦合到所述存储器并且被配置为在上游传输多播资源预留协议 - 流量工程（mRSVP-TE）路径请求（PATH））消息，其中所述PATH消息请求备份标签交换路径 （LSP），保护被配置为发送组播数据的活动LSP。 本公开还包括计算机程序产品，其包括存储在非暂时性计算机可读介质上的计算机可执行指令，使得当由处理器执行时，使得网元（NE）从下游节点接收多播PATH消息，其中，NE 作为沿主动LSP的本地修复点（PLR），其中活动LSP被配置为传送多播数据，并且其中PATH消息请求预留备用LSP以保护活动LSP。

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