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Some tools measure traffic by sniffing and others use SNMP, WMI or other local agents to measure bandwidth use on individual machines and routers. However, the latter generally do not detect the type of traffic, nor do they work for machines which are not running the necessary agent software, such as rogue machines on the network, or machines ...
To determine normal reference traffic for a network, the ITU recommends that a network traffic analyst must take measurements for the busiest hour of each day for a whole year. [2] The busiest hour is defined as that four consecutive quarter hours whose traffic intensity is the greatest. Measurements taken outside the busy hour can be discarded.
This impairs the design of the network. Traffic models are hence, a core component of any performance evaluation of networks and they need to be very accurate. “Teletraffic theory is the application of mathematics to the measurement, modeling, and control of traffic in telecommunications networks. [1]
Network traffic or data traffic is the amount of data moving across a network at a given point of time. [1] Network data in computer networks is mostly encapsulated in network packets, which provide the load in the network. Network traffic is the main component for network traffic measurement, network traffic control and simulation.
Cacti is an open-source, web-based network monitoring, performance, fault and configuration management framework designed as a front-end application for the open-source, industry-standard data logging tool RRDtool. [3] Cacti allows a user to poll services at predetermined intervals and graph the resulting data. Through the use of Cacti plugins ...
Network calculus is "a set of mathematical results which give insights into man-made systems such as concurrent programs, digital circuits and communication networks." [1] Network calculus gives a theoretical framework for analysing performance guarantees in computer networks.
There are many different ways to measure the performance of a network, as each network is different in nature and design. Performance can also be modeled and simulated instead of measured; one example of this is using state transition diagrams to model queuing performance or to use a Network Simulator.
Network traffic simulation usually follows the following four steps: [1] [2] Modelling the system as a dynamic stochastic (i.e. random) process; Generation of the realizations of this stochastic process; Measurement of Simulation data; Analysis of output data
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