Data center interconnect refers to dedicated network connections between data center facilities that carry traffic between your infrastructure at each location. Instead of routing traffic between sites over the public internet, DCI uses dedicated circuits that provide. DCI networks interconnect two or more data centers and are essential for our daily lives and businesses. Data Center Interconnect (DCI) technology connects two or more data centers together over short, medium, or long distances using. DCI (Data Center Interconnect): Data Center Interconnect (DCI) is the use of a combination of technology and systems to enable computing inside a data center to be physically separate from one another and interconnected over short to long distances.