公开(公告)号：US20210385265A1

公开(公告)日：2021-12-09

申请号：US17342444

申请日：2021-06-08

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Hanshu Hong ,  Zhenwei Zhang ,  Tengxiang Zhang ,  Feng Dong

IPC: H04L29/06 ,  G06K9/00 ,  H04L12/26 ,  H04L12/24 ,  G10L25/60 ,  G10L25/57 ,  G06N20/00

Abstract: A method for determining quality of an audio and video stream includes: obtaining a key indicator for a target audio and video stream, the key indicator including at least one of the following indicators within a reference time period: a maximum quantity of continuously lost packets, an average packet receiving time interval, an average packet receiving time interval variance, or a quantity of stream interruptions; and determining a QoE of the target audio and video stream based on the key indicator.

公开(公告)号：US11165716B2

公开(公告)日：2021-11-02

申请号：US16706088

申请日：2019-12-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Song ,  Zhenwei Zhang

IPC: H04L12/927 ,  G06F9/455 ,  H04L12/859 ,  H04L12/865 ,  H04L12/931

Abstract: This application provide a data flow processing method and a device. A host determines a priority corresponding to a first data flow to be sent to a switch, and adds the priority to the first data flow to generate a second data flow that includes the priority. The host sends the second data flow to the switch, so that the switch processes the second data flow according to the priority of the second data flow. A host assigns a priority to a data flow, and the switch does not need to determine whether the data flow is an elephant flow or a mouse flow, thereby saving hardware resources of the switch. The switch does not need to determine the priority of the data flow, thereby processing the data flow in a timely manner.

公开(公告)号：US10659359B2

公开(公告)日：2020-05-19

申请号：US16123576

申请日：2018-09-06

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Guoping Li ,  Zhenwei Zhang

IPC: H04L12/741 ,  H04L12/721 ,  H04L12/24 ,  H04L12/751 ,  H04L12/26 ,  H04L29/12 ,  H04L29/08

Abstract: A network device checks forwarding tables of routers in a network by sending check packets designed to reach a target router via label-forwarding. The network device determines a forwarding path from itself to a destination IP address, with the target router on the forwarding path and at N hops from itself. The network device then generates and sends a check packet having a label stack with N link labels correspond to the hops and a TTL value set to N+1. When the check packet is routed by the target router to a next-hop node of the target router, the TTL value is deducted to 0, causing the next-hop node to send a notification message to the network device. Based on the identity of the next hop node, the network device determines whether the forwarding table of the target router is correct.