The document describes the seven-layer OSI model and how data is transmitted through the layers. It defines each layer and their functions. The physical layer handles physical transmission of bits. Higher layers encapsulate the data with headers, transforming it into frames, packets and segments. As it flows down, layers remove same-layer headers and pass to adjacent layers for transmission.
Get custom writing services for OSI Model Assignment help & OSI Model Homework help. Our OSI Model Online tutors are available for instant help for OSI Model assignments & problems.OSI Model Homework help & OSI Model tutors offer 24*7 services . Send your OSI Model assignments at support@globalwebtutors.com or else upload it on the website. Instant Connect to us on live chat for OSI Model assignment help & OSI Model Homework help.
This slide is all about OSI model of Computer Network. It was the very first standard model for Computer Network System. In this slide I have discussed about the 7 layers of OSI model.
OSI Reference Model - internationally standardised network architecture.
OSI = Open Systems Interconnection: deals with open systems, i.e.systems open for communications with other systems.
Specified in ISO 7498.
Model has 7 layers.
Get custom writing services for OSI Model Assignment help & OSI Model Homework help. Our OSI Model Online tutors are available for instant help for OSI Model assignments & problems.OSI Model Homework help & OSI Model tutors offer 24*7 services . Send your OSI Model assignments at support@globalwebtutors.com or else upload it on the website. Instant Connect to us on live chat for OSI Model assignment help & OSI Model Homework help.
This slide is all about OSI model of Computer Network. It was the very first standard model for Computer Network System. In this slide I have discussed about the 7 layers of OSI model.
OSI Reference Model - internationally standardised network architecture.
OSI = Open Systems Interconnection: deals with open systems, i.e.systems open for communications with other systems.
Specified in ISO 7498.
Model has 7 layers.
ISO is an organization which is established in 1947.
AN ISO standard that covers all aspects of network communication.
Network communication model is defined in OSI.
It was first introduced in the late 1970s, 1983
Open System Interconnection (OSI) represents a generalization of concept of inter-process communication so that any open system may be technically able to communicate with another open system.
ISO is an organization which is established in 1947.
AN ISO standard that covers all aspects of network communication.
Network communication model is defined in OSI.
It was first introduced in the late 1970s, 1983
Open System Interconnection (OSI) represents a generalization of concept of inter-process communication so that any open system may be technically able to communicate with another open system.
This is a notes about basic introduction of OSI Model & TCP/IP Model. It contain details about the seven layers of the OSI Model which are Application layer, Presentation Layer, Session Layer, Transport Layer, Network Layer, Data Link Layer, Physical Layer
Power point presentation on osi model.
A good presentation cover all topics.
For any other type of ppt's or pdf's to be created on demand contact -dhawalm8@gmail.com
mob. no-7023419969
Difference between OSI Layer & TCP/IP LayerNetwax Lab
Difference between OSI Layer & TCP/IP Layer
TCP/IP OSI
It has 4 layers. It has 7 layers.
TCP/IP Protocols are considered to be standards
around which the internet has developed.
OSI Model however is a "generic, protocolindependent standard."
Follows Vertical Approach Follows Horizontal Approach
In TCP/IP Model, Transport Layer does not
Guarantees delivery of packets.
In OSI Model, Transport Layer Guarantees
delivery of packets.
This Presentation consists of the detailed analysis of OSI & TCP/IP Model used for data transmission in Computer Network. It is very beneficial for any BTech, BCA, MCA, MTech students, or who is interested in networking field.
1.The Open Systems Interconnect (OSI) model has seven layers.The mod.pdfanandatalapatra
1.The Open Systems Interconnect (OSI) model has seven layers.The model partitions a
communication system into abstraction layers. The original version of the model defined seven
layers.OSI means Open Systems Interconnectionis reference model for how applications can
communicate over a network This article describes and explains them, beginning with the lowest
in the hierarchy the physical and proceeding to the highest the application. The layers are stay in
this way:
Application
Presentation
Session
Transport
Network
Data Link
Physical
features osi model:
If network communications need to happen with out any trouble, many problems must be
solved. Coordinating all these problems are so complex and not easy to manage.
Big picture of communication over network is understandable through this OSI model.
We can understand new technologies as they are developed.
Troubleshooting is easier by separate network.
2.
the Data process that takes placethe message from one host to another cab be done as such:
The data to be passed from one host to another can be composed at the first top layer of the
passing device layer N into a protocol data unit.
The protocal data unit is passed to next layer, where it is known as the service data unit.
At next layer let us consider that layer be N-1 the service data unit is observed the with a
header,a footer,some times both,producing a layer next protocal data unit. It is then passed to
layer next layer N-2.
The process repeated until reaching the lower level,from which the data is transmitted to the
receiving device.
At the receiving device the data is passed from the lowest to the highest layer as a series of
SDUs while being successively stripped from each layer\'s header and/or footer, until reaching
the topmost layer, where the last of the data is consumed.
3.
ISO
1.OSI is a generic, protocol independent standard, acting as a communication gateway between
the network and end user.
2.OSI is a conceptual model that characterizes and standardizes the communication functions of
a computing or telecommunication system irrespective of their underlying structure and
technology being used.
3.OSI is a reference model.
4.The OSI model consists of 7 architectural layers
TCp/IP
1. TCP/IP model is based on standard protocols around which the Internet has developed. It is a
communication protocol, which allows connection of hosts over a network.
2.TCP/IP is a core protocol of the Internet Protocol Suite (IPS). It is the basic communication
language or protocol of the internet. It can be used as a communications protocol in a private
network either an intranet or an extranet
3.TCP/IP is an implementation of OSI model.
