How to Run Nam File in Ns2

What is Nam?

The design theory behind nam is created as an animator which is capable to read the large animation data sets that are extensible enough and capably deployed in various network visualization situations. Some limitations are there while designing the Nam file for the read simple animation event commands through the large trace file. It is capable to manage the large animation data sets with the minimum amount of information that is stored in the memory.

What is Ns2?

Ns2 is considered as the network simulator is deployed to perform the functions of multifaceted scenarios which are capably used to test the process. The results are quickly obtained for various ideas to be tested in the smaller time frame. The Ns2 is considered as the provision of topology visualization, enhanced simulation animation and TCL script generation.

Nam with Ns2

The Nam is mainly deployed for the network animator along with that Ns2 simulator is also used. The Ns trace files are accepted by the NAM and it presents the process of animation for the simulation.

While simulating Ns, the users are capable to create topology configurations, packet traces and layout information are functioning to trace the events based on Ns. The applications are capable to generate the Nam trace file. After the trace file generation, the process is ready for the animation process which is done through Nam. To start this process, Nam is capable to read the trace file, create topology, pop up the window, when the layout is required, the user have to pause the time 0. The functions of user interface are deployed to provide the control for Nam including various aspects of animation.

Steps to Run Nam File in Ns2

Create a source code for main file
The main source files are stored along with the filename without any whitespaces and that is stored in the folder name without the process of whitespaces
Open the terminal and verify the installed package
In the starting stage, the terminal is opened through pressing ctrl+alt+T buttons or else the users have to find that through searching in the software list that is installed
Change the location
The command cd is deployed to change the location details
Execute the main TCL file
The process is performed through implementing the main TCL file and that too through the utilization of the command sudo ./ns main.tcl which is mentioned above as a command includes ns as the keyword to call the network simulator process. The main id, tcl and file name are considered as the file extension
Select the Nam trace
After completing the implementation, the Nam trace file is selected for the Nam console process
Get the simulation
The main id, tcl and file name are considered as the file extension and it is used to implement the network simulator process to get the simulation process effectively
Execute the simulation results
The play button is pressed to start the simulation process

We ensure that we complete process of how to run Nam file in Ns2 with privacy, updated facts, expert remarks, an internal review, technical advice and many more concerning with our packages. In the following, we have listed out the notable process in the implementation of Ns2 code in Nam.

Ns2 Source Code for Execute the Nam

The simulation process is completed and two files are included such as OutEx1.nam and OutEx1.tr. These files are generated in the similar folder and the network animator is functioning in the finish procedure to the script call nam.exe with the file name denoted as,


proc finish {} {

global ns nf f

$ns flush-trace

close $nf

close $f

exec nam outEx1.nam &

exit 0

}

For your reference, our research professionals have highlighted the implementation of Nam which is essential for the research scholars to follow and the primary assistance to develop a lot and it is an enhancement for the research scholars.

Execute the Nam with Options


•	[ -S ] tracefile

•	[ -f configfile ]

•	[ -c cacheSize ]

•	[ -N appName ]

•	[ -P  peerName ]

•	[ -i interval ]

•	[ -t graphInput ]

•	[ -g geometry ]

The above mentioned are considered as the notable research options to implement Nam file in Ns2. In the following, we have highlighted the characteristics of the options based on Nam.

-S
It permits the synchronous X characteristics and it is simple graphics debugging for the UNIX system by running only X
-f
It is considered as the name of initialization files that have to be loaded during the startup and the users are capable to define some of the process in this file and that is denoted as trace file. For instance, the linkup and link down events are considered as the events of dynamic links in ns
-c
It is considered as the incomplete information, the maximum size of the cache are deployed to store the objects that are active while proceeding the backward animation
-P
Particularly the name of peer Nam application is highlighted and it is implemented through the synchronized with the implementation of Nam instance
Below, we have mentioned the details about -N with its application name specification and the names such as
starting the first nam instance (slave) by
nam -N <name #1> <trace file name #1>
start the second nam instance (which will be the master)
nam -N <name #2> <trace file name #2>
-N
The particular name of this Nam instance application is specified and the application name is utilized in later process mainly in the peer synchronization
-i
It is the data which includes the information that is not accurate and it includes the specific rate milliseconds are considered as the screen update rate. The default rate is 50ms for instance 20 frames per second. The X server is not capable to proceed with the similar rate in that process the animation is processing to run fast and the X server is permitting this utilization
-t
It is considered as the incomplete information and that is to instruct Nam for the utilization of tkgraph and specify the input file name for tkgraph
-g
It is about the specification of geometry of the window upon startup and the format is described in X(1)

Queues in Nam

The nam trace queue is depicted as the statement that is provided and highlighted in the following.


q -t time -s src -d dst -a attr

The queues are visualized in Nam are in the straight line with some packets what they are packet. The events based on queue trace are specifying the flag which is based on the orientation of the line queue. Mainly, counter clockwise is considered as the angle which is occurred between the queue line and horizontal line.


q -t * -s 0 -d 1 -a 0.5

The above mentioned line is specifying the queue that is growing vertically upwards the respect towards the screen. Hereby, the 0.5 is to highlight the angle of queue line that is called as pi/2.

Node Marking in Nam

The node marking is about the colored concentric hexagons, boxes and circles around the nodes. The process is created through the command line,


m -t time -n mark name -s node -c color -h shape -o color

In addition, the created nodes and shapes are deleted through the command line,


m -t time -n mark name -s node -X

Most significantly, when the node mark is created once and it cannot be changed as the shape. Mostly, the apt choices for the shapes are hexagon, box and circle. The lowercase strings are functioning as the above mentioned process.


m -t 4 -s 0 -n m1 -c blue -h circle

It is highlighted as the trace showing node mark with the indication of node 0 and that is marked through blue circle at the time of 4.0 and its mark is named as ml.

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