INDEX oWoWhat is TCP/IP protocol suite ? oDoDifferent layers. oEoEncapsulation. oPoProtocol Interface.

TCP/IP protocol suite A TCP/IP Protocol suite is combination of different protocols at various layers.

Different layers TCP/IP considered to be four layer system. Application Layer (FTP, HTTP, Telnet, NNTP) Application Layer (FTP, HTTP, Telnet, NNTP) Transmission control protocol (TCP) User Datagram Protocol (UDP) Transport Layer Network Layer (IP, ICMP, IGMP) Link Layer

Two networks connected with a router. FTP Protocol TCP Protocol Router IP Protocol IP Ethernet Protocol Token RingEthernet

FTP – File Transfer Protocol HTTP – Hyper Text Transport Protocol Telnet – Allows to log into computers on the internet NNTP – Network News Transfer Protocol IP – Internet Protocol ICMP – Internet Control Message Protocol IGMP – Internet Group Management Protocol

Encapsulation Application Ethernet Driver IP TCP User Data AHUser Application Data TCPH Application DataEthernet TrailerTCPHIP Header Application DataIP headerTCPH Ethernet TCP segment Ethernet

Protocol Interfaces FTP SMTP Telnet Other TCP IP Application

 It is a industry standard protocol.  It is set of utilities for connecting dissimilar OS.  It is scalable, client server architecture.  It has the maximum access of the internet (n/w layer) Advantages of TCP/IP protocol