Survey of computing power network

In September 2021, ITU-T released the first international recommendation for computing power networks (CPNs), Y.2501 jointly led by China Telecom, Unicom and Huawei, started Y.2500-Y.2599 series of recommendations networks. The network is a new type that integrates multilevel resources, realizes efficient coordination cloud, edge network, improves utilization efficiency resources provides users with optimal resource services. Since proposal in 2019, it has made breakthroughs its research standardization work. As field standards, also communication industry, this paper gives comprehensive analysis definition, framework, service model, key technologies current progress challenges, summarizing direction future which will have strong implications implementation network.