4.The tcp/ip can contains only 4 laters
4.1.network inerface layer:The most widely-known Application layer protocols are those used
for the exchange of user information.
2.internet layer:The Internet layer is responsible for addressing, packaging, and routing
functions. The core protocols of the Internet layer are I.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
1. OSI MODEL
Open System Interconnection
• This divides the networks into the 7 Layers
• The protocol perform services to unique layers
• Protocol interacts with protocol in Layer Directly above and
below
• Protocol: It is a set of instruction to perform a function or group
of function that is written by a programmer
2. 7 Layers of OSI Model
7. Application Layer
6. Presentation Layer
5. Session Layer
4.Transport Layer
3. Network Layer
2. Data Link Layer
1. Physical Layer
3. Data Transmission Process
When the end user sends data, that data will go through all seven layers of the
OSI model.The daa is broken into smaller and smaller parts beginning at Layer 4
(Transport Layer) until it's in the form of electric signals that can be sent across
the physical media.
As the data flows down the OSI model, it's refered to by different terms.There
are 4 different terms
At theApplication, Presentation, and Session layers, data is simply called Data
At theTransport Layer, data is placed into segments
At the Network layer, data is placed into packets
At the Data Link layer, data is placed into frames
Finally, at the Physical layer, data takes the form of bits, and it's all 1s and os !
4. This is the layer where the end users themselves
interact with the network.Authentication services
also run at Layer 7, but encryption runs at next layer
down.
The Application layer ensures that the remote
communication partner is available, that the needed
communication resource exist (e.g.A modem), and
that both ends of the communication agree on
procedures involving data integrity, privacy, and
error recovery.
5. Application Layer
When trying to decide if a protocol is an
Application layer protocol, just remember that
protocols that require the end user to enter a
request are Application layer protocols.
Firewalls, devices intended to keep network
intruders out, operate at Layer 7.
Protocols & services that run at L7 include:
Email Protocols: SMTP & POP3
Telnet, HTTP, FTP
SNMP (Simple N/w Management Protocol)
6. Presentation Layer
This Layer answers one simple question: "How
should data be presented ?" In addition to
properly formatting data, encryption occurs at
this layer.
Have you ever opened a file in word processing
application, and you got pages of
unrecognizable characters?That is Presentation
layer issue.The applications have not agreed on
how the data is to be presented
7. Presentation Layer
There are 4 primary tasks that this layer is
concerned with
1. Compatibility with OS
2. Proper encapsulation of data for n/w
transmission
3. Data formatting (ASCII, Binary)
4. Data encryption, compression and translation
You have probably seen some of the file types
that are used at Presentation layer:
JPEG, ASCII, GIF, MPEG, MIDI, andTIFF etc.
8. Session Layer
Layer 5 is the "manager" of the two-way
communication between two remote hosts.This
is the layer that handles the creation,
maintenance, and teardown of communications
between those two hosts.The overall
communication itself is referred to as a session.
Some sessions last just long enough to send a
unidirectional message, where other sessions
will be of longer duration.
9. Transport Layer
TheTransport-Layer's purpose is to establish a
logical end-to-end connectin between two systems,
segment data received from theupper layers of the
OSI model, and to make sure the data gets to the
destinationin the correct order and free of errors.
At this layers, there are two methods for
transporting data:
Connection oriented
Connection less
10. Network Layer
It is Layer 3 of the OSI model. IP runs at this
layer, and since routers operate here at L3, this
layer is often called "Routing Layer". Routing is a
two questions process:
1.What valid paths exist from the local router to
a given destination ?
2.What is the best path ("The Optimal Path") to
take to get there ?
11. Data Link Layer
The switches operate at Layer 2, WirelessAccess Points
(WAPs) also operate at this layer. Devices that you may be
using to access the internet, cable modems and DSL
modems, also run at L
4 Major specifications that run here are:
a. Ethernet
b. High Data Link Control (HDLC)
c. Point=to-Point Protocol (PPP)
d. Frame Relay
12. Data Link Layer
The Data Link Layer does perform error detection
through something called the Frame Check
Sequence, but this layer deos not perform error
recovery.
Data Link Layer is generally referred to as Layer 2,
and MAC addresses as Layer 2 addresses.
Switches operate at Layer 2, as do bridges, L3
bridges do exist, but when operating at Layer 3, they
are not switching or bridging.They are routing
13. Physical Layer
Whatever data our end users are creating, it's
going to eventually be "translated" into a series
of 1s and 0s. Once that is done, it's the Physical
layer that handles the actual data transmission.
Anything to do with a physical cable or the
standards in use - the pins, the connectors, the
electrical current itself - is running at the Physical
Layer
14. Data Transmission Process
As data flows down the OSI model, each layer adds a
header that will be removed by the same layer on
the other end of the session.These headers are
layer-specific.
As an end user enters data for transmission to a
remote host, the first 6 layers of the OSI model will
add a layer-specific header tht contains information
to be read by same layer at remote location.
Layer 2, adds both a trailer and a header
15. Data Transmission Process
The combination of data and a layer-specific
header in called a Protocol Data Unit (PDU).
There's a PDU for each layer.The combinatin of
data and L7 header information is called an L7
PDU.
After the data is successfully transmitted by the
Physical layer to the remote location, each layer
will remove the header added by its counterpart,
i.e. Layer 3 remove the L3 header and reads it,
and so forth.
16. Data Transmission Process
The term same-layer interaction describes
the process of a given OSI layer removing the
header placed on the data by the same layer
on the sending side.
The term adjacent-layer interaction refers to
the interaction between layers of the OSI
model on the same host.