TCP/IP Protocol suite architecture

INDEX

oWhat is TCP/IP protocol suite ?

oDifferent layers.

o Encapsulation.

o Protocol 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)

Transmission control protocol (TCP)

User Datagram Protocol (UDP)

Transport Layer

Network Layer(IP, ICMP, IGMP)

Link Layer

Two networks connected with a router.

FTP Server

TCP

Token Ring Driver

IP

FTP Client

TCP

Ethernet

IP IP

EthernetToken Ring

Driver

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

AH User

Application Data

TCPH

Application Data

Ethernet Trailer

TCPHIP

Header

Application Data

IP header

TCPH

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

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