In general, network simulator 2 is defined as the Ns2 and it is the open source software and it is deployed to simulate the network scenarios. In addition, it analyses the output which is based on various network factors such as,

• Intrusion
• Error
• Delay
• Packet loss

This article includes some of the major keynotes based on the network simulator 2 such as simulation areas and the integration tools.

• Supportive simulation areas
• Satellite network
• Wireless sensor network
• Vehicular ad hoc network
• Mobile ad hoc network
• Integration tools with Ns2
• Sumo
• The integration of sumo with Ns2 is to perform the simulation based on VANET
• Xgraph
• The integration of Xgraph with Ns2 is used to draw the graph on X display which provides the data read from the data file and trace files
• Nam
• Mainly, Nam is defined as the Tcl / TK based animation tool which is deployed to view the network simulation which traces the network simulator 2

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