公开(公告)号：US20210119895A1

公开(公告)日：2021-04-22

申请号：US17135317

申请日：2020-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cheng Li ,  Guoyi Chen

IPC: H04L12/26 ,  H04L12/749 ,  H04L12/741

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：US10904141B2

公开(公告)日：2021-01-26

申请号：US16240398

申请日：2019-01-04

Applicant: Huawei Technologies Co., Ltd.

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

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

Abstract: A data sending method, where the 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. The forwarding device does not need to process the first encoded data blocks in a conventional layer 2 or layer 3 forwarding mode. Therefore, a processing delay can be reduced, and a transmission delay can be reduced.

公开(公告)号：US10855574B2

公开(公告)日：2020-12-01

申请号：US16232854

申请日：2018-12-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Guoyi Chen ,  Zongpeng Du ,  Ling Xu

IPC: H04W4/00 ,  H04L12/727 ,  H04L12/751 ,  H04L12/721 ,  H04L12/707

Abstract: This application discloses a method for computing a forwarding path. The method includes: receiving, by a network device, notification packets separately sent by a plurality of forwarding nodes, where each notification packet includes interface forwarding delay information of the forwarding node that sends the notification packet, device forwarding delay information of the forwarding node, and a transmission delay of a link connected to the forwarding node; obtaining the interface forwarding delay information and the device forwarding delay information of each of the plurality of forwarding nodes, and obtaining a transmission delay of a link between the plurality of forwarding nodes; and computing a forwarding path between a first forwarding node and a second forwarding node, where a forwarding delay of the forwarding path meets a delay requirement of a service.

公开(公告)号：US20200228446A1

公开(公告)日：2020-07-16

申请号：US16830214

申请日：2020-03-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xuesong Geng ,  Guoyi Chen

IPC: H04L12/723 ,  H04L12/46 ,  H04L29/06 ,  H04L12/741 ,  H04L12/801 ,  H04L12/707 ,  H04L12/851

Abstract: A method for forwarding a packet, and a network device are provided. The method includes: receiving, a first packet, where the first packet includes first indication information, payload data, and a packet sequence number of the first packet in a data flow corresponding to the first packet; when the first network device determines that the first packet includes the first indication information, generating, a plurality of second packets based on the first packet, where each of the plurality of second packets includes the payload data, the packet sequence number, and second indication information; and separately forwarding, the plurality of second packets to a second network device over different forwarding paths in a plurality of forwarding paths.

公开(公告)号：US10313216B2

公开(公告)日：2019-06-04

申请号：US15639896

申请日：2017-06-30

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：US10230618B2

公开(公告)日：2019-03-12

申请号：US14757676

申请日：2015-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Guoyi Chen

IPC: H04L12/717 ,  H04L12/751

Abstract: The present disclosure discloses a path request method. The method includes: receiving, by a stateful path computation element Stateful PCE, a path computation request message sent by a path computation client PCC, where the path computation request message includes first attribute information, and the first attribute information is used to designate an acquisition manner of a path requested by the PCC; acquiring, by the Stateful PCE, information of a path that conforms to a request of the PCC according to the first attribute information; and sending a path computation reply message to the PCC, where the path computation reply message includes the information of the path that conforms to the request of the PCC. Embodiments of the present disclosure also provide a stateful path computation element and a path computation client.

公开(公告)号：US09521072B2

公开(公告)日：2016-12-13

申请号：US13890170

申请日：2013-05-08

Applicant: Huawei Technologies Co., LTD

Inventor： Rui Gu ,  Guoyi Chen ,  Jie Dong ,  Qing Zeng

IPC: H04L12/28 ,  H04L12/723 ,  H04L12/715

CPC classification number: H04L45/507 ,  H04L45/04

Abstract: A method and network device for distributing Multi-Protocol Label Switching (MPLS) labels are provided by the present invention. The method for distributing the MPLS labels includes: a first device receives a Border Gateway Protocol (BGP) protocol message transmitted from a second device, wherein the BGP protocol message carries a service identifier of the second device; the first device establishes, according to the service identifier of the first device and the service identifier of the second device, a corresponding relationship between the first device and the second device; the first device distributes a MPLS label for the corresponding relationship. The present invention realizes that the MPLS labels are distributed for some type of the specific logical relationship between the two nodes in the BGP protocol, so that the network devices running the BGP protocol can efficiently obtain the MPLS label corresponding to the specific logical relationship.

