The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2022
Filed:
Mar. 20, 2020
Huawei Technologies Co., Ltd., Shenzhen, CN;
Yeyi Ji, Nanjing, CN;
Yulei Zhang, Nanjing, CN;
Liang Zang, Nanjing, CN;
Bizhen Liu, Nanjing, CN;
Honghao Zhu, Nanjing, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A communications connection detection method includes sending, by a first network node, a detection request packet to a second network node, where the detection request packet is used to detect whether the first network node and the second network node are in a connected mode, deleting, by the first network node, a next hop resolution protocol (NHRP) table between the first network node and the second network node when the first network node determines that the first network node does not receive a detection response packet sent by the second network node.