What is NS2 tutorial?
Ns2 Tutorial is a discrete event simulator also for networking research and also work at packet level research. It also also simulates both wired and also wireless network. Ns2 was Developed by UC Berkeley and also is currently maintained by usc. Nam.
What is the use of NS in Java simulator?
set ns [new Simulator] The simulator object has member functions which enables to create the nodes and define the links between them. The class simulator contains all the basic functions. Since ns was defined to handle the Simulator object, the command $ns is used for using the functions belonging to the simulator class.
What is the use of $NS command in Linux?
Since ns was defined to handle the Simulator object, the command $ns is used for using the functions belonging to the simulator class. In the network topology nodes can be added in the following manner : Traffic agents (TCP, UDP etc.) and traffic sources (FTP, CBR etc.) must be set up if the node is not a router.
How to call subprocesses within another process in ns2?
To call subprocesses within another process, exec is used, which creates a subprocess and waits for it to complete. To be able to run a simulation scenario, a network topology must first be created. In ns2, the topology consists of a collection of nodes and links.
What is the output of the second part of NS2?
The output of the second part is the CCC programs, which are redirected using a redirection operator (i.e., “>”), to the CCC ﬁle gen/ns_tcl.cc. 3.8 Chapter Summary NS2 is a network simulator tool consisting of OTcl and CCC programming languages.
What are the layers in network simulator NS2?
Issariyakul and E. Hossain,Introduction to Network Simulator NS2, DOI 10.1007/978-1-4614-1406-3 12, © Springer Science+Business Media, LLC 2012 293 294 12 Wireless Mobile Ad Hoc Networks layer, data link layer, MAC layer, and physical layer, respectively.
What are the different types of NS2 modules?
Based on the functionality, NS2 modules (or objects) can be classiﬁed into four following types: •Network objectsare responsible for sending, receiving, creating, and destroy- ing packet-related objects. Since these objects are those derived from class NsObject, they will be referred to hereafter as NsObjects.