A router that makes up part of the backbone, which all traffic from peripheral networks will pass through on the way to other peripheral networks.

In a packet-switched star topology, a router that is part of the backbone and that serves as the single pipe through which all traffic from peripheral networks must pass on its way to other peripheral networks.

a router in a computer network that routes data within a network but not between networks

a router that forwards packet s to computer host s within a network (but not between networks)

Core routers are switching computers used on the main connection links (backbone) of a network. These switching computers are particularly powerful, and specialize in the transfer of huge data volumes over the information highway.

A core router is a router designed to operate in the core of the Internet. To fulfill this role, a router must be able to support multiple telecommunications interfaces of the highest speed in use in the core internet and must be able to forward IP packets at full speed on all of them. It must also support the routing protocols being used in the core.