Comparison to
main protocol stack for computer operations
TCP: Transmission Control Protocol
IP: Internet Protocol
| OSI |
TCP/IP |
| conceptual |
used to transfer data in production networks |
| 7 layers documented |
4 layers documented |
| better to be referenced in conversations with other network engineers |
|
| OSI Model |
TCP/IP Stack |
Cisco TCP/IP Stack Definition |
| Application |
|
|
| Presentation |
Application |
‘Represents data users, encodes and controls the dialog’ |
| Session |
|
|
| Transport |
Transport |
‘Supports communication between end devices across a diverse network’ |
| Network |
Internet |
‘Provides logical adressing and determines the best path through the network’ |
| Data Link |
Network Access |
‘Controls the hardware devices and media that make up the network |
| Physical |
|
|
Terminology for communication between hosts
| TCP/IP Stack 1 |
Term for Protocol Data Unit (PDU) |
TCP/IP Stack 2 |
| Application |
Data |
Application |
| Transport |
Segment |
Transport |
| Internet |
Packet |
Internet |
| Network Access |
Frame |
Network Access |