公开(公告)号：US10135636B2

公开(公告)日：2018-11-20

申请号：US15274144

申请日：2016-09-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanlong Jiang ,  Lehong Niu ,  Hengjun Zhu

IPC: H04L12/64 ,  H04L12/24 ,  H04L12/707 ,  H04L12/741 ,  H04L29/12 ,  H04L29/08

Abstract: The present application discloses a method for generating forwarding information. The method includes: determining, by a controller, a first SFE and a second SFE that are used to forward a service stream, where the first SFE and the second SFE are on a service function chain corresponding to the service stream; generating, by the controller, first forwarding information for the first SFE and generating second forwarding information for the second SFE; and sending, by the controller, the first forwarding information to the first SFE and sending the second forwarding information to the second SFE. According to the method for generating forwarding information, the controller generates forwarding information for the SFE, so that a service chaining technology can be applied to a service environment in which a large quantity of services and a large quantity of service processing function units exist.

公开(公告)号：US20180242267A1

公开(公告)日：2018-08-23

申请号：US15961532

申请日：2018-04-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Jinchun Xu ,  Xian Liu

IPC: H04W56/00 ,  H04L12/24 ,  H04J3/06 ,  H04L12/26

CPC classification number: H04W56/001 ,  H04J3/0673 ,  H04J3/0679 ,  H04J3/0697 ,  H04L41/0681 ,  H04L41/12 ,  H04L43/10 ,  H04L45/02 ,  H04L45/42 ,  H04W24/04 ,  H04W56/00 ,  H04W84/00

Abstract: A method, node, and system for detecting a clock synchronization path, where the method includes generating, by a first node, a synchronization detection request message, sending the synchronization detection request message to a second node, where the synchronization detection request message includes an identifier (ID) of the first node, generating, by the second node, a synchronization detection response message according to the synchronization detection request message, sending the synchronization detection response message to the first node, where the synchronization detection response message includes clock topology information of the second node and the ID of the first node, and obtaining, by the first node, a first detection result according to the synchronization detection response message, where the first detection result indicates a status of a clock synchronization path between the first node and the second node.

公开(公告)号：US20140321845A1

公开(公告)日：2014-10-30

申请号：US14310884

申请日：2014-06-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Hongyu Li

IPC: H04Q11/00 ,  H04L12/24 ,  H04B10/032

CPC classification number: H04Q11/0067 ,  H04B10/032 ,  H04B10/272 ,  H04L41/0663 ,  H04L67/12 ,  H04Q2011/0081

Abstract: The present invention is applicable to the field of PONs and provides a PON protection method and apparatus. A first transmission path is established between a first OLT and a far-end network node, and a second transmission path is established between a second OLT and the far-end network node. When it is found that a fault occurs on an optical path of the first OLT, a PON port corresponding to the optical path is switched to a corresponding PON port on the second OLT, and a fault notification is sent to the far-end network node. After receiving the fault notification, the far-end network node switches a data flow of the PON port corresponding to the optical path from the first transmission path to the second transmission path.

Abstract translation: 本发明适用于PON领域，并提供PON保护方法和装置。 在第一OLT和远端网络节点之间建立第一传输路径，并且在第二OLT与远端网络节点之间建立第二传输路径。 当发现在第一OLT的光路上发生故障时，对应于光路的PON端口被切换到第二OLT上的相应PON端口，并且故障通知被发送到远端网络节点 。 远端网络节点收到故障通知后，将与第一传输路径相对应的PON端口的数据流切换到第二传输路径。

公开(公告)号：US20230379246A1

公开(公告)日：2023-11-23

申请号：US18363262

申请日：2023-08-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Fan Yang ,  Tianran Zhou

IPC: H04L45/00 ,  H04L45/74 ,  H04L45/28

CPC classification number: H04L45/566 ,  H04L45/74 ,  H04L45/28

Abstract: A protection switching method provides a manner of transferring a protection switching message on an SRv6 data plane. In this manner, a first node can switch, after a fault occurs on an end-to-end transmission path of forward service traffic of the first node, a transmission path of the forward service traffic of the first node to another end-to-end transmission path, and send the forward service traffic through the transmission path after switching. In this manner, the first node only needs to store information about the another transmission path, and an intermediate node does not need to maintain a large amount of path state information and path configuration information.

