The TCP/IP Model
While the OSI model serves as the foundational conceptual framework for teaching, the Internet in practice uses the simpler TCP/IP model.
The TCP/IP model consolidates networking functions into four operational layers:
- Link Layer: Handles physical connections and direct data movement between adjacent devices.
- Internet Layer: Routes packets across multiple distinct networks using IP addressing.
- Transport Layer: Delivers data end-to-end between programs running on host machines.
- Application Layer: Encompasses the network applications and protocols that exchange user data directly.
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Prep Sessions
From Packets to Protocols: How Modern Networks Transmit Data @ University of Michigan - Ann Arbor
Ch.1 Network Architecture and Layering - From Packets to Protocols: How Modern Networks Transmit Data @ University of Michigan - Ann Arbor
Layered Network Models and Encapsulation - From Packets to Protocols: How Modern Networks Transmit Data @ University of Michigan - Ann Arbor
Learn After
Which layer of the TCP/IP model is responsible for routing packets across multiple distinct networks using IP addressing?
In practical networking, the Internet uses the TCP/IP model rather than the OSI model.
What is the primary role of the Link Layer in the TCP/IP model?
List the four operational layers of the TCP/IP model and explain the primary function of each layer.