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    Lossless bandwidth adjustment method, device and system
    12.
    发明授权
    Lossless bandwidth adjustment method, device and system 有权
    无损带宽调整方法，设备和系统

    公开(公告)号：US09270375B2

    公开(公告)日：2016-02-23

    申请号：US13871750

    申请日：2013-04-26

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yi Lin

    IPC: H04B10/27 ,  H04J3/16 ,  H04L12/913

    CPC classification number: H04B10/27 ,  H04J3/1652 ,  H04L47/724

    Abstract: A lossless bandwidth adjustment method is provided, includes: A downstream node of an ODUflex path receives a request message from an upstream node of the ODUflex path, where the request message is used for requesting lossless adjustment of a bandwidth of the ODUflex path; the downstream node searches according to the tunnel identifier to obtain bandwidth information before adjustment of the ODUflex path, compares the bandwidth information before adjustment with the bandwidth information after adjustment, determines the number of tributary slots that need to be adjusted for a link between the downstream node and an adjacent upstream node, and selects a tributary slot that needs to be adjusted; indicates, through a label, a tributary slot after adjustment of the adjacent upstream node or the selected tributary slot that needs to be adjusted, and sends a tributary slot adjustment command to a data plane.

    Abstract translation: 提供了一种无损带宽调整方法，包括：ODUflex路径的下游节点从ODUflex路径的上游节点接收请求消息，其中请求消息用于请求无损调整ODUflex路径的带宽; 下游节点根据隧道标识符进行搜索，在调整ODUflex路径之前获取带宽信息，将调整前的带宽信息与调整后的带宽信息进行比较，确定下游链路需要调整的支路槽数 节点和相邻上游节点，并选择需要调整的支路时隙; 在调整相邻上游节点或所选择的支路时隙之后通过标签指示支路时隙，并向数据平面发送支路时隙调整命令。

    Service orchestration method and apparatus, and server
    13.
    发明授权
    Service orchestration method and apparatus, and server 有权

    公开(公告)号：US11178233B2

    公开(公告)日：2021-11-16

    申请号：US16442459

    申请日：2019-06-15

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zhijiang Gao ,  Yi Lin ,  Xin Liu

    IPC: G06F15/173 ,  H04L29/08 ,  H04L12/24 ,  G06F9/50 ,  H04L12/715

    Abstract: Embodiments can provide a service orchestration method and apparatus, and a server. In the service orchestration method, a service flowchart can be obtained. The service flowchart may include a plurality of operation model identifiers and a logical connection relationship among the plurality of operation model identifiers. The logical connection relationship may be an execution sequence in the service flowchart. In this method, a scheduling parameter corresponding to each operation model identifier can be obtained. When the scheduling parameter indicates a live network resource for executing the service flowchart, a live network status can be obtained by using a control plane. Based on the obtained live network status, whether the live network resource can be obtained can be verified. When the verification succeeds, based on the logical connection relationship and the scheduling parameter that corresponds to each operation model identifier, executable code for executing the service flowchart can be generated.

    SERVICE PATH PROTECTION METHOD, CONTROLLER, DEVICE AND SYSTEM
    17.
    发明申请
    SERVICE PATH PROTECTION METHOD, CONTROLLER, DEVICE AND SYSTEM 审中-公开
    服务路径保护方法，控制器，设备和系统

    公开(公告)号：US20160182363A1

    公开(公告)日：2016-06-23

    申请号：US15058783

    申请日：2016-03-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Gang Li ,  Yi Lin ,  Jianrui Han

    IPC: H04L12/707 ,  H04L29/08 ,  H04L12/24

    Abstract: Embodiments of the present invention provide a service path protection method, a controller, a device and a system. The method includes: receiving, by an end node of a protection path, a path selection instruction sent by an SDN controller, wherein the path selection instruction comprises a service path and protection path activation type, forwarding relationships respectively of a service path and the protection path in the end node; activating at least one forwarding relationship according to the service path and protection path activation type; and when a fault occurs in the service path, updating the at least one forwarding relationship according to the service path and protection path activation type. The embodiments of the present invention relate to the field of communications technologies and resolve a problem that in an SDN technology, when a fault occurs in a service path, a protection path cannot be used.

