International Conference on Advanced Computing, Communication and Networks - CCN 2011
Author(s) : M.SIDDAPPA, RAKESH S, SOWMYA M N
Network Simulation is a comprehensive tool for studying computer networks. NetSim features state of the art network simulation technology, and comes with additional offerings that enhance and quicken learning. NetSim is an educational network simulator and provides educators with a comprehensive and effective means of teaching computer networks. The software provides for network simulation across various protocols like Ethernet, Wireless LAN. TCP / IP, ATM and devices like routers, ATM switches. Apart from simulation NetSim also features C / C++ /JAVA programming exercises, animated basics and real time packet capture. NetSim provides network performance metrics at various abstraction level such as Network, sub-network, Node and a detailed packet trace. NetSim features a Development environment with a source code editor and a compiler. Model libraries with source code are provided for user modification. Importantly, options are not limited to the listing as it is possible to develop any type of protocol or device model with NetSim’s protocol editing facilities. Error detection  is a technique that enables reliable delivery of digital data over unreliable communication channels. Many communication channels are subject to channel noise, and thus errors may be introduced during transmission from the source to a receiver. Error detection techniques allow detecting such errors, while error correction enables reconstruction of the original data. Error detection is the detection of errors caused by noise or other impairments during transmission from the transmitter to the receiver.