When a device has multiple paths to reach a destination, it always selects one path by preferring it over others. This selection process is termed… Read More »DCN – Network Layer Routing

Layer 3 network addressing is one of the major tasks of Network Layer. Network Addresses are always logical i.e. these are software based addresses which… Read More »DCN – Network Addressing

Layer-3 in the OSI model is called Network layer. Network layer manages options pertaining to host and network addressing, managing sub-networks, and internetworking. Network layer… Read More »DCN – Network Layer Introduction

Data-link layer is responsible for implementation of point-to-point flow and error control mechanism. Flow Control When a data frame (Layer-2 data) is sent from one… Read More »DCN – Data-link Control & Protocols

There are many reasons such as noise, cross-talk etc., which may help data to get corrupted during transmission. The upper layers work on some generalized… Read More »DCN – Error Detection & Correction

Data Link Layer is second layer of OSI Layered Model. This layer is one of the most complicated layers and has complex functionalities and liabilities.… Read More »DCN – Data-link Layer Introduction

Switching is process to forward packets coming in from one port to a port leading towards the destination. When data comes on a port it… Read More »DCN – Network Switching

Multiplexing is a technique by which different analog and digital streams of transmission can be simultaneously processed over a shared link. Multiplexing divides the high… Read More »DCN – Multiplexing

Wireless transmission is a form of unguided media. Wireless communication involves no physical link established between two or more devices, communicating wirelessly. Wireless signals are… Read More »DCN – Wireless Transmission

The transmission media is nothing but the physical media over which communication takes place in computer networks. Magnetic Media One of the most convenient way… Read More »DCN – Transmission Media