公开(公告)号：US10575365B2

公开(公告)日：2020-02-25

申请号：US16001731

申请日：2018-06-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongcui Li ,  Hui Ni

IPC: H04W76/30 ,  H04W4/02

Abstract: A PDN connection release method is disclosed. For one example, a user equipment may determine a service transmission status of a target packet data network PDN connection, location area information corresponding to the target PDN connection, and a current location of the user equipment, and may release the target PDN connection when the user equipment determines that a first condition is met. The target PDN connection can be any one or more of a plurality of PDN connections maintained by the user equipment. The first condition may include the service transmission status of the target PDN connection indicates that service transmission has stopped, and a location area indicated by the location area information corresponding to the target PDN connection does not include the current location of the user equipment.

公开(公告)号：US10560337B2

公开(公告)日：2020-02-11

申请号：US15449618

申请日：2017-03-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hua Li ,  Xiaoyi Zhang ,  Wenhui Li ,  Hui Ni

IPC: H04L1/12 ,  H04L12/24 ,  G06F9/455 ,  H04L12/931 ,  H04L29/12 ,  H04L29/08

Abstract: A method for implementing a software-defined network (SDN) includes receiving, by an SDN controller, virtual network information sent by a cloud computing platform, where the virtual network information includes a correspondence between information about a virtual machine (VM) and information about a server running the VM. The method also includes acquiring, by the SDN controller, physical network information, where the physical network information includes a correspondence between information about a top-of-rack (TOR) switch and the information about the server. Additionally, the method includes acquiring, by the SDN controller, a correspondence between the information about the VM and the information about the TOR switch according to the virtual network information and the physical network information.

公开(公告)号：US20200028801A1

公开(公告)日：2020-01-23

申请号：US16530558

申请日：2019-08-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyong Tan ,  Hui Ni ,  Hui Cai ,  Weihua Hu

IPC: H04L12/947 ,  H04W76/12 ,  H04L12/14 ,  H04M15/00 ,  H04W4/24 ,  H04L12/741

Abstract: Embodiments of the present invention provide a method for processing information, a forwarding plane device and a control plane device. The method includes: receiving a data packet, and extracting the data packet's characteristic information; searching for context information corresponding to the data packet's characteristic information; buffering or discarding the data packet if the context information is not found; and sending an event reporting message to a gateway control plane device, wherein the event reporting message carries the data packet's characteristic information, so that the gateway control plane device acquires the context information corresponding to the data packet's characteristic information forwarding of the data packet to the greatest extent.

公开(公告)号：US20190356594A1

公开(公告)日：2019-11-21

申请号：US16526518

申请日：2019-07-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyong Tan ,  Hui Ni ,  Hui Cai

IPC: H04L12/803 ,  H04L12/24 ,  H04L12/851

Abstract: A method includes receiving, by an ingress network element, a data packet, wherein an ingress flow entry is stored in the ingress network element. The ingress flow entry comprises flow description information and a processing network element indication, where the flow description information matches the data packet, and the processing network element indication is used to indicate a processing network element that processes the data packet after the ingress network element. The method further includes sending, by the ingress network element, the data packet to the processing network element according to the ingress flow entry, so that the processing network element performs context processing on the data packet.

公开(公告)号：US20190280970A1

公开(公告)日：2019-09-12

申请号：US16421883

申请日：2019-05-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weihua Hu ,  Hui Ni ,  Shiyong Tan

IPC: H04L12/721 ,  H04L12/715 ,  H04L12/64 ,  H04L12/24

Abstract: A packet processing method and an apparatus, where the method includes determining a to-be-installed flow entry and packet sending information, and sending, to a switch, a flow entry installation message carrying the to-be-installed flow entry and the packet sending information, such that the switch obtains the to-be-installed flow entry and the packet sending information from the flow entry installation message, installs the flow entry, and sends a packet according to the packet sending information. In the present disclosure, a controller sends a flow entry installation message carrying a to-be-installed flow entry and a packet sending message, where the to-be-installed flow entry and a to-be-sent packet are simultaneously sent, such that a switch simultaneously receives the to-be-installed flow entry and the to-be-sent packet, and performs flow entry installation and packet sending.

