Connecting Devices

Major objective of this lecture is to describe on Connecting Devices. Here explain some Connecting Devices like Layer 1 (Physical) Devices: Repeater and Hub, Layer 2 (Data Link) Devices: Layer 2 switch and Layer 2 bridge; Layer 2/3 Devices: Broadband (Cable/DSL) or Wireless Router and Layer 3 Switch and Layer 3 (Network) Devices: Layer 3 Bridge and Router. Finally explain on Routers: Network Interfaces, Input Buffers, Routing Processors, Switching Fabric etc.