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

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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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