The cloud data centers are the infrastructure of cloud computing networks. The continuous penetration of cloud computing business has stimulated the construction of super data centers.

After more than 40 years of development, Ethernet, as its name "Ether"-ETHER, has reached the level that the pioneers originally thought to achieve. "Ether is everywhere" and has become the ubiquitous medium of the human information society.

The data center provides computing and storage resources for applications, data, and content. In order to achieve mutual communication-sharing data and content and providing redundant backup, data centers need to be interconnected. Data Center Interconnect (DCI) is the use of high-speed optical devices to connect two or more data centers together.