Towards Green Cloud Transmission: Observation from Practical Inter-Cloud Links

With the development of economic globalization and emerging applications such as transnational communication and webcasting, inter-cloud link transmission has become a key factor for green networking. Optimized transmission policies can effectively reduce network energy consumption and improve resource utilization by dynamically adjusting the optimal network paths. In this paper, we collect first-hand and over-million-level network datasets from practical nodes on three continents (Asia, Europe, and North America), and analyze the characteristics of international links among cloud centers in different continents. According to the actual test results, we discover that the network transmission quality strongly correlates with factors such as time zone and cloud service provider. Besides, we conclude that the quality of inter-cloud networks can be effectively improved according to regional activity and triangular routing. Based on the in-depth observation, we further discuss the optimization directions of network transmission and provide relevant suggestions. This work is of significant reference value for research on green transmission of inter-cloud links.