公开(公告)号：US20160006609A1

公开(公告)日：2016-01-07

申请号：US14790153

申请日：2015-07-02

Applicant: Futurewei Technologies, Inc.

Inventor： Qianglin Quintin Zhao

IPC: H04L12/24 ,  H04L12/723

CPC classification number: H04L45/50 ,  H04L41/0816 ,  H04L45/22

Abstract: A path control element (PCE) is provided, including a processor and a non-transitory computer readable storage medium coupled to the processor. The storage medium stores programming for execution by the processor, wherein the programming, when executed by the processor, configures the PCE to receive a request for a path of a unicast or multicast label switching path (LSP), determine a primary path and a secondary/local protection path through a plurality of nodes in a label switched network, and provide the primary path and the secondary/local protection path to the plurality of nodes.

Abstract translation: 提供路径控制元件（PCE），其包括耦合到处理器的处理器和非暂时性计算机可读存储介质。 所述存储介质存储由所述处理器执行的编程，其中所述编程在由所述处理器执行时配置所述PCE以接收对于单播或多播标签交换路径（LSP）的路径的请求，确定主路径和次要 /本地保护路径通过标签交换网络中的多个节点，并且向多个节点提供主路径和次/局部保护路径。

公开(公告)号：US20150103844A1

公开(公告)日：2015-04-16

申请号：US14511591

申请日：2014-10-10

Applicant: Futurewei Technologies, Inc.

Inventor： Qianglin Quintin Zhao ,  Katherine Zhao ,  Bisong Tao

IPC: H04L12/723 ,  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.

Abstract translation: 实施例一般涉及将系统从传统网络转换为启用软件定义网络（SDN）的系统和方法。 在一些实施例中，系统和方法可以包括使用路径计算元件（PCE）作为中央控制器。 传统网络与新型SDN网络之间的平滑过渡，特别是从成本影响评估的角度来看，可以使用现有网络的现有PCE组件来实现，作为SDN网络的中心控制器的一个选择，不仅实现 使集中控制器提供中央控制器所需功能的目标，同时也利用现有的PCE网络组件。

公开(公告)号：US20140161124A1

公开(公告)日：2014-06-12

申请号：US13750692

申请日：2013-01-25

Applicant: FUTUREWEI TECHNOLOGIES, INC.

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

IPC: H04L12/56

CPC classification number: H04L45/16 ,  H04L45/50

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的标签的冲突存在于 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。

公开(公告)号：US20140122683A1

公开(公告)日：2014-05-01

申请号：US14067704

申请日：2013-10-30

Applicant: FUTUREWEI TECHNOLOGIES, INC.

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

IPC: H04L12/24

CPC classification number: H04L41/5054 ,  H04L41/12 ,  H04L45/02 ,  H04L45/42 ,  H04L45/64

Abstract: Embodiments are provided herein to enable single level network abstraction for a service across one or more domains. The embodiments use a single network ID to identify a service and a corresponding virtual network topology across any number of domains at a physical network. A virtual network topology can be abstracted for each service, based on the physical underlying network topology. A network controller determines, for a service, the virtual network topology within a physical network, and binds the service to the virtual network topology via a virtual network ID, which defines a single forwarding domain of the virtual network topology across the physical network. The virtual network ID is then indicated to the nodes of the virtual network topology, thus enabling the nodes to identify and forward traffic for the service, within the single forwarding domain, between end clients from edge to edge of the physical network.

Abstract translation: 本文提供了实现方式，以实现跨一个或多个域的服务的单级网络抽象。 这些实施例使用单个网络ID来识别物理网络上的任何数量的域上的服务和对应的虚拟网络拓扑。 可以基于物理底层网络拓扑为每个服务抽象虚拟网络拓扑。 网络控制器为物理网络中的虚拟网络拓扑确定服务，并通过虚拟网络ID将服务绑定到虚拟网络拓扑，该虚拟网络ID定义跨物理网络的虚拟网络拓扑的单个转发域。 然后将虚拟网络ID指示到虚拟网络拓扑的节点，从而使节点能够在单个转发域内，在从物理网络的边缘到边缘的终端客户端之间识别和转发业务的流量。

公开(公告)号：US20140119367A1

公开(公告)日：2014-05-01

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: H04L12/46

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。

公开(公告)号：US20130336191A1

公开(公告)日：2013-12-19

申请号：US13918358

申请日：2013-06-14

Applicant: Futurewei Technologies, Inc.

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

IPC: H04L12/18

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。