OSI 7 Layer Model

TCP IP Suite

Ethernet

IP Address (Extended)

Protocols

Transport Layer

Circuit Switching vs Packet Switching

  • There are many methods for exchanging information between networked devices
  • One fundamental way of differentiating networking technologies is on the basis of the method they use to determine the path between devices, over which information will flow
    • In simplified terms, there are two approaches:
      • either a path can be setup between the devices in advance
      • or the data can be sent as individual data elements over a variable path