(third-person singular simple present subnets, present participle subnetting, simple past and past participle subnetted)
- (networking) To break a network into subnets.
subnet - Computer Definition
A network, either physical or logical, that operates as part of a larger network. In a local area network (LAN), for example, there may be many virtual LANs (VLANs), each of which may comprise many users on separate physical segments.The users are grouped in VLAN domains by physical port number, Transmission Control Protocol (TCP) port address, medium access control (MAC) address, or Internet Protocol (IP) address. Each VLAN operates as a subnet. See also LAN and VLAN.
(SUBNETwork) A logical division of a local area network, which is created to improve performance and provide security. To enhance performance, subnets limit the number of nodes that compete for available bandwidth. Instead of one network handling all the traffic, the network is divided into groups of clients and servers that interact with each other most of the time. For security, the subnet divisions can be based on servers that have restricted applications. Routers are bridges are used to traverse network segments. In an IP network, the subnet is identified by a subnet mask (see subnet mask).