公开(公告)号：US20220158947A1

公开(公告)日：2022-05-19

申请号：US17528555

申请日：2021-11-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang

IPC: H04L47/34

Abstract: A method for processing a service flow in a packet network and applied to a network device group including a first network device and a second network device coupled to the first network device includes the first network device: obtaining a first upstream service flow; receiving a second upstream service flow from the second network device; obtaining a third upstream service flow based on a first reference sequence number, a sequence number included in each upstream data packet in the first upstream service flow, and a sequence number included in each upstream data packet in the second upstream service flow, where a sequence number included in any upstream data packet in the third upstream service flow is greater than the first reference sequence number; and sending the third upstream service flow to a next hop node.

公开(公告)号：US11271818B2

公开(公告)日：2022-03-08

申请号：US17137405

申请日：2020-12-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhongjian Zhang ,  Yuanlong Jiang

IPC: G06F15/173 ,  H04L41/12 ,  H04L41/0816 ,  H04L41/0893

Abstract: This application discloses a method for obtaining a network slice. The method includes: receiving, by a control device, a slice request sent by a user, where the slice request includes an identifier, and the identifier is used to identify an isolation level of a slice requested by the user; obtaining, by the control device, an isolation type of the slice based on the identifier; and creating, by the control device, a network slice based on the isolation type of the slice and a resource topology, where the resource topology is used to describe a network topology and isolation capabilities of N elements in the network topology, the N elements include at least one of a node and a link, N is an integer greater than or equal to 1, and the network slice includes a node and a link that are required for implementing the slice.

公开(公告)号：US20210400553A1

公开(公告)日：2021-12-23

申请号：US17466498

申请日：2021-09-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Yali Wang

IPC: H04W36/12 ,  H04W4/021 ,  H04W4/02 ,  H04W76/12 ,  H04W36/00

Abstract: A cell site gateway (CSG) determining method includes a first device obtains, before a first moment, a location range in which a mobile device is located at the first moment; and the first device obtains an identifier of at least one target CSG based on the location range before the first moment, where the at least one target CSG can provide downlink data transmission for the mobile device at the first moment. The target CSG that can provide the downlink data transmission for the mobile device at the first moment is further determined through estimation of the location range in which the mobile device is located at a subsequent first moment.

公开(公告)号：US11201826B2

公开(公告)日：2021-12-14

申请号：US16545218

申请日：2019-08-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang

IPC: H04L12/26 ,  H04L12/801 ,  H04L12/723

Abstract: A method for processing a service flow in a packet network, where the method is applied to a network device group including a first network device and a second network device connected to the first network device. The method includes: the first network device obtains a first upstream service flow, and receives a second upstream service flow from the second network device; the first network device obtains a third upstream service flow based on a first reference sequence number, a sequence number included in each upstream data packet in the first upstream service flow, and a sequence number included in each upstream data packet in the second upstream service flow, where a sequence number included in any upstream data packet in the third upstream service flow is greater than the first reference sequence number; and sends the third upstream service flow to a next hop node.

公开(公告)号：US20210226897A1

公开(公告)日：2021-07-22

申请号：US17222201

申请日：2021-04-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang

IPC: H04L12/851 ,  H04L12/723 ,  H04L12/26 ,  H04L12/801 ,  H04L12/913 ,  H04L12/911

Abstract: A method and an apparatus for processing a low-latency service flow, where the method includes that a first forwarding device obtains a low latency identifier corresponding to a first service flow, and obtains a second data packet based on the first data packet and the low latency identifier after determining that a received first data packet belongs to the first service flow, where the second data packet includes the first data packet and the low latency identifier, the low latency identifier instructing a forwarding device that receives the first service flow to forward the first service flow in a low-latency forwarding mode, and the low-latency forwarding mode is a mode in which fast forwarding of the first service flow is implemented under dynamic control, and the first forwarding device sends the second data packet to a second forwarding device in the low-latency forwarding mode.

公开(公告)号：US10361954B2

公开(公告)日：2019-07-23

申请号：US15430795

申请日：2017-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Yuanlong Jiang

IPC: G06F16/00 ,  G06F16/951 ,  H04L29/08 ,  H04L12/741 ,  H04L12/725 ,  H04L12/46 ,  H04L12/717 ,  H04L12/733 ,  H04L29/06

Abstract: A method and an apparatus for processing a modified packet. A first routing device obtains a first packet sent by a second routing device, where the first packet carries a first correspondence, creates a forwarding entry that includes the first correspondence, receives a modified packet and determines an ID of a destination service function (SF) of the modified packet, queries the forwarding entry according to the ID of the destination SF, and determines that an SF identified by the ID of the destination SF is an SF connected to a second routing device, and forwards the modified packet to the second routing device.