| neighborhood discovery A process that runs on the network processor (NP) of each LightStream 2020 ATM switch in the Asynchronous Transfer Mode (ATM) network. For call routing purposes, every node in the network needs to know about changes in network topology, such as trunks and ports going up or down. ND learns about such changes at the chassis level and forwards this information to the global information distribution (GID) process, which sends the information throughout the network. Sometimes referred to as neighborhood discovery daemon, or NDD. See also GID. |