Briefly write functionalities of different OSI layers?

The OSI Reference Model includes seven layers. Basic functionality of each of them is as follows:

1. Physical Layer: Controls the transmission of the real data onto the network cable. It explains the electrical signals, line states and encoding of the data and the connector types used. An instance is 10BaseT.

2. Data-Link Layer: This layer takes the data frames or messages from the Network Layer and gives for their actual transmission.

3. Network Layer:  This is responsible for addressing messages and data so they are sent to the correct destination, and for translating logical addresses and names (as a machine name FLAME) into physical addresses.

4. Transport Layer:  Make sure that data is delivered error free, in sequence and with no loss, duplications or corruption.

5. Session Layer: Permit two applications to establish, use and disconnect a connection among them known as a session.

6. Presentation Layer: Verifies the format used to exchange data among networked computers.

7. Application Layer: Provides Applications with access to network services.

 

 

Posted Date: 7/26/2013 5:20:33 AM | Location : United States

Ask an Expert

Related Discussions:- Briefly write functionalities of different osi layers, Assignment Help, Ask Question on Briefly write functionalities of different osi layers, Get Answer, Expert's Help, Briefly write functionalities of different osi layers Discussions

Write discussion on Briefly write functionalities of different osi layers
Your posts are moderated

Write your message here..

Related Questions

Quality of service, Networks are more frequently being prepared to allow sp... Networks are more frequently being prepared to allow specification of the quality of service needed by users. For example: - a typical voice telephone call may give a QoS para

Access networks and physical media - computer network, Access Networks and ... Access Networks and Physical Media Access  networks  are the  physical  links(S) that connect  an end  systems to its edge  router. Which  is the  first router on a path  fr

Advantages of ls over dv algorithm, Advantages of LS over DV algorithm ... Advantages of LS over DV algorithm There  are a number of advantages to link  state  protocols  especially when  compared to  the distance vector based  routing  protocols. The

Show data link and physical vs subnet, Q. Show Data link and Physical vs Su... Q. Show Data link and Physical vs Subnet? - Data link layer The function of the Data Link Layer is -offers for the control of the physical layer and detects and possib

Connection oriented transport tcp - transport layer, Connection Oriented Tr... Connection Oriented Transport TCP In addition  to providing  reliable communication transmission control protocols  effects errors  control flow  control  and resequencing of

Example of parallel sections construct, This example demonstrates the use o... This example demonstrates the use of parallel sections construct. The three functions, fun1, fun2, and fun3, all can be executed concurrently.  Note that all the section directives

What is a lan, What is a LAN? LAN stands for Local Area Network. It ref... What is a LAN? LAN stands for Local Area Network. It refers to the connection among computers and other network devices that are located within a small physical location.

What are called fat clients and fat servers, What are called Fat clients an... What are called Fat clients and Fat servers? If the bulk of the application runs on the Client side, then it is Fat clients. It is used for decision support and personal softwa

Hybrid of client server and p2p architecture, Hybrid  of Client Server and... Hybrid  of Client Server and P2P Architecture Both of  the architecture  are  commonly used  architecture. However  many  applications  are organized as by brides of the  clie

Explain peer-to-peer networking model, Explain Peer-to-Peer Networking Mode... Explain Peer-to-Peer Networking Model. A networking model where every workstation has equivalent capabilities and responsibilities is called as peer-to-peer model. There is no