公开(公告)号：US11894998B2

公开(公告)日：2024-02-06

申请号：US18065460

申请日：2022-12-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lianshu Zheng ,  Guoyi Chen

IPC: H04L43/0811 ,  H04L43/00 ,  H04L45/16 ,  H04L45/00 ,  H04L45/50

CPC classification number: H04L43/0811 ,  H04L43/00 ,  H04L45/16 ,  H04L45/20 ,  H04L45/50

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：US11876883B2

公开(公告)日：2024-01-16

申请号：US18152015

申请日：2023-01-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Guoyi Chen

IPC: H04L69/324 ,  H04L43/0829 ,  H04L43/0852 ,  H04L45/74 ,  H04L45/64 ,  H04L45/50 ,  H04L45/00 ,  H04L43/08

CPC classification number: H04L69/324 ,  H04L43/0835 ,  H04L43/0858 ,  H04L45/74

Abstract: A packet processing method, a network node, and a system includes obtaining, by a first network node, a first packet that includes a segment list, where the segment list includes a segment identifier of a network node on a path used to forward the first packet, obtaining, by the first network node, a segment identifier of a second network node from the segment list, where the second network node is a next-hop segment node of the first network node on the path, replacing, by the first network node, a destination address of the first packet with the segment identifier of the second network node, and adding a network performance parameter of the first network node to the segment list to generate a second packet, and sending, by the first network node, the second packet to the second network node.

公开(公告)号：US20240007376A1

公开(公告)日：2024-01-04

申请号：US18465395

申请日：2023-09-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Guoyi Chen

IPC: H04L43/0852 ,  H04L43/18 ,  H04L45/741 ,  H04L45/745

CPC classification number: H04L43/0858 ,  H04L45/745 ,  H04L45/741 ,  H04L43/18

Abstract: A network performance parameter sending method includes: obtaining, by a first network node, a segment identifier of a second network node in a segment list of a packet, where the second network node is a next-hop segment node of the first network node on a forwarding path of the packet; and adding, by the first network node, a network performance parameter of the first network node to the segment list, and then sending the packet to the second network node. In a process of forwarding the packet by using the segment list in the packet, the first network node uses the segment list to carry the network performance parameter of the network node.

公开(公告)号：US20230224230A1

公开(公告)日：2023-07-13

申请号：US18065460

申请日：2022-12-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lianshu Zheng ,  Guoyi Chen

IPC: H04L43/0811 ,  H04L43/00 ,  H04L45/16 ,  H04L45/50 ,  H04L45/00

CPC classification number: H04L43/0811 ,  H04L43/00 ,  H04L45/16 ,  H04L45/50 ,  H04L45/20

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：US11477109B2

公开(公告)日：2022-10-18

申请号：US16285817

申请日：2019-02-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ling Xu ,  Jie Dong ,  Guoyi Chen

IPC: H04L45/02 ,  H04L45/64 ,  H04L45/60

Abstract: A method for synchronizing topology information in a service function chain (SFC) network, where the SFC network includes at least one classifier (CF) and at least one service function forwarder (SFF). The method includes that a first network element in the at least two routing network elements establishes a Border Gateway Protocol (BGP) connection to at least one second network element other than the first network element in the at least two routing network elements, where the first network element is any one of the at least two routing network elements, and the first network element sends a first BGP update message to the at least one second network element, where the first BGP update message includes topology information of the first network element such that the at least one second network element obtains the topology information of the first network element.

公开(公告)号：US11336577B2

公开(公告)日：2022-05-17

申请号：US16937563

申请日：2020-07-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

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

IPC: H04L12/803 ,  H04L47/125 ,  H04L45/00 ,  H04L45/7453 ,  H04L47/70 ,  H04L45/50

Abstract: The present disclosure discloses a method and an apparatus for implementing load sharing. The method includes: for a congested first link on a first forwarding node, selecting, by a network device, a packet flow forwarded by using the first link; selecting a second link that may be used to forward the packet flow and that is not congested after available bandwidth of the second link is occupied by the packet flow, where the second link is a link between the first forwarding node and a second forwarding node; selecting a first hash gene corresponding to the second link; determining that a third link is not in a congested state after available bandwidth of the third link is occupied by the packet flow; and saving the first hash gene in a source node of the packet flow, where the third link is a link that is on the second forwarding node.

公开(公告)号：US20220094636A1

公开(公告)日：2022-03-24

申请号：US17542813

申请日：2021-12-06

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：US20210250281A1

公开(公告)日：2021-08-12

申请号：US17240040

申请日：2021-04-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Guoyi Chen

IPC: H04L12/717 ,  H04L12/721 ,  H04L12/749 ,  H04L12/751 ,  H04L12/725

Abstract: A system and network devices for packet processing, a network device including a processor and instructions for receiving a first packet sent by a second network node, the first packet including a format of a segment identifier of the second network node describing a length and a location of each field in the segment identifier, obtaining the format based on the first packet, the segment identifier having a first field, and including a determined value of the first field in the segment identifier in a second packet sent to the second network node, the value of the first field in the segment identifier being determined based on a segment routing policy and the format, and the determined value of the first field indicating to the second network node to process the second packet.

公开(公告)号：US10999194B2

公开(公告)日：2021-05-04

申请号：US16279401

申请日：2019-02-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changjiang Yan ,  Shunwan Zhuang ,  Nan Wu ,  Guoyi Chen ,  Zhenbin Li ,  Baohua Song

IPC: H04L12/741 ,  H04L12/715 ,  H04L12/803 ,  H04L12/851

Abstract: An information synchronization method includes sending, by a controller, a first message to a network device, where the first message carries control routing protocol (CRP) routing entry information, and is used to advertise a CRP route, and the first message includes first identification information, and after receiving the first message, storing, by a forwarding device, the CRP routing entry information into a CRP routing table of the network device as indicated by the first identification information. Hence, because a route advertised by the controller and a route advertised using a routing protocol between forwarding devices are stored in different routing tables, a related application of the route advertised using the routing protocol between the forwarding devices is not affected.

公开(公告)号：US20210058322A1

公开(公告)日：2021-02-25

申请号：US17094529

申请日：2020-11-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuesong Geng ,  Guoyi Chen

IPC: H04L12/741 ,  H04L12/841 ,  H04L12/851

Abstract: A packet sending method, a network node, and a system, where a controller obtains a forwarding latency requirement of a service flow and a destination address of the service flow, determines a forwarding path that meets the forwarding latency requirement, and determines a number of a first cycle time in which an ingress node forwards a packet and a number of a second cycle time in which an intermediate node forwards the packet. The controller sends a first entry to the ingress node. The first entry includes a sequence number of the packet and the first cycle time number. The controller sends a second entry to the intermediate node. The second entry includes the sequence number of the packet and the second cycle time number.