Overview

Physical Media

  • TP cable
    • two wired twisted together surrounded by a shield
    • signal and ground reference
    • short range (100meters)
    • phone, DSL, ethernet lan
  • Coaxial
    • inner conductor
    • insulator
    • outer conductor (shield)
    • insulator
    • plastic cover
    • long distance high speed: cable tv ethernet lan
  • fibre optic
    • light within glass
    • high speed low error

Application Layer

[Application Layer](notes/Application Layer)

Transport Layer

[Transport Layer](notes/Transport Layer)

Network Layer

[Network Layer](notes/Network Layer)

Data Link Layer

[Data Link Layer](notes/Data Link Layer)

Physical Layer

[Physical Layer](notes/Physical Layer)

Wireless Layer

[Wireless Layer](notes/Wireless Layer)

Security Layer

[Security Layer](notes/Security Layer)

Other Layer

[Other Layer](notes/Other Layer)