Comparison Osi - TCP/IP
SIMILARITY BETWEEN THE OSI MODEL AND THE TCPIP MODEL
- Both are divided into layers or levels.
- The technology is assumed to be packet switching (not circuit switching).
- Networking professionals should know both: OSI as a model; TCP/IP as real architecture.
DIFFERENCE BETWEEN THE OSI MODEL AND THE TCPIP MODEL
- OSI clearly distinguishes services, interfaces and protocols. TCP/IP does not do so, not making this separation clear.
- OSI was defined before the protocols were implemented, so some necessary functionality fails or does not exist. On the other hand, TCP/IP was created after the protocols, so it fits perfectly with them.
- TCP/IP seems to be simpler because it has fewer layers.