What is transport layer in osi model

The transport layer (Layer 4) is responsible for delivery of an entire message from an application program on the source device to a similar application program on the destination device.

Table of Contents Show

What is transport layer explain?
What is the main function of transport layer?
Why is transport layer the OSI model?
What is an example of the transport layer?

The main functions of the transport layer are as follows −

It delivers a message from a specific process of one computer to a specific process in another computer. The transport layer adds a port address to the header of the data packet.
It divides a message into smaller segments such that each segment contains a sequence number along with the port address. It ensures that the segments arrive correctly at the receiver’s end and then reassembles them.
It provides an error-free point-to-point channel for both connectionless and connection-oriented services.
It isolates the upper layers, i.e., the user support layers from any changes in hardware technology in the lower layers, i.e., network support layers.
It identifies errors like damaged packets, lost packets, and duplication of packets, and provides adequate error-correction techniques.

Updated on 17-Jun-2020 12:42:33

Related Questions & Answers
The Physical Layer of OSI Model
The Network Layer of OSI Model
The Session Layer of OSI Model
The Presentation Layer of OSI Model
The Application Layer of OSI Model
The Data Link Layer of OSI Model
The Transport Layer in TCP/IP Model
What is the transport layer?
The OSI Reference Model
Advantages and Disadvantages of the OSI Model
What is the OSI Reference Model?
Describe the Transport Layer in the Computer Network
TCP and UDP in Transport Layer
Multiplexing and Demultiplexing in Transport Layer
Computer Networks – Layers of OSI Model

What is transport layer explain?

In computer networking, the transport layer is a conceptual division of methods in the layered architecture of protocols in the network stack in the Internet protocol suite and the OSI model. The protocols of this layer provide end-to-end communication services for applications.

What is the main function of transport layer?

Positioned at Layer 4 of the Open Systems Interconnection (OSI) communications model, the transport layer ensures the reliable arrival of messages across a network and provides error-checking mechanisms and data flow controls.

Why is transport layer the OSI model?

Transport Layer (Layer 4) : It is responsible for the End to End Delivery of the complete message. The transport layer also provides the acknowledgement of the successful data transmission and re-transmits the data if an error is found.

What is an example of the transport layer?

The transport layer controls the reliability of communications through flow control, segmentation, and error control. Two great examples of transport protocols are TCP (as in TCP/IP) and UDP.