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TCP/IP Model Overview & Layers

The document provides an overview of the TCP/IP model, which was developed by DARPA in the 1970s and forms the basis for internet communication. It describes the four layers of the TCP/IP model - application layer, transport layer, internet layer, and link/physical layer - and some of the key protocols in each layer, such as TCP, IP, HTTP, and Ethernet. The TCP/IP model is widely used today and allows for communication between devices on different networks, though it is more complicated to set up and manage than the OSI model.

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Arpitmaan
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315 views11 pages

TCP/IP Model Overview & Layers

The document provides an overview of the TCP/IP model, which was developed by DARPA in the 1970s and forms the basis for internet communication. It describes the four layers of the TCP/IP model - application layer, transport layer, internet layer, and link/physical layer - and some of the key protocols in each layer, such as TCP, IP, HTTP, and Ethernet. The TCP/IP model is widely used today and allows for communication between devices on different networks, though it is more complicated to set up and manage than the OSI model.

Uploaded by

Arpitmaan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as ODP, PDF, TXT or read online on Scribd
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TCP/IP MODEL

By

ARPIT MAAN
Introduction TCP/IP Model

TCP/IP was designed by The Department of Defense
(Dod) in the 1960s and is based on OSI Model.

The TCP/IP Model is a conceptual framework that
defines the protocols and standard used for
communication over the internet. It stands for
Transmission Control Protocol (TCP) / Internet
Protocol(IP).

The TCP/IP Model is widely used in modern
computer networks and forms the basic of internet
communication.

This is advance version of OSI Model.
Introduction TCP/IP Model
The Defense Advanced Research Projects Agency,
the research branch of the U.S. Department of
Defense, created the TCP/IP model in 1970s for use
in APRANET, a Wide Area Network that proceeded
the internet.

The TCP/IP Model related protocols are now


maintained by the Internet Engineering Task Force.
TCP/IP Model Layers
OSI TCP/IP
Application Layer
Presentation
Application Layer
Layer
Session Layer
Transport Layer Transport Layer
Network Layer Internet Layer
Data Link Layer Link and
Physical Layer Physical Layer
Introduction of Application Layer
The Application layer is the topmost layer n the
TCP/IP model. Its main function is to provide
network services and applications for end-user
communication.

Protocols of Application Layer


1. SMTP
2. POP
3. HTTP/HTTPS
4. FTP/TFTP
5. SSH
Introduction of Transport Layer
This layer is responsible for establishing the
connection between the sender and the receiver device
also performs the task of dividing the data from the
application layer into packets,which are then used to
create sequences.
Protocols of Transport Layer
1.TCP
2.UDP
3.SCTP
Introduction of Internet Layer
The internet layer is responsible for the logical
addressing and routing of data packets across different
networks. It enables communication between hosts
that may be located on different network.

Protocols of Transport Layer


1. IP
2. ARP/RARP
3. ICMP
4. IGMP
Introduction of Link & Physical
Layer
This layer also known as the network interface layer
or data link layer,consists of protocols that operate
only on a link. The network component that
interconnects nodes in the networks.
Protocol of Transport Layer
The protocols in this lowest layer include Ethernet
for local are networks and Address Resolution
Protocols(ARC).
Advantage of TCP/IP Model :-
●
Helps establish a connection between different types
of computers.
●
Works independently of the OS.
●
Supports many routing protocols.
●
Uses client-server architecture that is highly scalable.
●
Is lightweight and doesn’t place unnecessary strain on
a network or computer.
Disadvantage of TCP/IP Model :-
●
Is complicated to set up and manage.
●
Transport layer doesn’t guarantee delivery of packets.
●
Is not easy to replace protocols in TCP/IP Model.
●
Does not clearly separate the concepts of services,
interface and protocols, so it is not suitable for
describing new technologies in new networks.
●
Is especially vulnerable to a synchronization attack,
which is a type of denial-of-service attack in which a
bad actor uses TCP/IP.
Thank You!

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