Trick to remember OSI Model 7 Layers unforgettable shortcut name 

Here we will discuss Trick to remember OSI Model 7 Layers unforgettable shortcut name. It’s easy to remember the sequence of OSI Model 7 Layers using this simple sentence: “All people seem to need data processing.”

All = Application Layer

People= Presentation Layer

Seem = Session Layer

To = Transport Layer

Need = Network Layer

Data = Data Link Layer

Processing = Physical Layer

Application Layer (DATA)

 

Application Layer provides Interface between users and machines.

Protocols of this layer are: HTTP, HTTPS, FTP, TFTP, Telnet, SNMP, DNS, Rlogin, SMTP, POP3, IMAP, and LDAP.

Presentation Layer (DATA)

This layer facilitates the presentation of Data to the upper layer. Mainly, Provide Encoding Scheme & Encryption formation.

Protocols of this layer: JPEG, BMP, GIF, TIF, PNG, MP3, MIDI, ASCII & ANSI etc.

Session Layer (DATA)

This layer provides virtual agreement between two end communication devices.

Functions of this layer: Establishment, Management & Termination

The best example to explain this layer is telephone call in which first you established the connection, then exchange a message and finally terminate the session.

Protocols of this layer: SIP, NFS, SQL, ASP, RDBMS

The above three layers are known as the software layer.

 

 

Transport Layer (SEGMENT)

This layer is responsible for Control of Data flow and, if an error occurs, reconnect the data and re-transmit.

Functions of this layer: Handshaking, Acknowledgement and Sequencing

Protocols of this layer: TCP, UDP, SPX

Network Layer (Packet)

This layer is used for communication to remote networks.

Functions of this layer: Sorting, Filtering and Distribution

Protocols of this layer: Routed Protocol: IP/IPX/Apple talk

Routing Protocol: IGP, EGP, BGP, EBGP, IBGP, RIP, IGRP, RIP, OPSF, IS-IS

Data Link Layer (Frame)

Function of this layers: Error Detection and Control of Data

Uniqueness of this layer: MAC address

Protocols of this layer: PPP, HDLC, ATM, Frame Relay, SLIP, Ethernet

Physical Layer (Binary)

This involves media, move bits between devices

MAC Address: Information Delivered

IP Address: Carrier of Information

 

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Trick to remember OSI Model 7 Layers unforgettable shortcut name

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A popular and easy-to-remember mnemonic to recall the OSI model’s 7 layers is:

“Please Do Not Throw Sausage Pizza Away”

Each word corresponds to a layer, starting from the top (Application layer) to the bottom (Physical layer):

1. Please – Presentation
2. Do – Session
3. Not – Network
4. Throw – Transport
5. Sausage – Session
6. Pizza – Physical
7. Away – Application

This fun phrase helps to keep the layers in order and makes them easier to remember!

 

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Trick to remember OSI Model 7 Layers unforgettable shortcut name