Devices & Protocols in Relation to OSI Model (part 2)

A Deeper look at the OSI Model This lesson offers a more in-depth review of the OSI Model, which consists of seven layers: Layer 1: Physical
  • Anything that can be touched, measured and seen.
Layer 2: Data link
  • Provides point to point connectivity
Layer 3: Network
  • IP/routing
Layer 4: Transport
  • TCP/UDP for management and session data
Layer 5: Session
  • Connection management
Layer 6: Presentation
  • Formatting data
Layer 7: Application
  • Manages how application are able to send and receive over a network
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