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:
Jun. 09, 2026
Filed:
Aug. 15, 2023
Huawei Technologies Co., Ltd., Shenzhen, CN;
Donglei Pang, Beijing, CN;
Cheng Sheng, Beijing, CN;
Haibo Wang, Beijing, CN;
Fanghong Duan, Nanjing, CN;
Zhibo Hu, Beijing, CN;
Dapeng Chen, Shenzhen, CN;
Jingrong Xie, Beijing, CN;
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
This application discloses a communication method and a related apparatus, and relates to the field of communication technologies. The method is applied to a software defined wide area network (SD-WAN) overlay network. A customer premise equipment (CPE) autonomously generates an SD-WAN overlay routing table, so that communication reliability and flexibility are improved. A route reflector (RR) specifies an overlay multicast reverse path forwarding (RPF) route to the CPE to implement SD-WAN overlay multicast communication, and the CPE does not need to perform path computation autonomously, so that a computing power requirement of the CPE is reduced. An identifier of the CPE and an identifier of a site are carried in a multicast join message to implement the SD-WAN overlay multicast communication. A standard IP header is carried in a multicast service packet to implement the SD-WAN overlay multicast communication, so that generalization, applicability, and compatibility are improved.