    Abstract translation: 本发明的实施例提供了一种服务路径保护方法，控制器，设备和系统。 该方法包括：由保护路径的终端节点接收由SDN控制器发送的路径选择指令，其中路径选择指令包括服务路径和保护路径激活类型，分别转发业务路径和保护 路径在末端节点; 根据服务路径和保护路径激活类型激活至少一个转发关系; 并且当所述业务路径发生故障时，根据所述业务路径和保护路径激活类型更新所述至少一个转发关系。 本发明的实施例涉及通信技术领域，并且解决了在SDN技术中当服务路径发生故障时不能使用保护路径的问题。

    Data Frame Sending Method and Network Device
    18.
    发明公开
    Data Frame Sending Method and Network Device 审中-公开

    公开(公告)号：US20230254245A1

    公开(公告)日：2023-08-10

    申请号：US18189401

    申请日：2023-03-24

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Gang Xie ,  Hao Li ,  Yi Lin

    IPC: H04L45/50 ,  H04B10/27 ,  H04L45/00

    CPC classification number: H04L45/50 ,  H04B10/27 ,  H04L45/22

    Abstract: Embodiments of this application provide a data frame sending method and a network device. The method includes: A first node obtains routing label stack information of a first path, where the first path is used to transmit a service, and the routing label stack information indicates each node on the first path to establish a channel of the service on the node of the first path. The first node inserts the routing label stack information and service attribute information into a payload area of a first data frame, where the service attribute information indicates each node on the first path to configure a resource for the service. The first node sends the first data frame.

    Network path computation method, apparatus, and system
    19.
    发明授权
    Network path computation method, apparatus, and system 有权

    公开(公告)号：US10666562B2

    公开(公告)日：2020-05-26

    申请号：US15236347

    申请日：2016-08-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Haomian Zheng ,  Xian Zhang ,  Yi Lin

    IPC: H04L12/721 ,  H04L12/733 ,  H04L12/26 ,  H04L12/723 ,  H04L12/707 ,  H04L12/703

    Abstract: Embodiments of the present invention provide a network path computation method, apparatus and system, where the method includes: sending, by a first node, a path computation request to a first path computation element PCE, where the path computation request includes a resource sharing object, and a head node and a last node of a first label switched path LSP; and receiving, by the first node, a path computation result that is returned by the first PCE and that is obtained by means of computation according to the resource sharing object, and establishing a second path from the head node to the last node according to the path computation result. According to the network path computation method, apparatus, and system provided in the embodiments of the present invention, link resource utilization can be improved.

    Method for assigning and processing a label in an optical network, optical communication device, and optical communication system
    20.
    发明授权
    Method for assigning and processing a label in an optical network, optical communication device, and optical communication system 有权

    公开(公告)号：US10334335B2

    公开(公告)日：2019-06-25

    申请号：US15643258

    申请日：2017-07-06

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yi Lin ,  Xiaobing Zi

    IPC: H04Q11/00 ,  H04J3/00 ,  H04J3/16 ,  H04L12/927 ,  H04L12/723

    Abstract: The present invention discloses a method for assigning and processing a label in an optical network. The method includes: learning that a label switched path is required to be established in an optical network; generating a label, in which the label is used for indicating that a first optical channel data unit is multiplexed to a second optical channel data unit; the label includes a tributary slot type indication field that is used for indicating a tributary slot type of the second optical channel data unit, and the label further includes a tributary slot assignment indication field that is used for indicating a tributary slot occupied in the second optical channel data unit into which the first optical channel data unit is multiplexed; and sending the label to a node on the label switched path by a signaling message of GMPLS.

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