Queuing Models in NS2

M/M/1 is a system with poisson arrival time, servicing exponentially and a queue of unlimited capacity and type of FIFO Queue. This is the simplest queuing system.  NS2 supports various distributions like pareto, exponential, constant, unifrom, etc to handle the network dynamics and metrics. So it is very easy to test the given network link to monitor a given queue using any of these queuing models. The listing 3 and 4 are monitoring the link when DropTail queue is used with a capacity of finite and infinite. Listing 13.3 uses infinite capacity and Listing 13.4 uses Finite capacity The output screen shot is shown below the scripts for further understanding
Listing 3 – M/M/1 Queuing Model #new Simulator creation set ns [new Simulator] #trace file creation for capturing the UDP data set tf [open out.tr w] $ns trace-all $tf
#setting the exponential distribution param set lambda 30.0 set mu     33.0
#creation of nodes set n1 [$ns node] set n2 [$ns node] #The queue limit is 1Lakh as the capacity is infin…

Network Simulator 2 workshop

VIT University is conducting gravitas a technical carnival from 16th September 2011 to 18th September 2011. There are so many events scheduled for these days and there are lot a many workshops running in parallel.

Network Simulator 2 workshop is one such event happening on 17th September 2011 at VIT. Please reserve your seat as the seats are limited.

Go to the following url and please make a note of it. The registration fee for the workshop is INR 500 only. So register yourself for the workshop and get the benefits.

The following are the topics covered during the workshop.

Topics for the Session

(Morning Session - 3 hour session)

1. Introduction and installation of Network Simulation 2
2. Wired and Wireless Examples

Afternoon Session (3 hour Session)
1. Recompiling NS2
2. Case Study (Wireless and Wired Examples)

Resource Person

T S Pradeep Kumar

Fee and Duration

Rs. 500 and 6 hours

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