- DCN Tutorial
- Data Comm & Networks Home
- DCN - Overview
- DCN - Computer Network Types
- DCN - Network LAN Technologies
- DCN - Computer Network Topologies
- DCN - Computer Network Models
- DCN - Computer Network Security
- Physical Layer
- DCN - Physical Layer Introduction
- DCN - Digital Transmission
- DCN - Analog Transmission
- DCN - Transmission media
- DCN - Wireless Transmission
- DCN - Multiplexing
- DCN - Network Switching
- Data Link Layer
- DCN - Data Link Layer Introduction
- DCN - Error detection and Correction
- DCN - Data Link Control & Protocols
- Network Layer
- DCN - Network Layer Introduction
- DCN - Network Addressing
- DCN - Routing
- DCN - Internetworking
- DCN - Network Layer Protocols
- Transport Layer
- DCN - Transport Layer Introduction
- DCN - Transmission Control Protocol
- DCN - User Datagram Protocol
- Application Layer
- DCN - Application Layer Introduction
- DCN - Client-Server Model
- DCN - Application Protocols
- DCN - Network Services
- DCN Useful Resources
- DCN - Quick Guide
- DCN - Useful Resources
Reference Models in Computer Network
In computer networks, reference models give a conceptual framework that standardizes communication between heterogeneous networks.
The two popular reference models are −
- OSI Model
- TCP/IP Protocol Suite
OSI or Open System Interconnection model was developed by International Standards Organization (ISO). It gives a layered networking framework that conceptualizes how communication should be done between heterogeneous systems. It has seven interconnected layers.
The seven layers of the OSI Model are a physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer. The hierarchy is depicted in the following figure −
TCP / IP PROTOCOL SUITE
TCP stands for Transmission Control Protocol, while IP stands for Internet Protocol. It is a suite of protocols for communication structured in four layers. It can be used for communication over the internet as well as for private networks.
The four layers are application layer, transport layer, internet layer and network access layer, as depicted in the following diagram −
- Related Articles
- Explain various Computer Network Models
- What is B-ISDN reference model in computer network?
- Basic Network Attacks in Computer Network
- Repeaters in Computer Network.?
- Flooding in Computer Network
- WiMax in Computer Network
- Authentication in Computer Network
- Buffering in Computer Network
- Computer Network Components
- What is Star Network Topology in Computer Network?
- What is Ring Network Topology in Computer Network?
- What is Tree Network Topology in Computer Network?
- What is Bus Network Topology in Computer Network?
- What is MultiDrop Network Topology in Computer Network?
- Reservation Protocols in Computer Network