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1. 再颁专利

USRE47260E1 System and method for point to multipoint inter-domain MPLS traffic engineering path calculation 有权
公开(公告)号：USRE47260E1
公开(公告)日：2019-02-26
申请号：US14591916
申请日：2015-01-07
申请人： Futurewei Technologies, Inc.
发明人： Qianglin Quintin Zhao , Huaimo Chen
IPC分类号： H04L12/28 , H04L12/18 , H04L12/715 , H04L12/717 , H04L12/723 , H04L12/721 , H04L12/753 , H04L12/761
摘要： A system comprising a plurality of path computation elements (PCEs) configured to communicate with an ingress node, jointly compute a core tree for an inter-domain point-to-multipoint (P2MP) tree across a plurality of network domains, and independently compute a plurality of sub-trees in at least some of the network domains, wherein the core tree connects the ingress node to a boundary node (BN) in each one of the network domains that have a destination node and each sub-tree connects the BN to a plurality of destination nodes in one of the network domains that have a destination node.

2. 发明授权

US09137146B2 Enhanced upstream label assignment (ULA) mechanism for point to multi-point (P2MP) and/or multi-point to multi-point (MP2MP) facility protection 有权
公开(公告)号：US09137146B2
公开(公告)日：2015-09-15
申请号：US13750692
申请日：2013-01-25
申请人： Futurewei Technologies, Inc.
发明人： Qianglin Quintin Zhao , Katherine Zhao , Tao Zhou , Ying Chen
IPC分类号： H04L12/28 , H04L12/56 , H04L12/761 , H04L12/723
CPC分类号： H04L45/16 , H04L45/50
摘要： 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.

3. 发明申请

US20210168070A1 Using PCE as SDN Controller 有权
公开(公告)号：US20210168070A1
公开(公告)日：2021-06-03
申请号：US17107670
申请日：2020-11-30
申请人： Futurewei Technologies, Inc.
发明人： Qianglin Quintin Zhao , Katherine Zhao , Bisong Tao
IPC分类号： H04L12/723 , H04L12/717 , H04L12/759
摘要： 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.

4. 发明申请

US20190273679A1 Using PCE as SDN Controller 审中-公开
公开(公告)号：US20190273679A1
公开(公告)日：2019-09-05
申请号：US16419192
申请日：2019-05-22
申请人： Futurewei Technologies, Inc.
发明人： Qianglin Quintin Zhao , Katherine Zhao , Bisong Tao
IPC分类号： H04L12/723 , H04L12/717 , H04L12/759
摘要： 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.

5. 发明授权

US09929919B2 System and method for virtual network abstraction and switching 有权
公开(公告)号：US09929919B2
公开(公告)日：2018-03-27
申请号：US14067704
申请日：2013-10-30
申请人： FutureWei Technologies, Inc.
发明人： Qianglin Quintin Zhao , Renwei Li , Lin Han , Katherine Zhao
IPC分类号： H04L12/24 , H04L12/715 , H04L12/751 , H04L12/717
CPC分类号： H04L41/5054 , H04L41/12 , H04L45/02 , H04L45/42 , H04L45/64
摘要： 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.

6. 发明申请

US20170289020A1 PCEP Extension for PCECC Support of Distributed Computing, Multiple Services, and Inter-Domain Routing 审中-公开
公开(公告)号：US20170289020A1
公开(公告)日：2017-10-05
申请号：US15474708
申请日：2017-03-30
申请人： Futurewei Technologies, Inc.
发明人： Qianglin Quintin Zhao
IPC分类号： H04L12/707 , H04L12/751 , H04L12/723 , H04L12/741
CPC分类号： H04L45/24 , H04L45/02 , H04L45/04 , H04L45/42 , H04L45/50 , H04L45/74
摘要： A path computation element (PCE) central controller (PCECC) comprising a memory comprising executable instructions and a processor coupled to the memory and configured to execute the instructions. Executing the instructions causes the processor to receive a request to compute a path through a network, the request comprising a plurality of computational tasks, divide the computational tasks into a plurality of groups of computational tasks, transmit at least some of the plurality of groups of computational tasks to a plurality of path computation clients (PCCs) for computation by the PCCs, and receive, from the PCCs, computation results corresponding to the plurality of groups of computational tasks.

