TCP/IP 和OSI协议的相同点和不同点

OSI: open system interconnection reference
TCP/IP: transmission control protocol/ internet protocol

OSI:
application
presentation
session
transport
network
data link(MAC: medium access control)
pysical

TCP/IP
application
tranposrt
internet
host-network

same:

1. they are layer protocol
2. they all have application, transport, and network(internet) layer.
3. the layer above tranport layer are application

difference:

1. OSI has 7 layers, but TCP/IP has 4 layers
2. OSI differentiates service, interface, and protocol, but TCP/IP does not.
3. the Host-to-network is not a layer, it is an interface between datalink layer and network layer.
4. the TCP/IP only has connectionless in internet layer, but OSI has connectionless and connection oriented in network layer.
5. the TCP/IP has connectionless in tranport layer, but OSI only has connection oriented in transport layer.