Dense wavelength division multiplexing (DWDM) is a technology that multiplexes data signals from different sources so they can share a single optical fibre pair while maintaining complete separation of the data streams.DWDM can handle higher speed protocols up to 100 Gbps per channel. Each channel is only 0.8nm apart. Dense ... Read More

Let us understand what a SONET/SDH Transmission in computer networking is.SONET/SDH TransmissionSONET stands for synchronous optical network. It offers cost effective transport both in the access area and core of the network.The transport services for the metro are provided by the optical layer. The optical layer has been now giving ... Read More

Access Network is a type of network which connects the end system to the immediate router, physically in the path from the end system to any other distant end system. In telecommunications it is the network connecting subscribers to ISP.Some of the examples of the Access Networks are as follows ... Read More

Packet Switched service transfers the data from source to destination. Data is transferred on a type of network in which small units of data called packets are transferred. Each packet contains a destination address within it, where it has to be received.This type of communication between receiver & sender is ... Read More

In a packet switching network, the data or information is transmitted between the sender and receiver in the form of packets. It does not require a dedicated physical path to transmit the fixed-size packet across the sun-network.If the size of information is large, then it is subdivided into multiple packets. ... Read More

The presence of congestion means the load is greater than the resources available over a network to handle. Generally we will get an idea to reduce the congestion by trying to increase the resources or decrease the load, but it is not that much of a good idea.There are some ... Read More

When too many packets are present in the network it causes packet delay and loss of packet which degrades the performance of the system. This situation is called congestion.The network layer and transport layer share the responsibility for handling congestions. One of the most effective ways to control congestion is ... Read More

We need a virtual-circuit subnet for connection-oriented service. Virtual circuits were designed to avoid having to choose a new route for every packet sent.Instead, a route from the source machine to the destination machine is chosen as part of the connection setup and stored in tables inside the routers, when ... Read More

When connectionless service is offered, packets are frequently called Datagrams (just like telegrams) because individual packets are injected to the subnet and are routed individually.No advance setup is required. Subnets are called Datagram subnets. When Connection oriented service is provided, then before any packet is sent a path from source ... Read More

Let us understand what a Wi-Fi Direct mode is.Wi-Fi Direct ModeThe Wi-Fi Direct is built upon the same Wi-Fi technology used by most modern consumer electronic devices to communicate with wireless routers. It allows two devices to communicate with each other, provided that at least one of them is compliant ... Read More