公开(公告)号：US20210273866A1

公开(公告)日：2021-09-02

申请号：US17325513

申请日：2021-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Lehong Niu ,  Xuhui Bai

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/733 ,  H04L12/721

Abstract: A service chain fault detection method includes: determining, by a service forwarding entity (SFE), to communicate with a first service function (SF) node on a service chain after obtaining a first fault tracing detection request packet, wherein the first fault tracing detection request packet comprises a path identifier (ID), and the path ID is used to identify a path of the service chain; obtaining, by the SFE, an ID of the first SF node; and sending, by the SFE, a first fault tracing detection response packet to the device for initiating fault detection, wherein the first fault tracing detection response packet comprises the path ID and the ID of the first SF node.

公开(公告)号：US11032174B2

公开(公告)日：2021-06-08

申请号：US16238938

申请日：2019-01-03

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weiping Xu ,  Lehong Niu ,  Xuhui Bai

IPC: H04L12/26 ,  H04L12/24 ,  H04L12/733 ,  H04L12/721

Abstract: This application discloses a service chain fault detection method and an apparatus. The method includes: determining, by a service forwarding entity (SFE), to communicate with a first service function (SF) node on a service chain after obtaining a first fault tracing detection request packet, wherein the first fault tracing detection request packet comprises a path identifier (ID), and the path ID is used to identify a path of the service chain; obtaining, by the SFE, an ID of the first SF node; and sending, by the SFE, a first fault tracing detection response packet to the device for initiating fault detection, wherein the first fault tracing detection response packet comprises the path ID and the ID of the first SF node.

公开(公告)号：US10893019B2

公开(公告)日：2021-01-12

申请号：US16296682

申请日：2019-03-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Hengjun Zhu ,  Shucheng Liu

IPC: H04L29/12

Abstract: The present invention discloses an address management method and apparatus, to help dynamically adjust an address resource and improve address resource utilization. The method includes: establishing a communication connection to a network device based on a specified routing protocol; receiving an address pool status message sent by the network device; determining, based on the address pool status message, whether an address pool of the network device is in an address insufficient state or an address abundant state; and sending a first routing message to the network device by using the communication connection if the address pool of the network device is in the address insufficient state; or sending a second routing message to the network device by using the communication connection if the address pool of the network device is in the address abundant state.

公开(公告)号：US20190238500A1

公开(公告)日：2019-08-01

申请号：US16296682

申请日：2019-03-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Hengjun Zhu ,  Shucheng Liu

IPC: H04L29/12

CPC classification number: H04L61/2007 ,  H04L61/2061

Abstract: The present invention discloses an address management method and apparatus, to help dynamically adjust an address resource and improve address resource utilization. The method includes: establishing a communication connection to a network device based on a specified routing protocol; receiving an address pool status message sent by the network device; determining, based on the address pool status message, whether an address pool of the network device is in an address insufficient state or an address abundant state; and sending a first routing message to the network device by using the communication connection if the address pool of the network device is in the address insufficient state,; or sending a second routing message to the network device by using the communication connection if the address pool of the network device is in the address abundant state.

公开(公告)号：US20170155582A1

公开(公告)日：2017-06-01

申请号：US15430795

申请日：2017-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Yuanlong Jiang

IPC: H04L12/741 ,  H04L29/06 ,  H04L12/733 ,  G06F17/30

CPC classification number: H04L45/74 ,  G06F16/00 ,  G06F16/951 ,  H04L12/4633 ,  H04L45/20 ,  H04L45/306 ,  H04L45/42 ,  H04L45/54 ,  H04L67/327 ,  H04L69/22

Abstract: A method and an apparatus for processing a modified packet. A first routing device obtains a first packet sent by a second routing device, where the first packet carries a first correspondence, creates a forwarding entry that includes the first correspondence, receives a modified packet and determines an ID of a destination service function (SF) of the modified packet, queries the forwarding entry according to the ID of the destination SF, and determines that an SF identified by the ID of the destination SF is an SF connected to a second routing device, and forwards the modified packet to the second routing device.

