公开(公告)号：US20240064099A1

公开(公告)日：2024-02-22

申请号：US18449738

申请日：2023-08-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Donglei PANG ,  Cheng SHENG ,  Haibo WANG ,  Fanghong DUAN ,  Zhibo HU ,  Dapeng CHEN ,  Jingrong XIE

IPC: H04L45/64 ,  H04L45/00 ,  H04L12/18 ,  H04L45/76

CPC classification number: H04L45/64 ,  H04L45/54 ,  H04L12/185 ,  H04L45/76

Abstract: This application discloses a communication method and a related apparatus, and relates to the field of communication technologies. The method is applied to an SD-WAN overlay network. A CPE autonomously generates an SD-WAN overlay routing table, so that communication reliability and flexibility are improved. An RR specifies an overlay multicast 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.