Network segmentation

Network segmentation in computer networking are techniques of splitting a computer network into subnetworks, each being a network segment or network layer. Advantages of such splitting are primarily performance boost and security.

Advantages

• reduced congestion: Improved performance is achieved because on a segmented network there are less hosts per subnetwork, thus containing 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.