公开(公告)号：US11831526B2

公开(公告)日：2023-11-28

申请号：US17325513

申请日：2021-05-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Lehong Niu ,  Xuhui Bai

IPC: H04L43/0811 ,  H04L41/0686 ,  H04L45/00

CPC classification number: H04L43/0811 ,  H04L41/0686 ,  H04L45/20 ,  H04L45/26

Abstract: A service chain fault detection method includes: determining, by a service forwarding entity (SFE), to communicate with a first service function (SF) node on a service chain after obtaining a first fault tracing detection request packet, wherein the first fault tracing detection request packet comprises a path identifier (ID), and the path ID is used to identify a path of the service chain; obtaining, by the SFE, an ID of the first SF node; and sending, by the SFE, a first fault tracing detection response packet to the device for initiating fault detection, wherein the first fault tracing detection response packet comprises the path ID and the ID of the first SF node.

公开(公告)号：US11343167B2

公开(公告)日：2022-05-24

申请号：US17135460

申请日：2020-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Yuanlong Jiang

IPC: H04L12/751 ,  H04L45/02 ,  H04L41/0668 ,  H04L45/00

Abstract: This application provides a method for obtaining a FIB of a device on a network. The network includes a verification system and a plurality of devices, and a first device is one of the plurality of devices. The first device receives a request message sent by the verification system, where the request message carries a command for obtaining a FIB of the first device that is generated at a specified time. The first device obtains the FIB or a FIB snapshot of the first device that is generated at the specified time. The first device adds the obtained FIB or FIB snapshot to a response message, and sends the response message to the verification system.

公开(公告)号：US11336475B2

公开(公告)日：2022-05-17

申请号：US16830911

申请日：2020-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Chunrong Li ,  Yongjian Hu ,  Weiping Xu

IPC: H04L12/18 ,  H04L41/0654

Abstract: A multicast packet transmission method, apparatus, and system, where the method is applied to a multicast ring network and the method includes receiving, by a first network node in the multicast ring network through a first path in a clockwise direction of the multicast ring network, a first multicast packet from a second network node in the multicast ring network, receiving, by the first network node through a second path in an anticlockwise direction of the multicast ring network, a second multicast packet from the second network node, where a payload of the first multicast packet is the same as a payload of the second multicast packet, and forwarding, by the first network node, the first multicast packet or the second multicast packet to at least one multicast destination device connected to the first network node.

公开(公告)号：US20210152461A1

公开(公告)日：2021-05-20

申请号：US17135460

申请日：2020-12-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weiping Xu ,  Yuanlong Jiang

IPC: H04L12/751 ,  H04L12/24 ,  H04L12/771 ,  H04L12/741

Abstract: This application provides a method for obtaining a FIB of a device on a network. The network includes a verification system and a plurality of devices, and a first device is one of the plurality of devices. The first device receives a request message sent by the verification system, where the request message carries a command for obtaining a FIB of the first device that is generated at a specified time. The first device obtains the FIB or a FIB snapshot of the first device that is generated at the specified time. The first device adds the obtained FIB or FIB snapshot to a response message, and sends the response message to the verification system.

公开(公告)号：US20200228361A1

公开(公告)日：2020-07-16

申请号：US16830911

申请日：2020-03-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Chunrong Li ,  Yongjian Hu ,  Weiping Xu

IPC: H04L12/18 ,  H04L12/24

Abstract: A multicast packet transmission method, apparatus, and system, where the method is applied to a multicast ring network and the method includes receiving, by a first network node in the multicast ring network through a first path in a clockwise direction of the multicast ring network, a first multicast packet from a second network node in the multicast ring network, receiving, by the first network node through a second path in an anticlockwise direction of the multicast ring network, a second multicast packet from the second network node, where a payload of the first multicast packet is the same as a payload of the second multicast packet, and forwarding, by the first network node, the first multicast packet or the second multicast packet to at least one multicast destination device connected to the first network node.