OSI Model Intro


OSI Model Intro.

This is discussed so that,
1. Node's non blocking IO model can be fully understood.
2. Node's middleware concept can be explained.

7 Layers At A Glance









INTRO:


1. In the OSI model, control is passed from one layer to the next, starting at the application layer (Layer 7) in one station, and proceeding to the bottom layer, over the channel to the next station and back up the hierarchy. 
2. The OSI model takes the task of inter-networking and divides that up into what is referred to as a vertical stack that consists of the following 7 layers.

References Used:
1.https://www.webopedia.com/quick_ref/OSI_Layers.asp#OSI-7
2. https://en.wikipedia.org/wiki/OSI_model

Comments

Post a Comment

Popular posts from this blog

OSI Model

Image
7 Layers In Detail 7 Layers In Detail Layer 7 Layer 7 1. OSI Model, Layer 7, supports application and end-user processes.  2. Communication partners are identified, quality of service is identified, user authentication and privacy are considered, and any constraints on data syntax are identified.  3. Everything at this layer is application-specific.  4. This layer provides application services for file transfers, e-mail, and other network software services. WWW browsers, NFS, SNMP, Telnet, HTTP, FTP Layer 6 1. Provides independence from differences in data representation (e.g., encryption) by translating from application to network format, and vice versa.  2. Works to transform data into the form that the application layer can accept.  3. Formats and encrypts data to be sent across a network, providing freedom from compatibility problems.  4. It is sometimes called the syntax layer. encryption, ASCII, EBCDIC, TIFF, GIF, PICT, JPEG, MPEG, MIDI Lay
Read more

Audience And Agenda

The below series of posts is useful for, Developers. Infra Specialists. Dev/Sys Specialists. towards, Understanding how node js works. How node middle wares work. Examine Passport Js. It is NOT, Focussed on how to use node js. Samples or Examples for node js. Talking about advanced usage. Some Pre-requisites before you jump in, Basic shell scripting. Basic java script programming. Node js. The first series of posts are about basic networking, Let's get started. It is important to understanding the OSI model before understanding Node Js and middleware in node. Next-->
Read more