Net backbone routes IP multicast as well. As many interesting emerging applications utilize IP multicast to address groups of hosts, IP multicast routing enhances the efficiency of this group-addressed data environment. In addition to the commodity campus data network, we have a campus ATM network. This network is primarily used to interconnect research laboratories on campus. Applications include parallel processing, graphics visualization, digital video and voice, IP internetworking, and protocol research.
Net backbone is a campus backbone of some seventeen thousand plus Internet hosts.
So the NCState. Net backbone provides data network connectivity between those university hosts. An equally important function of the backbone is to provide a gateway to the rest of the public Internet. Figure 5 . The North Carolina Research and Education Network Figure 5 shows the connectivity between NCState.