公开(公告)号：US11659435B2

公开(公告)日：2023-05-23

申请号：US16947718

申请日：2020-08-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Cong Xu ,  Haibo Zhang ,  Guoping Li

IPC: H04W28/02 ,  H04W28/22 ,  H04W28/26

CPC classification number: H04W28/0289 ,  H04W28/0236 ,  H04W28/22 ,  H04W28/26

Abstract: Embodiments of the present disclosure provide a network congestion control method, where the method includes: sending, by a transmit end device, forward probe packets to a destination device at a preset initialized rate, where some or all of the forward probe packets arrive at the destination device after being rate-limited forwarded by using a reserved bandwidth of an egress port of an intermediate device in a network; receiving return probe packets returned by the destination device, where the return probe packets correspond to the probe packets received by the destination device; and determining a data packet sending rate based on the received return probe packets, and sending a data packet at the data packet sending rate.

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.

公开(公告)号：US20170195203A1

公开(公告)日：2017-07-06

申请号：US15391212

申请日：2016-12-27

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Guoping Li ,  Xiaoyang Xu ,  Danian Shi

IPC: H04L12/26 ,  H04L12/707 ,  H04L12/725

CPC classification number: H04L43/0841 ,  H04L43/0829 ,  H04L43/10 ,  H04L45/24 ,  H04L45/302 ,  H04L45/3065

Abstract: A method, an apparatus, and a system for implementing packet loss detection. The method includes: determining, by a detection apparatus, there is no packet loss when packet transmission is performed at a first priority over a first loopback path that includes a first subpath and a second subpath; sending N1 packets over a second loopback path that includes the first subpath, the second subpath, a third subpath, and a fourth subpath, where the packets are transmitted at the first priority over the first subpath and the second subpath, and are transmitted at a second priority over the third subpath and the fourth subpath; and determining a packet loss rate according to N1 and a quantity N2 of received packets returned over the second loopback path. Therefore, a packet loss rate can be detected only by implementing a detection function on a detection apparatus, thereby resolving a problem of complex implementation.