公开(公告)号：EP4436139A1

公开(公告)日：2024-09-25

申请号：EP22906608.9

申请日：2022-12-14

申请人： Huawei Cloud Computing Technologies Co., Ltd.

发明人： CHEN, Wei ,  ZHOU, Yan ,  HU, Xukai ,  LIANG, Mengmeng

IPC分类号： H04L67/1074

CPC分类号： H04L67/1074 ,  H04L67/568 ,  H04L67/5681 ,  H04L67/1078

摘要： This application discloses a content delivery network CDN system and a content delivery method. An optical network terminal may communicate with a CDN edge node and an optical network control center through a dedicated WAN interface, and enjoy bandwidth resources of the dedicated WAN interface, without occupying home bandwidth resources of a user, so that internet access experience of the user is not affected. In the system of this application, after determining that a first CDN edge node does not cache target content requested by a first client, the first CDN edge node sends a first query request to the optical network control center. Then, the optical network control center controls, based on the first query request, the first CDN edge node to request the target content from a CDN central node. After the first CDN edge node obtains the target content from the CDN central node, the optical network control center may send a content pull instruction for the target content cached in the first CDN edge node to N optical network terminals, so that the N optical network terminals separately obtain the target content from the first CDN edge node based on the content pull instruction.