公开(公告)号：US20190166634A1

公开(公告)日：2019-05-30

申请号：US16198616

申请日：2018-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hui Ni ,  Yongcui Li

IPC: H04W76/12 ,  H04W64/00

Abstract: A communication control method and a related network element are provided. The communication control method includes: receiving a control request related to a user terminal that accesses a network through a first base station, and determining, based on the control request, a first service network element providing a service for the user terminal; determining a first forwarding plane network element providing a forwarding service for the user terminal; and establishing a service packet forwarding path between the first service network element and the first forwarding plane network element to transmit a service packet of the user terminal. Technical solutions in embodiments of the present invention provide an end-to-end service packet routing mechanism.

公开(公告)号：US20190109784A1

公开(公告)日：2019-04-11

申请号：US16211718

申请日：2018-12-06

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Weihua Hu ,  Hui Ni ,  Shiyong Tan

IPC: H04L12/721 ,  H04L12/24 ,  H04L12/64 ,  H04L12/715

Abstract: The present invention provides a packet processing method and an apparatus. The method includes: determining a to-be-installed flow entry and packet sending information; and sending, to a switch, a flow entry installation message carrying the to-be-installed flow entry and the packet sending information, so that the switch obtains the to-be-installed flow entry and the packet sending information from the flow entry installation message, installs the flow entry, and sends a packet according to the packet sending information. In the present invention, a controller sends a flow entry installation message carrying a to-be-installed flow entry and a packet sending message, where the to-be-installed flow entry and a to-be-sent packet are simultaneously sent, so that a switch simultaneously receives the to-be-installed flow entry and the to-be-sent packet, and performs flow entry installation and packet sending, thereby reducing unnecessary signaling exchange, and improving efficiency of flow entry installation and packet sending.

公开(公告)号：US10250501B2

公开(公告)日：2019-04-02

申请号：US15410885

申请日：2017-01-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hui Ni

IPC: H04L12/741 ,  H04L12/725 ,  H04L12/721 ,  H04L12/715

Abstract: A service packet forwarding method and an apparatus, where the method includes receiving, by a classifier, a first service packet, generating, by the classifier, a second service packet according to a packet characteristic, and sending, by the classifier, the second service packet to a forwarder. Each piece of service chain information indicates a route of one service chain, a service packet carries multiple pieces of service chain information, and routes of multiple service chains constitute an entire path for forwarding the service packet.

公开(公告)号：US20180248789A1

公开(公告)日：2018-08-30

申请号：US15965217

申请日：2018-04-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hui Ni

IPC: H04L12/721 ,  G06Q10/06 ,  H04L12/851 ,  H04L12/931 ,  H04L12/54 ,  H04L12/24 ,  H04L29/06

Abstract: A method includes receiving, by a forwarder, rule modification information sent by a controller. The rule modification information includes rule description match information and action instruction modification information. The rule description match information is used to determine a to-be-modified processing rule. Rule description information of the to-be-modified processing rule accords with the rule description match information, and the action instruction modification information is used to instruct to modify an action instruction specified in an instruction set of the to-be-modified processing rule. The method also includes modifying, by the forwarder, when the forwarder determines that rule description information of a first processing rule meets the rule description match information, an action instruction specified in an instruction set of the first processing rule according to the action instruction modification information.

公开(公告)号：US09998364B2

公开(公告)日：2018-06-12

申请号：US14966307

申请日：2015-12-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shiyong Tan ,  Hui Ni ,  Hui Cai

IPC: H04L12/721 ,  H04L12/64 ,  H04L29/08 ,  H04L12/24

CPC classification number: H04L45/38 ,  H04L12/6418 ,  H04L41/0806 ,  H04L41/0893 ,  H04L67/327

Abstract: Embodiments of the present invention provide a method for processing a packet in a software-defined network (Software-Defined Network), where the method is performed by a forwarder, and the method includes: receiving an input packet; determining a flow to which the input packet belongs according to the input packet; determining a context identifier set corresponding to the flow to which the input packet belongs according to a first correspondence between flows and context identifier sets, where a context identifier set corresponding to each flow in the first correspondence includes at least one context identifier; determining a context corresponding to the context identifier set according to a second correspondence between context identifiers and contexts; and processing the input packet according to the context corresponding to the context identifier set.