Network topology achitecture

- [Instructor] Networks aren't, or shouldn't, … be built by just grabbing equipment … and plugging it together and hoping for the best. … Network design is the foundation upon which … an enterprise is built. … A stable base is imperative for long-term viability … of any organization. … I'll start small, and in fact, small environments … are often referred to as SOHO, … or small office home office. … These are generally networks of fewer than 10 endpoints … and usually terminates all connections in a single device … that performs all duties. … These all-in-one devices are often layer-three switches … that have wireless capabilities. … A Campus LAN generally refers to a grouping … of relatively close buildings, … all connected together via Ethernet switching. … A Tier 2 Design, as pictured here, … is a LAN that consists of two layers of switches. … At the edge are access switches … that aggregate user machines. … In this example, there are 12 access switches, … each connecting 20 endpoints. …