Session Layer is the 5th layer in the ISO model that helps to control the all dialogues in between all computers. Now, today we will explain about what is session layer with its protocols, functions, and examples; involving with many devices of session layer in OSI model with ease. After reading this article; you will definitely fully aware about What is Session Layer in OSI model without getting any obstacle.
What is Session Layer?
Definition: The session layer occupies the 5th position of OSI model. This layer depends on the transport layer, and it grabs all services which are offered by the transport layer.
Session layer has responsible for managing, establishing, synchronizing and terminating all sessions in between local and remote application.
Session Layer Tutorial Headlines:
In this section, we will show you all headlines about this entire article; you can check them as your choice; below shown all:
What is Session Layer?
Functions of Session Layer
Protocols of Session Layer
Design Issues with Session Layer
FAQs (Frequently Asked Questions)
What does session layer do in OSI model?
What is the main role of session layer in OSI model?
What are the session layer protocols in computer networks?
What are the protocols used in session layer of OSI model?
What are the two functions of the session layer?
Where is session layer used?
What are the few examples of session layer in OSI model?
Which devices are used in session layer?
Let’s Get Started!!
Functions of Session Layer
It allows dialoging control, and it helps to make communication in between in half-duplex or full-duplex.
Steps to build a session connection with two peer session services users, Follow these steps –
Getting to map session address with shipping address
Choose needed transport quality of service parameters.
Session parameters are getting negotiation.
Determine every session connections.
Transfer limited user data.
Data transmission cycle
This layer enables with token management because it helps to protect two lines from getting similar most critical operation at once.
Synchronization: Session layer enables with a process for attaching checkpoint which are worked as synchronization points into the data. Due to this synchronization, all errors can be identified, and all data is getting re-synchronized, and ends of the messages are not cut prematurely, as well as preventing loss of data.
Protocols of Session Layer
Session layer is used different types of protocols; below explain each one –
Examples of Session Layer:
These protocols are also known as examples of session layer protocols; such as:
Remote procedure call protocol (RPC): RPC protocol is used for requesting a service one computer to another computer system over the network without knowing any information of network.
Point-to-Point Tunneling Protocol (PPTP): This protocol is used for establishing Virtual Private Network (VPN) tunnels in between other public network.
Session Control Protocol (SCP): SCP protocol is used to make light duty connections from single TCP connections, and those lightweight connections can be active at once..
Session Description Protocol (SDP): This protocol is used to define all parameters for transferring all multimedia in between two end systems.
AppleTalk Data Stream Protocol (ADSP): ADSP is a connection oriented protocol, and it helps to transfer full-duplex streams of data over the AppleTalk internet.
AppleTalk Session Protocol (ASP): This protocol allows multiple ASP workstation applications for building the session along with same server at once.
Internet Storage Name Service (iSNS): This protocol deals with automation of discovery and management of iSCSI devices over a TCP/IP storage network. It keeps all information like as their IP addresses, iSCSI node names, and portal groups.
Other Session Protocols are:-
Call Control Protocol for Multimedia Communication
OSI session-layer protocol (X.225, ISO 8327)
Layer 2 Forwarding Protocol
Layer 2 Tunneling Protocol
Network Basic Input Output System
Password Authentication Protocol
Design Issues with Session Layer
To enable all machines to build sessions in between them in seamless nature
To offer increased services to end user
To handle dialog control
To offer several services like as Token management and Synchronization.
FAQs (Frequently Asked Questions)
What does session layer do in OSI model?
Session Layer is the 5th layer in the ISO model that helps to control the all dialogues in between all computers. It also allows to build, manages, and terminates the connections between the remote and local application.
What is the main role of session layer in OSI model?
The session layer offers the environment for closing, opening and managing a session between the end-user application processes.
What are the session layer protocols in computer networks?
Session control protocol is a concept of making multiple light-duty connections from a single TCP (Transmission Control Protocol) connection like as Remote procedure call protocol, Point-to-Point Tunneling Protocol, Session Control Protocol, Session Description Protocol, AppleTalk Data Stream Protocol, AppleTalk Session Protocol, Internet Storage Name Service, and etc.
What are the protocols used in session layer of OSI model?
In this article, already we have been explained many protocols which are going to use in the session layer of OSI model; you can check them.
What are the two functions of the session layer?
It allows dialoguing control, and it helps to make communication in between in half-duplex or full-duplex.
This layer enables with token management because it helps to protect two lines from getting similar most critical operation at once.
Where is session layer used?
The session layer is widely used explicitly in the application environment that allows to use remote procedure calls.
What are the few examples of session layer in OSI model?
There are some examples, where is going to use in X. 225, AppleTalk and Zone Information Protocol (ZIP).
Which devices are used in session layer?
Many devices can be used in the session layer like as Gateway.
Final Remarks
Now, i can hope that you have been fully educated about what is session layer with its protocols, functions, and examples; involving with many devices of session layer in OSI model with ease. If this post is helpful for you, then please share it along with your friends, family members or relatives over social media platforms like as Facebook, Instagram, Linked In, Twitter, and more.
