公开(公告)号：US20230015960A1

公开(公告)日：2023-01-19

申请号：US17947316

申请日：2022-09-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Zongpeng Du ,  Xiaodong Chang

IPC: H04L45/24 ,  H04L45/12 ,  H04L45/28 ,  H04L47/762

Abstract: A method and an apparatus for establishing a forwarding path, the method including obtaining, by a first network node, path information of a to-be-established forwarding path, where the path information comprises an identifier of a network node on the forwarding path and a transmission resource requirement that needs to be allocated by the network node to the forwarding path, and sending a path establishment request packet based on the path information, where a packet header of the path establishment request packet comprises the path information, and where the path establishment request packet triggers the network node to allocate a transmission resource to the forwarding path based on the transmission resource requirement.

公开(公告)号：US20220200893A1

公开(公告)日：2022-06-23

申请号：US17691637

申请日：2022-03-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junda Yao ,  Zhibo Hu ,  Jie Dong ,  Xinjun Chen

IPC: H04L45/00 ,  H04L45/42 ,  H04L45/021 ,  H04L45/24 ,  H04L45/12

Abstract: In a data transmission control method, one or more pieces of identification information are added to determine an interface resource object for forwarding a data packet on an interface of a network device. The added one or more pieces of identification information include one piece of global identification information. The global identification information may correspond to a network slice, and different network slices correspond to different values of global identification information. A global network identifier corresponds to one or more interface resource objects. One interface resource object may be occupied by one network slice alone, or one interface resource object may be jointly shared by a plurality of network slices.

公开(公告)号：US20220182315A1

公开(公告)日：2022-06-09

申请号：US17680872

申请日：2022-02-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xuesong Geng ,  Guoyi Chen ,  Shuping Peng ,  Jie Dong

IPC: H04L45/00 ,  H04L45/12 ,  H04L45/302 ,  H04L12/46

Abstract: A service packet transmission method includes: A control device delivers respective attribute information of at least two transmission paths to a first forwarding device. In this way, after obtaining traffic requirement information, the first forwarding device may determine, based on the traffic requirement information and the respective attribute information of the transmission paths, a first transmission path that meets a traffic requirement. Then, the first transmission path sends a received service packet to a second forwarding device through the first transmission path.

公开(公告)号：US20220038364A1

公开(公告)日：2022-02-03

申请号：US17500142

申请日：2021-10-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zongpeng Du ,  Jie Dong

IPC: H04L12/751 ,  H04L12/723

Abstract: A Segment Routing over Internet Protocol version 6 (SRv6)-based data processing method includes a first network device generating a slice locator, where the slice locator includes a target argument. The slice locator is used to identify an addressable destination address prefix in a slice supported by the first network device, and the target argument is used to indicate that the slice locator is associated with at least two slices supported by the first network device. The first network device sends the slice locator to a second network device, so that the second network device generates, based on the slice locator, at least two target slice locators corresponding to the at least two slices.

公开(公告)号：US11071017B2

公开(公告)日：2021-07-20

申请号：US16719052

申请日：2019-12-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Dong ,  Guoyi Chen

IPC: H04L12/24 ,  H04L12/741 ,  H04L12/751 ,  H04L12/911 ,  H04W4/50 ,  H04W16/04 ,  H04W16/12 ,  H04W28/02 ,  H04W28/16 ,  H04W28/26 ,  H04W40/24 ,  H04W48/18 ,  H04W76/11 ,  H04W76/25 ,  H04W84/04 ,  H04W88/12 ,  H04W88/14 ,  H04W88/18 ,  H04W92/02 ,  H04W92/14 ,  H04W92/24

Abstract: A forwarding entry generation method includes sending, by a controller, a plurality of resource allocation request messages to a plurality of network devices in a network slice, to trigger the plurality of network devices to allocate resources, where the resource allocation request message includes an identifier of the network slice and a resource that needs to be allocated by a corresponding network device to the network slice; receiving, by the controller, a plurality of resource allocation response messages including the identifier of the network slice and a segment identifier of a corresponding network device, and a resource allocated by each device belongs to the network slice; and generating, by the controller, a forwarding table corresponding to the network slice, where the forwarding table includes a forwarding entry for arriving at a network device in the network slice.

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：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：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。