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Telnet and FTP in Wired networks using NS2 (Network Simulator 2)

Telnet and FTP for a Wired Networks This post tells about the use of Telnet and FTP in Network Simulator 2 for a wired network. This can be extended to a wireless network as well. The following is the source code for implementing Telnet and FTP application in a Wired network scenario.  The network looks like this: Telnet in NS2 Node 0 to Node 2 is enabled with Telnet Application and Node 1 to Node 3 is enabled with FTP Application.  Save the following file as wired.tcl #=================================== # Simulation parameters setup #=================================== set val(stop) 10.0 ;# time of simulation end #=================================== # Initialization #=================================== #Create a ns simulator set ns [new Simulator] #Open the NS trace file set tracefile [open out.tr w] $ns trace-all $tracefile #Open the NAM trace file set namfile [open out.nam w] $ns namtrace-all $namfile #=================================== # Nodes

Ptolemy II Installation in Ubuntu 22.04

Installation of Ptolemy II in Ubuntu 22.04
This post shows the installation instructions of Ptolemy II in Windows 11 and Ubuntu 22.04 Operating System. 
Ptolemy II is used to simulate and emulate discrete systems, Synchronous dataflow, dynamic Dataflow, FSM, etc. The software is free and open source and its based on Java. 

The complete instructions can be found in this video 


Tools needed:
1. JDK is needed (preferably JDK 11, if you have already another version of JDK, no issues you can install JDK 11 as well and you can change the runtime java based on the need. For more details on how to switch the java version in Ubuntu, Check this video)

2. Ptolemy Software (can be downloaded from here

Step 1: Getting ready with your Ubuntu 22.04 OS

Run the following commands 

$ sudo apt update 
$ sudo apt install openjdk-11-jdk build-essential autoconf automake libxmu-dev

Step 2 - Extract the ptolemy software through the GUI window and set the environmental variable
Right click over the file and click "Extract Here"
Set the PTII environment as per the following commands.
Open the terminal and open the file using the command 

$ gedit ~/.bashrc
and copy the following line in the line number 4

export PTII=$HOME/ptII11.0.1.src/ptII11.0.1

Step 3: Installation of Ptolemy II 
I have installed in my home folder as per this path (/home/pradeepkumar/ptII11.0.1.src/ptII11.0.1/) 

Open a terminal and execute the following commands 

$ cd ptII11.0.1.src/ptII11.0.1/
$ ./configure --enable-verbose 
$ make 
$ cd bin 
$ ./vergil 

Once the installation over, you can open the vergil software and it shows the screenshot like this.
Ptolemy II
Ptolemy II


Then you can proceed to go to the documentation and other examples there of. For more details watch the Youtube video




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