there are 7 layers in OSI model.
1. Physical
2. Data Link
3. Network
4. Transport
5. Session
6. Presentation
7. Application
The Internet model consists of 4 layers: Application layer, Transport layer, Network layer, and Link layer. Each layer is responsible for specific functions in the process of sending data over the Internet.
Network layer
that layer
The TCP/IP model was adopted and condensed into 4 Layers.1. Link layer ( Layer 1and 2 of the OSI model)2. Internet Layer (Layer 3 of the OSI model)3. Transport ( Layer 4, 5 and 6 of the OSI model)4. Application ( Layer 7 of the OSI model)http://en.wikipedia.org/wiki/TCP/IP_model#Link_Layer
The "Internet" layer in the TCP/IP model more or less corresponds to the "Network" layer (layer 3) of the OSI model. Both have the task of connecting different networks, independently on the type of layer-2 network; and of providing addresses to every machine on the Internet.
it comes in the first layer, or popularly known as the physical layer. must not be confused to be in datalink layer.
Layer 5
IP is a layer 3 (network layer) protocol used for routing
The network layer (Internet Layer in TCP/IP model) is the second layer of the TCP/IP model. IP (Internet Protocol), ARP (Address Resolution Protocol), RARP (Reverse Address Resolution Protocol), ICMP (Internet Control Message Protocol) and IGMP (Internet Group Management Protocol) are the protocols at this layer. http://www.omnisecu.com/tcpip/internet-layer.htm
The INTERNET LAYER of OSI model exists for "routing" and providing a single network interface to the upper layers.
Transport layer and Network layer.
dialog control