公开(公告)号：US10965581B2

公开(公告)日：2021-03-30

申请号：US15982489

申请日：2018-05-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Hengjun Zhu ,  Min Zha

IPC: H04L12/751 ,  H04L12/721 ,  H04L12/26 ,  H04L12/727

Abstract: A method and network node for obtaining a target transmission path, where the method includes obtaining, by a first network node in a network domain, topology information of a plurality of network nodes on each path between an ingress node and an egress node that are in the network domain, obtaining, by the first network node, a transmission delay of each path according to the topology information, where the transmission delay of each path includes a sum of physical link delays between all network nodes on each path and node residence times of all the network nodes on each path, and determining, by the first network node, the target transmission path according to the transmission delay of each path.

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：US09356802B2

公开(公告)日：2016-05-31

申请号：US13937938

申请日：2013-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Liangyuan Li

IPC: H04L12/46 ,  H04L12/721

CPC classification number: H04L12/4675 ,  H04L45/68

Abstract: Embodiments of the present invention disclose a method, an apparatus, and a system for selecting a network device. The method includes: receiving, by a second network device, a network device selection message sent by a first network device, where the network device selection message contains a VLAN mapping capability identifier of the first network device; and selecting, by the second network device, according to the VLAN mapping capability identifier and local VLAN mapping capability, a network device for executing VLAN mapping. By using the technical solutions provided in the embodiments of the present invention, execution of VLAN mapping for a bidirectional pseudo wire (PW) between two network devices on a same network device may be implemented, and there are only two VLAN identifiers on the bidirectional PW, thereby ensuring consistency of VLAN mapping and making it simpler and easier to maintain and detect the PW.

Abstract translation: 本发明的实施例公开了一种用于选择网络设备的方法，装置和系统。 该方法包括：由第二网络设备接收由第一网络设备发送的网络设备选择消息，其中网络设备选择消息包含第一网络设备的VLAN映射能力标识符; 并根据VLAN映射能力标识和本地VLAN映射能力，由第二网络设备选择一个用于执行VLAN映射的网络设备。 通过使用本发明实施例提供的技术方案，可以实现在同一网络设备上的两个网络设备之间的双向伪线（PW）的VLAN映射的执行，双向PW上只有两个VLAN标识符 ，从而确保VLAN映射的一致性，使PW更易于维护和检测。

公开(公告)号：US12244684B2

公开(公告)日：2025-03-04

申请号：US18317697

申请日：2023-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Fanshun Meng ,  Jingfei Lyu ,  Jingfeng Chen

IPC: H04L7/00

Abstract: A method includes: a first network device obtains a synchronization mode indication and synchronization information, where the synchronization mode indication indicates a target network device to perform synchronization based on the synchronization information. The first network device sends the synchronization mode indication and the synchronization information through a network that supports FlexE. A second network device receives the synchronization mode indication and the synchronization information through a network that supports FlexE. The second network device performs synchronization based on the synchronization mode indication and the synchronization information.

公开(公告)号：US11943148B2

公开(公告)日：2024-03-26

申请号：US17243673

申请日：2021-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanlong Jiang

IPC: H04L47/32 ,  H04L45/24 ,  H04L45/50 ,  H04L47/17

CPC classification number: H04L47/32 ,  H04L45/24 ,  H04L45/507 ,  H04L47/17

Abstract: Embodiments of this application provide a traffic flow processing method. The method includes: generating and configuring first configuration information for a first edge node and second configuration information for the first relay node, where the first configuration information is used to: replicate a data packet included in a received traffic flow to obtain a first data packet and a second data packet, output, to a first relay node, the obtained first data packet, and output, to a second relay node, the obtained second data packet; generating and configuring second configuration information for the first relay node, where the second configuration information is used to: replicate the first data packet to obtain a third data packet and a fourth data packet, output, to the second relay node, the obtained third data packet, and obtain and output a first received data packet between the obtained fourth data packet and a fifth data packet received from the second relay node.

公开(公告)号：US11757754B2

公开(公告)日：2023-09-12

申请号：US17191041

申请日：2021-03-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Hengjun Zhu ,  Min Zha

IPC: G06F15/173 ,  H04L45/02 ,  H04L45/00 ,  H04L43/0852 ,  H04L45/121 ,  H04L45/12

CPC classification number: H04L45/02 ,  H04L43/0852 ,  H04L45/121 ,  H04L45/123 ,  H04L45/70

Abstract: A method and network node for obtaining a target transmission path, where the method includes obtaining, by a first network node in a network domain, topology information of a plurality of network nodes on each path between an ingress node and an egress node that are in the network domain, obtaining, by the first network node, a transmission delay of each path according to the topology information, where the transmission delay of each path includes a sum of physical link delays between all network nodes on each path and node residence times of all the network nodes on each path, and determining, by the first network node, the target transmission path according to the transmission delay of each path.

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：US11184193B2

公开(公告)日：2021-11-23

申请号：US16821585

申请日：2020-03-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanlong Jiang ,  Liangyuan Li

IPC: H04L12/46 ,  H04L12/721

Abstract: An apparatus includes a program instructing hardware and a computer readable storage medium coupled to the hardware and storing programming instructions for execution by the hardware. The programming instructions instruct the hardware to: receive a network device selection message sent by a first network device, where the network device selection message contains a virtual local area network (VLAN) mapping capability identifier of the first network device and a device identifier of the first network device; when determining that both the apparatus and the first network device have VLAN mapping capability according to local VLAN mapping capability and the VLAN mapping capability identifier of the first network device, select a network device for executing VLAN mapping according to sizes or a sequence of a local device identifier and the device identifier of the first network device.

公开(公告)号：US11140085B2

公开(公告)日：2021-10-05

申请号：US16597401

申请日：2019-10-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanlong Jiang ,  Hengjun Zhu ,  Hongguang Guan

IPC: H04L12/815 ,  H04L12/851 ,  H04L12/841 ,  H04L12/805

Abstract: This application relates to the field of communications technologies, and discloses a service forwarding method and a network device that performs such method. The method includes: forwarding, by a first network device, a data packet of a first service to a second network device in a period (T1); and if the data volume of the forwarded first service reaches a threshold, forwarding, by the first network device, a data packet of a second service to the second network device. The first service is a low-latency service, and the second service is a non-low-latency service. In addition, the period (T1) is determined based on a delay allowed by a device for forwarding the data packet of the first service, and the threshold is a value determined based on a maximum transmission rate of the first service.