Definition[]
Core networks
| “ | transport a high volume of aggregated traffic over substantial distances or between different service providers or "carriers."[1] | ” |
Overview[]
"These networks connect regions within the United States as well as all continents except Antarctica, and use submarine fiber optic cable systems, land-based fiber and copper networks, and satellites. In order to transmit data, service providers manage and control core infrastructure elements with numerous components, including signaling systems, databases, switches, routers, and operations centers. Multiple service providers, such as AT&T and Verizon, operate distinct core networks traversing the nation that interconnect with each other at several points. End users generally do not connect directly with the core networks."[2]