Queuing Models in NS2

Image
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…

NetAnim installation in NS3

NetAnim is a Network Animator that comes preloaded with ns3.  During compilation of ns3, #NetAnim may not compile.

There are other alternatives for installation of NetAnim, for more info, see this post

http://www.nsnam.com/2014/08/installing-netanim-software-for-ns3-in.html

This post will tell you to compile NetAnim that comes along with #ns3. Sometimes the above methods might not work, but the bundled netanim will work sure.
Here is the way to do...

$] sudo apt-get update
$] sudo apt-get install qt4-dev-tools qt4-qmake, qt4-qmake qt4-default
$] cd ns-allinone-3.24.1/netanim-3.106/
$] make clean
$] make
$] qmake NetAnim.pro
$] ./NetAnim file.xml 

The above commands will help to install NetAnim 

See the image given below,
NetAnim
NetAnim


T S Pradeep Kumar


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