公开(公告)号：US12063155B2

公开(公告)日：2024-08-13

申请号：US17859387

申请日：2022-07-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongwei He ,  Yonglong Fang ,  Qi Yu

IPC: H04L45/00 ,  H04L12/46

CPC classification number: H04L45/38 ,  H04L12/4633 ,  H04L45/566

Abstract: A first network device of a plurality of network devices is provided. The first network device is configured to receive a first data packet from a second site; search a flow table stored in the first network device for a target flow entry whose flow identifier is of a first data flow, each entry comprises a flow identifier and a corresponding outbound interface identifier, the target flow entry is created when the first site sends a second data flow to the second site, a source address of the second data flow is a destination address of the first data flow, and a destination address of the second data flow is a source address of the first data flow; and if the target flow entry is found, send the first data packet through an interface corresponding to an outbound interface identifier in the target flow entry.

公开(公告)号：US11252129B2

公开(公告)日：2022-02-15

申请号：US16581826

申请日：2019-09-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weiping Xu ,  Hua Long ,  Hongwei He ,  Shucheng Liu ,  Yuanlong Jiang

IPC: H04L29/12 ,  H04L12/46 ,  H04L12/721

Abstract: An embodiment provides a packet transmission method and apparatus, to resolve a problem that occurs when a packet cannot traverse a NAT device when VTEPs communicate with each other through the NAT device. The method is applied to a VXLAN including a first VTEP, a second VTEP, and a NAT device. The method includes: performing, by the first VTEP, VXLAN encapsulation on a first packet, obtaining a second packet; sending, by the first VTEP, the second packet to the second VTEP through the NAT device; and performing, by the second VTEP, VXLAN decapsulation on the received second packet, to obtain the first packet. The first packet is a packet to be sent by the first VTEP, a destination port number of the second packet is obtained based on a destination IP address of the second packet, and a source port number of the second packet is a preset port number.

公开(公告)号：US20240235994A1

公开(公告)日：2024-07-11

申请号：US18614229

申请日：2024-03-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongwei He ,  Cheng Sheng

IPC: H04L45/00 ,  H04L45/02 ,  H04L45/741

CPC classification number: H04L45/566 ,  H04L45/04 ,  H04L45/741

Abstract: This application provides a packet processing method, a network device, and a network system, and pertains to the field of communication technologies. In the method provided in this application, an intermediate node updates a source IP address of a packet based on an IP address that belongs to a local end in an endpoint IP address of a connection, and updates a destination IP address of the packet based on an IP address that belongs to a remote end in the endpoint IP address of the connection. Therefore, in a scenario in which an SR path crosses underlay transport networks in a plurality of different routing domains, a problem that a packet is discarded because a source IP address is always an IP address of a head end and URPF check fails is avoided.

公开(公告)号：US20230370366A1

公开(公告)日：2023-11-16

申请号：US18316114

申请日：2023-05-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiajia Dong ,  Zhibo Hu ,  Cheng Sheng ,  Zhenbin Li ,  Hongwei He ,  Lin Dong

IPC: H04L45/302 ,  H04L45/00

CPC classification number: H04L45/302 ,  H04L45/70

Abstract: A packet transmission method, a transmission control method, an apparatus, and a system are disclosed. A SR path includes a first network node and a second network node. There are a plurality of communication links between the first network node and the second network node. After obtaining a first packet, the first network node determines a first communication link based on a first link quality identifier carried in the first packet, and forwards the first packet to the second network node through the first communication link. The first link quality identifier indicates a first quality requirement on the communication link between the first network node and the second network node. The plurality of communication links between the first network node and the second network node include the first communication link, and link quality of the first communication link meets the first quality requirement.