Segmentation

The act of subdividing a network into numerous smaller units. These smaller units, groupings, segments, or subnetworks (i. e. , subnets) can be used to improve various aspects of the network. Segmentation can boost performance, reduce congestion, compartmentalize communication problems (such as broadcast storms), and provide security improvements through traffic isolation. Segments can be created by using switch- based VLANs, routers, or firewalls (as well as combinations of all of these).