Abstract translation: 本发明提供了一种用于分发多协议标签交换（MPLS）标签的方法和网络设备。 分发MPLS标签的方法包括：第一设备接收从第二设备发送的边界网关协议（BGP）协议消息，其中BGP协议消息携带第二设备的服务标识符; 第一设备根据第一设备的服务标识符和第二设备的服务标识符建立第一设备和第二设备之间的对应关系; 第一个设备分配相应关系的MPLS标签。 本发明实现了对于BGP协议中的两个节点之间的特定逻辑关系的某些类型的MPLS标签的分配，使得运行BGP协议的网络设备可以有效地获得与特定逻辑关系对应的MPLS标签。

公开(公告)号：US09350612B2

公开(公告)日：2016-05-24

申请号：US14297830

申请日：2014-06-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lianshu Zheng ,  Guoyi Chen

IPC: H04L12/24 ,  H04L29/08 ,  H04L12/755 ,  H04L12/723 ,  H04L12/775 ,  H04L12/773

CPC classification number: H04L41/0846 ,  H04L41/0672 ,  H04L41/0893 ,  H04L45/021 ,  H04L45/50 ,  H04L45/58 ,  H04L45/60 ,  H04L67/1095

Abstract: A method, a network device, and a system for synchronization between network devices are provided. The method includes: establishing, by a first network device, an inband synchronization channel to a second network device in a MPLS-TP network, where the inband synchronization channel is a channel on a data plane, and the first network device and the second network device are included in a same backup group; sending, a first synchronization packet to the second network device through the inband synchronization channel, where the first synchronization packet carries synchronization information of the first network device, and the synchronization information of the first network device includes configuration information or status information of the first network device. The present disclosure can implement synchronization between network devices on an MPLS-TP network that does not have a control plane.

Abstract translation: 提供了一种方法，网络设备和用于网络设备之间的同步的系统。 该方法包括：通过第一网络设备将带内同步信道建立到MPLS-TP网络中的第二网络设备，其中带内同步信道是数据平面上的信道，以及第一网络设备和第二网络 设备包含在同一个备份组中; 通过带内同步信道向第二网络设备发送第一同步分组，其中第一同步分组携带第一网络设备的同步信息，第一网络设备的同步信息包括第一网络的配置信息或状态信息 设备。 本公开可以实现不具有控制平面的MPLS-TP网络上的网络设备之间的同步。

公开(公告)号：US20160134509A1

公开(公告)日：2016-05-12

申请号：US14757676

申请日：2015-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Guoyi Chen

IPC: H04L12/751

CPC classification number: H04L45/02 ,  H04L45/42

Abstract: The present disclosure discloses a path request method. The method includes: receiving, by a stateful path computation element Stateful PCE, a path computation request message sent by a path computation client PCC, where the path computation request message includes first attribute information, and the first attribute information is used to designate an acquisition manner of a path requested by the PCC; acquiring, by the Stateful PCE, information of a path that conforms to a request of the PCC according to the first attribute information; and sending a path computation reply message to the PCC, where the path computation reply message includes the information of the path that conforms to the request of the PCC. Embodiments of the present disclosure also provide a stateful path computation element and a path computation client.

Abstract translation: 本公开公开了一种路径请求方法。 该方法包括：通过状态路径计算元件状态PCE接收由路径计算客户端PCC发送的路径计算请求消息，其中路径计算请求消息包括第一属性信息，并且第一属性信息用于指定采集 PCC要求的路径的方式; 由有状态PCE根据第一属性信息获取符合PCC的请求的路径的信息; 并向PCC发送路径计算应答消息，其中路径计算应答消息包括符合PCC的请求的路径的信息。 本公开的实施例还提供了有状态路径计算元件和路径计算客户端。

公开(公告)号：US20140185462A1

公开(公告)日：2014-07-03

申请号：US14198095

申请日：2014-03-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xinchun Guo ,  Wei Cao ,  Guoyi Chen

IPC: H04L12/26 ,  H04L12/24

CPC classification number: H04L43/0823 ,  H04L41/0631 ,  H04L41/0677 ,  H04L41/0681 ,  H04L43/0811 ,  H04L43/10 ,  H04L45/28

Abstract: A troubleshooting method includes sending a forward detection message to at least one node on a path to be detected. The forward detection message carries information about a forward path to be detected and information about a backward path to be detected. Faults are detected according to a backward detection message returned by the at least one node.