7. 发明申请

US20130336192A1 mRSVP-TE Based Fast Reroute in Facility (1:N) Protection Mode 有权
标题翻译：基于mRSVP-TE的快速重路由（1：N）保护模式
公开(公告)号：US20130336192A1
公开(公告)日：2013-12-19
申请号：US13918373
申请日：2013-06-14
申请人： Futurewei Technologies, Inc.
发明人： Katherine Zhao , Ying Chen , Qianglin Quintin Zhao , Tao Zhou , Renwei Li , Lin Han
IPC分类号： H04L12/18
CPC分类号： H04L12/1863 , H04L45/16 , H04L45/22 , H04L45/28 , H04L45/50 , H04L47/15 , H04L47/724 , H04W4/06 , H04W72/005
摘要： An apparatus comprising a memory, and a processor coupled to the memory and configured to transmit a backup Label Switched Path (LSP) multicast Resource Reservation Protocol-Traffic Engineering (mRSVP-TE) path request (PATH) message upstream, wherein the backup LSP PATH message requests reservation of a first backup LSP to protect a first primary LSP configured to transmit multicast data, and wherein the backup LSP PATH message is transmitted to support a facility mode one to many (1:N) fast reroute protocol.
摘要翻译：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备用标签交换路径（LSP）组播资源预留协议 - 流量工程（mRSVP-TE）路径请求（PATH））消息，其中所述备份LSP路径消息请求预留第一备份LSP以保护被配置为传送多播数据的第一主LSP，并且其中备份LSP PATH消息被发送以支持设施模式一对多（1：N）快速重路由协议。

8. 发明申请

US20130088953A1 Failure Detection in the Multiprotocol Label Switching Multicast Label Switched Path's End-to-End Protection Solution 有权
标题翻译：多协议标签交换多播标签交换路径的端到端保护解决方案中的故障检测
公开(公告)号：US20130088953A1
公开(公告)日：2013-04-11
申请号：US13649979
申请日：2012-10-11
申请人： FUTUREWEI TECHNOLOGIES, INC.
发明人： Qianglin Quintin Zhao , Ying Chen
IPC分类号： H04L12/24 , H04L12/26
CPC分类号： H04L45/28 , H04L43/10 , H04L45/22 , H04L45/48 , H04L45/50
摘要： In one aspect, the invention includes, in a root node along a secondary label switching path, a computer program product comprising computer executable instructions stored on a non-transitory medium that when executed by a processor cause the root node to perform the following: establish a first data plane based failure detection session having an inactive status along a first label switching path (LSP) with at least one leaf node, receive a predetermined number of notification messages from the leaf node, wherein the predetermined number of notification messages indicate the failure of a second data plane based failure detection session along a second LSP from a second processor to the leaf node, and change the status of the first data plane based failure detection session to active along the first LSP upon receipt of the predetermined number of notification messages.
摘要翻译：在一个方面，本发明在沿着次级标签交换路径的根节点中包括计算机程序产品，其包括存储在非暂时介质上的计算机可执行指令，当由处理器执行时，该计算机可执行指令使根节点执行以下操作：建立第一基于数据平面的故障检测会话具有沿着具有至少一个叶节点的第一标签交换路径（LSP）的非活动状态，从叶节点接收预定数量的通知消息，其中预定数量的通知消息指示故障基于从第二处理器到叶节点的第二LSP的基于第二数据层的故障检测会话，并且在接收到预定数量的通知消息时，将基于第一数据平面的故障检测会话的状态沿着第一LSP改变为活动。

9. 发明申请

US20230126161A1 Using PCE as SDN Controller 有权
公开(公告)号：US20230126161A1
公开(公告)日：2023-04-27
申请号：US17946277
申请日：2022-09-16
申请人： Futurewei Technologies, Inc.
发明人： Qianglin Quintin Zhao , Katherine Zhao , Bisong Tao
IPC分类号： H04L45/50 , H04L45/42 , H04L45/028
摘要： 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.

10. 发明授权

US10855582B2 Using PCE as SDN controller 有权
公开(公告)号：US10855582B2
公开(公告)日：2020-12-01
申请号：US16419192
申请日：2019-05-22
申请人： Futurewei Technologies, Inc.
发明人： Qianglin Quintin Zhao , Katherine Zhao , Bisong Tao
IPC分类号： H04L12/723 , H04L12/717 , H04L12/759
摘要： 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.

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