Network segmentation in computer networking is the act or profession of splitting a computer network into subnetworks, each being a network segment or network layer. Advantages of such splitting are primarily for boosting performance and improving security.
- Reduced congestion: Improved performance is achieved because on a segmented network there are fewer hosts per subnetwork, thus minimizing local traffic
- Improved security: Broadcasts will be contained to local network. Internal network structure will not be visible from outside
- Containing network problems: Limiting the effect of local failures on other parts of network