公开(公告)号：US20210119912A1

公开(公告)日：2021-04-22

申请号：US17132755

申请日：2020-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zongpeng Du ,  Guoyi Chen ,  Jie Dong ,  Xinyuan Wang ,  Jun Gong

IPC: H04L12/741 ,  H04L12/721 ,  H04L29/02 ,  H04L12/52 ,  H04J3/16 ,  H04L12/46 ,  H04Q3/68 ,  G06K7/01 ,  H04L12/417 ,  H04L12/715

Abstract: A data sending method includes receiving, by a forwarding device using a first flexible Ethernet (FlexE) group and in multiple timeslots included in a first timeslot set, multiple first encoded data blocks from a physical coding sublayer (PCS), determining, by the forwarding device according to the timeslots included in the first timeslot set and the first FlexE group, a second FlexE group and multiple timeslots included in a second timeslot set, and sending, by the forwarding device, the first encoded data blocks using the second FlexE group and in the timeslots included in the second timeslot set.

公开(公告)号：US10965568B2

公开(公告)日：2021-03-30

申请号：US16411936

申请日：2019-05-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lianshu Zheng ,  Guoyi Chen

IPC: H04L12/26 ,  H04L12/761 ,  H04L12/733 ,  H04L12/723

Abstract: Embodiments of this application provide a bit-forwarding ingress router, a bit-forwarding router, and an OAM test method, and pertain to the field of multicast networks. A first BFR receives an OAM request packet from a BFIR; the first BFR determines, according to the OAM request packet, that a destination BFR corresponding to the OAM request packet is the first BFR; and the first BFR obtains a first OAM response packet according to an ID of the BFIR, and sends the first OAM response packet to the BFIR. According to the method and the apparatus that are provided in the embodiments of this application, a problem that a BFIR cannot diagnose or handle a transmission fault when the fault occurs during transmission of a multicast packet can be resolved, which helps implement connectivity testing by using an OAM packet and enables testing of multiple BFERs.

公开(公告)号：US10938527B2

公开(公告)日：2021-03-02

申请号：US16240782

申请日：2019-01-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zongpeng Du ,  Guoyi Chen ,  Jie Dong ,  Xinyuan Wang ,  Jun Gong

IPC: H04L5/00 ,  H04L12/723 ,  H04L12/413 ,  H04L12/709 ,  H04L12/913

Abstract: A forwarding table generation method is provided. The method includes: determining, by a forwarding device, a first timeslot set, where the first timeslot set includes multiple timeslots during which the forwarding device sends, to a first device by using a first flexible Ethernet group, multiple encoded data blocks generated by a physical coding sublayer; determining, by the forwarding device, a second timeslot set, where the second timeslot set includes multiple timeslots during which the forwarding device receives, by using a second FlexE group, the multiple encoded data blocks sent by a second device; and generating, by the forwarding device, a forwarding table, where the forwarding table includes a mapping relationship between the second FlexE group and the multiple timeslots included in the second timeslot set, and between the first FlexE group and the multiple timeslots included in the first timeslot set.

公开(公告)号：US20210014168A1

公开(公告)日：2021-01-14

申请号：US17035687

申请日：2020-09-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuesong Geng ,  Guoyi Chen

IPC: H04L12/841 ,  H04L12/741 ,  H04L12/727

Abstract: A controller obtains a forwarding latency requirement of a service flow and a destination address of the service flow, and determines a forwarding path that meets the forwarding latency requirement. The controller determines that an ingress node forwards a first cycle time number of a packet and an intermediate node forwards a second cycle time number of the packet, and separately determines a corresponding adjacent segment identifier. A label stack generated by the controller includes the adjacent segment identifier and the adjacent segment identifier. The controller sends the label stack to the ingress node, to trigger the ingress node to forward the packet within a period of time corresponding to the first cycle time number. The controller determines the forwarding path based on the forwarding latency requirement of the service flow, and generates a label stack corresponding to a forwarding time point.

公开(公告)号：US10791053B2

公开(公告)日：2020-09-29

申请号：US16018946

申请日：2018-06-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling Xu ,  Jie Dong ,  Guoyi Chen

IPC: H04L12/741 ,  H04L12/751 ,  H04L12/725 ,  H04L12/18 ,  H04L12/721

Abstract: An SFC-based communications method and system, and an apparatus are provided. The SFC includes a CF node, an SFF node, and an SF node, and the SFF node is connected to the SF node. The method includes: receiving, by the CF node, a first message from the SFF node; obtaining, by the CF node, network topology information of the SFC based on the first message; obtaining, by the CF node, an SFC forwarding table, where the SFC forwarding table is determined based on the network topology information of the SFC; and sending, by the CF node to the SFF node, a second message used to indicate the SFC forwarding table. In this way, a network topology of the SFC can be flexibly and efficiently discovered.

