Networksubdivision is a technique used to improve performance and security and help organizeresources. Smaller networks also help withtroubleshooting issues. In this lesson you will learn the two approaches todividing a network--VLANs and subnets. You willlearn the concept of a virtual switch architecture and the use of trunking toconnect VLAN nodes residing in different switches, how to setup VLAN’s and howto maintain them. We willalso discuss and show an illustrated example on how to subnet networks usingthe concept of subnet mask.