Offcourse osi..... TCP/IP is an implementation of osi....
TCP/IP because the osi model has seven layer but in tcp/ip only four layers and most important is that the tcp/ip model is reduce the function of osi model.
IP addresses are used primarily by layer 3 (network layer) of the OSI model for routine purposes.
The OSI model came after TCP/IP networking protocols were available in networks. The OSI description also as to describe and identify networking components that do not exist in the TCP/IP model.
Layer 3 of the OSI model. An ICMP header follows the IP header of the IP packet.
1.The OSI model originally distinguishes between service,interval and protocols. 1.The TCP/IP model doesnt clearly distinguish between service,interval and protocol. 2.The OSI model is a reference model. 2.The TCP/IP model is an implementation of the OSI model. 3.In OSI model,the protocols came after the model was described. 3.In TCP/TP model,the protocols came first,and the model was really just a description of the existing protocols. 4.In OSI model,the protocols are better hidden. 4.In TCP/IP model ,the protocols are not hidden. 5.The OSI model has 7 layers. The TCP/IP model has only 4 layers. 6.The OSI model supports both connectionless and connection-oriented communication in the network layer,but only connection -oriented communication in transport layer. 6.The TCP/IP model supports both connectionless and connection-oriented communication in the transport layer.,giving users the choice. For more information visit the Related Link.
The OSI model encompasses all of the TCP/IP sub-protocols plus several other protocols that are not part of TCP/IP. These would include IPX/SPX, NetBEUI, Appletalk, and other proprietary protocols that are not part of the TCP/IP model.
transport
DHCP runs at the application layer of the OSI model.
There are in total seven layers in OSI model . OSI model layer that is responsible for the termination of connections between hosts is session layer . Session layer is responsible for the dialog control .
Layer 3 i.e, network layer of the OSI model is used to IP addressing.
Physical layer which is the first layer in OSI reference model is responsible for signal encoding and decoding.