1. Network Topologies & Routers By Scott Miller

2. Network Topology: is the study of the physical and logical connections between input & output devices Physical (real) versus Logical (Virtual) NETWORK TOPOLOGY

3. Physical Topologies LAN’s are input/output device networks in a small radius that transmit voice, video & data. LOCAL AREA NETWORK TOPOLOGIES

4. ETHERNET A local area technology that connects all the devices in a local area network.

5. A computer network that covers a broad area using public & private communication links WIDE AREA NETWORK (WAN)

6. Routers enable data to reach their destination by connecting networks. ROUTERS

7. Tiers of interconnected networks that form the trunk & core of the Internet INTERNET BACKBONES

8. Tier 1- OC-192 connection links the biggest, fastest & most complex networks Tier 2- OC-48 to OC-12 somewhat slower (.62-2.5 GBPS) and usually serve large scale ISPs Tier 3- OC-12 to OC-3 are the slowest (155-620 MBPS) connects smaller ISPs, Universities, &businesses. INTERNET BACKBONE TIERS

9. Any Questions?