公开(公告)号：US20230275830A1

公开(公告)日：2023-08-31

申请号：US18312198

申请日：2023-05-04

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xia CHEN ,  Bing LIU ,  Ling XU ,  Jianwei MAO

IPC: H04L45/302 ,  H04L47/125 ,  H04L45/741

CPC classification number: H04L45/306 ,  H04L47/125 ,  H04L45/741

Abstract: This application discloses a packet forwarding method, an apparatus, and a system, and belongs to the field of communication technologies. The method includes: A first node receives a first packet. The first node sends a second packet to a second node based on the first packet, where a source address of the second packet is obtained by translating a source address of the first packet, a destination address of the second packet is a destination address of the first packet, a packet payload of the second packet is a packet payload of the first packet, the second packet further includes a session identifier, and the session identifier is used by the second node to forward the second packet.

公开(公告)号：US20230216775A1

公开(公告)日：2023-07-06

申请号：US18174849

申请日：2023-02-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ling XU ,  Bing LIU ,  Min LIU ,  Xia CHEN ,  Yu ZHOU

IPC: H04L45/12 ,  H04L45/30 ,  H04L45/52

CPC classification number: H04L45/12 ,  H04L45/30 ,  H04L45/52

Abstract: A packet forwarding method. In this method, a forwarding node receives a packet, obtains a target service resource status advertised by each service node in a plurality of service nodes, selects a target service node from the plurality of service nodes based on the target service resource status advertised by the service node, and forwards the packet to the target service node. In other words, the forwarding node can sense a service resource status advertised by the service node, and the service resource status can indicate a resource usage status of a service resource managed by the service node. An actual processing capability of the service node can be sensed based on the resource usage status.

公开(公告)号：US20190028381A1

公开(公告)日：2019-01-24

申请号：US16137817

申请日：2018-09-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhenbin LI ,  Shunwan ZHUANG ,  Xia CHEN ,  Nan WU ,  Qiandeng LIANG

IPC: H04L12/715 ,  H04L12/741 ,  H04L12/713 ,  H04L12/46 ,  H04L29/06

CPC classification number: H04L45/04 ,  H04L12/4641 ,  H04L29/06 ,  H04L45/54 ,  H04L45/586 ,  H04L45/64 ,  H04L69/03

Abstract: Embodiments of the present invention provide a Flow Specification-based communications method, device, and system. The method includes: obtaining, by a controller, a requirement indicating that a first resource on a forwarding device needs to be associated with a second resource on the forwarding device; and sending, by the controller, a Border Gateway Protocol Flow Specification BGP Flow Spec protocol packet according to the requirement, where the BGP Flow Spec protocol packet includes a network layer reachability information field and an extended community attribute field, the network layer reachability information field carries characteristic information of the first resource, the extended community attribute field carries a global identifier GID used to indicate the second resource, and the BGP Flow Spec protocol packet is used to instruct to associate the first resource with the second resource.

公开(公告)号：US20190081885A1

公开(公告)日：2019-03-14

申请号：US16185994

申请日：2018-11-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengmei WANG ,  Yong LONG ,  Xia CHEN

IPC: H04L12/761 ,  H04L12/727 ,  H04L12/729 ,  H04L12/18 ,  H04L12/803

CPC classification number: H04L45/16 ,  H04L12/18 ,  H04L12/1854 ,  H04L45/121 ,  H04L45/125 ,  H04L45/50 ,  H04L45/64 ,  H04L47/125

Abstract: A path establishment method and a controller are disclosed. The method includes: when detecting a path establishment request for establishing P2MP TE, computing a P2MP TE path by using head node information and tail node information included in the path establishment request; identifying a target branch node in the P2MP TE path, and obtaining a label of the target branch node; and when a third node corresponding to the head node information and the target branch node are not a same node, sending first information to the third node, and sending second information to the target branch node, where the second information is used to instruct the target branch node to generate a multicast forwarding entry. Embodiments of this application can reduce complexity of establishing the P2MP TE path.

公开(公告)号：US20240048477A1

公开(公告)日：2024-02-08

申请号：US18486253

申请日：2023-10-13

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Ling XU ,  Xia CHEN ,  Shuping PENG ,  Peng HOU ,  Yu ZHOU

IPC: H04L45/302 ,  H04L47/80 ,  H04L47/76 ,  H04L45/02

CPC classification number: H04L45/306 ,  H04L47/803 ,  H04L47/76 ,  H04L45/04

Abstract: A packet forwarding method, apparatus, and system, and a computer-readable storage medium are disclosed, and pertain to the field of communication technologies. After receiving a packet sent by a second device, a first device determines a target service node based on indication information and an application service identifier that are in the packet, where a service capability of the target service node matches the indication information, and a target application service corresponding to the application service identifier is deployed in the target service node. Then, the first device sends the packet to the target service node. The indication information is carried in the packet sent by the device, so that a forwarding device can send the packet to a service node whose service capability matches the indication information. In this way, differentiated application services are provided for devices of different levels, and flexibility of task scheduling is high.

公开(公告)号：US20180205642A1

公开(公告)日：2018-07-19

申请号：US15923866

申请日：2018-03-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhenbin LI ,  Xia CHEN ,  Nan WU ,  Shunwan ZHUANG ,  Qiandeng LIANG

IPC: H04L12/723 ,  H04L12/717 ,  H04L12/947 ,  H04L12/707

CPC classification number: H04L45/507 ,  H04L45/24 ,  H04L45/42 ,  H04L45/50 ,  H04L45/74 ,  H04L49/25

Abstract: A method for allocating a global label is provided, including: receiving, by a controller, a first message sent by a forwarding apparatus, where the first message carries a first label range, multiple labels included in the first label range are a subset of multiple labels included in a label space of the forwarding apparatus, and the first label range is not equal to the label space of the forwarding apparatus; and allocating, by the controller, a global label to the forwarding apparatus according to the first label range carried in the first message, where the global label is a label in the first label range. In addition, a method for obtaining a global label, a controller, and a forwarding apparatus are further provided. The foregoing solutions improve efficiency of global label allocation.

公开(公告)号：US20190140949A1

公开(公告)日：2019-05-09

申请号：US16221568

申请日：2018-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Nan WU ,  Shunwan ZHUANG ,  Hui NI ,  Zhenbin LI ,  Xia CHEN

IPC: H04L12/749 ,  H04L12/751 ,  H04L12/24 ,  H04L12/717

Abstract: Embodiments of the present invention disclose a path determining method, apparatus, and system. In a hybrid network including one controller for implementing a control function, the controller may separately obtain network topology information of a first network and a second network of different network types by using a same control channel protocol. When the controller obtains a path determining requirement for the data transmission path, because the controller has the network topology information of the first network and the second network, during computation of the data transmission path, the controller can determine a path computation result including transmission path parts of the first network and the second network, without performing additional information exchange with another device, and send the path computation result to the first network device. In this way, planning efficiency of the data transmission path is improved.