Nonbackbone
The term "nonbackbone" refers to network infrastructure or components that are not part of the core, high-capacity transmission paths of a telecommunications network. In contrast, the backbone is the main, high-speed data route that connects different parts of a network and often links to other networks. Nonbackbone elements typically include local access networks, subscriber lines, and edge devices. These parts of the network are responsible for connecting end-users or smaller local networks to the larger backbone.
Examples of nonbackbone infrastructure include the copper wires or fiber optic cables that run from a local