公开(公告)号：US10680942B2

公开(公告)日：2020-06-09

申请号：US15926872

申请日：2018-03-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shunwan Zhuang ,  Zhenbin Li ,  Shuanglong Chen ,  Guoyi Chen ,  Jia Che ,  Nan Wu

IPC: H04L12/723 ,  H04L12/24 ,  H04L12/46 ,  H04L12/911

Abstract: The present disclosure discloses a packet processing method, device, and system. The system includes: a controller, configured to: allocate a service label to a service processing manner of an FEC, establish a mapping relationship between the service label and the service processing manner, send the service label to a source node, and send the mapping relationship to a destination node; the source node, configured to: receive the service label sent by the controller, receive a first packet, insert the service label to the first packet to obtain a second packet, and send the second packet to the destination node; the destination node, configured to: receive the mapping relationship sent by the controller, receive the second packet sent by the source node, and pop the service label from the second packet according to the mapping relationship, to obtain the first packet.

公开(公告)号：US10419333B2

公开(公告)日：2019-09-17

申请号：US15449850

申请日：2017-03-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuefeng Lin ,  Enhui Liu ,  Guoyi Chen

IPC: H04L12/723 ,  H04L12/721 ,  H04L12/741 ,  H04L29/06

Abstract: Embodiments of the present application provide a method and an apparatus for compressing a label stack. The method includes: obtaining a first label stack corresponding to a forwarding path, where the first label stack comprises node labels corresponding to each node on the forwarding path; selecting a first node label from the first label stack, where when forwarding a packet, a node corresponding to the first node label is capable of encapsulating at least two layers of labels in the packet; replacing at least two adjacent labels located after the first node label in the first label stack with a first compression label, to generate a second label stack; and instructing a source node on the forwarding path to perform packet processing according to the second label stack. In this way, a length of a label stack pushed into the packet can be shortened.

公开(公告)号：US10116545B2

公开(公告)日：2018-10-30

申请号：US14813882

申请日：2015-07-30

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhiqiang Yu ,  Guoyi Chen ,  Lianshu Zheng

IPC: H04L12/26 ,  H04L12/741

Abstract: Embodiments of the present application provide a method, device, and system for processing an OAM packet, where the method for processing an OAM packet includes: receiving, by a first network device, an operation, administration and maintenance (OAM) instruction sent by an OAM server, where the OAM instruction carries first format information and a first sending target identifier, where the first format information is used for indicating an OAM packet format; and generating, by the first network device, a first OAM packet according to the first format information, and sending the first OAM packet to a network device indicated by the first sending target identifier. The method, device, and system for processing an OAM packet provided in the embodiments of the present application achieve adaptability to different OAM standards without changing of a hardware structure of a network device, and improve OAM processing flexibility.

公开(公告)号：US10063484B2

公开(公告)日：2018-08-28

申请号：US14980626

申请日：2015-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guoyi Chen

IPC: G01R31/08 ,  H04L12/815 ,  H04L12/723 ,  H04L12/913 ,  H04L12/46

CPC classification number: H04L47/22 ,  H04L12/4641 ,  H04L45/50 ,  H04L45/507 ,  H04L47/724 ,  H04L2012/4629

Abstract: A method, a device, and a system establish a traffic engineering label switched path, which can implement effective isolation between tenants or between services, to ensure security of tenant topology information or service topology information. The method includes: receiving, by an egress node, a resource reservation protocol-traffic engineering RSVP-TE-based Path message sent by an ingress node; determining, by the egress node, whether identification information of a TE LSP and owner-related information corresponding to the TE LSP are stored; and if it is determined that the identification information of the TE LSP and the owner-related information corresponding to the TE LSP are not stored, storing, by the egress node, a correspondence between the identification information of the TE LSP and the owner-related information, and sending an RSVP-TE-based resource reservation Resv message to the ingress node. The present application is applicable to the field of communications.

公开(公告)号：US09397925B2

公开(公告)日：2016-07-19

申请号：US14925954

申请日：2015-10-28

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Hongmiao Xia ,  Renhai Zhang ,  Guoyi Chen ,  Xingfeng Jiang

IPC: H04L12/721 ,  H04L12/751 ,  H04L12/715 ,  H04L12/723

CPC classification number: H04L45/12 ,  H04L45/02 ,  H04L45/04 ,  H04L45/32 ,  H04L45/50

Abstract: A method and an apparatus for advertising border connection information of autonomous system are disclosed. Moreover, the method includes: establishing and maintaining, by a border node of the autonomous system, the border connection information of the autonomous system; flooding the border connection information within the autonomous system; and receiving, by nodes of the autonomous system, the border connection information. The method and the apparatus for advertising border connection information of autonomous system of embodiments of the present invention may adapt to dynamic change of network topology, and dynamically advertise the border connection information of the autonomous system within the system in time, so as to optimize networks and improve quality of service of the networks.