Skip to main content

Recompiling NS2 (Network Simulator 2)

Assumptions:

I have installed my ns-allinone-2.34 under /home/pradeep/ns-allinone-2.34
Path is been set in the .bash_profile (which are located at /home/pradeep/) in fedora and .bashrc in ubuntu

There are two ways in which the NS2 can be recompiled

1. You modify the existing algorithm (use the same header and the C++ source files)

2. Adding new files (adding new header and C++ source files)

In first method,

Step 1: open the shell prompt and go to the ns-allinone-2.34/ns-2.34/ folder(there are 3 makefiles, Makefile.vc, Makefile, Makefile.in, for adding any new file should be done at the Makefile.in file)

Step 2: Once the existing algorithm is changed (after modifying the existing header and the C++ source file), go to step 1

Step 3: execute the command, make (the make command executes the instructions given in the Makefile.in) and press enter, If you have no errors in your modified code, then the compilation will be success, else you may get errors, which needs to be corrected

Step 4: Test your tcl script for the new algorithm

In the second Method,

Step 1: open the shell prompt and go to the /home/pradeep/ns-allinone-2.34/ns-2.34/ folder(there are 3 makefiles namely Makefile.vc, Makefile, Makefile.in, for adding any new file should be done at the Makefile.in file)

Step 2: You may create new header and C++ source files for your new proposed algorithm and hence you need to tell that information to the Makefile.in (which is available in /home/pradeep/ns-allinone-2.34/ns-2.34/). For example, assume i created two files tcpnew.h and tcpnew.cc

Step 3: Put all your files inside a folder (for Example create a new folder tcpnew) and put the tcpnew folder under the folder /home/pradeep/ns-allinone-2.34/ns-2.34/

Step 4: Now open the Makefile.in using any editor (usually vi or gedit) and add the folder information to the OBJ_CC variable)

Step 5: anywhere inside the OBJ_CC variable, put the tcpnew folder information like this  tcpnew/tcpnew.o  \

Step 6: after editing the file entry, go to step 1 and execute the command make and press enter. If you have no errors in your modified code, then the compilation will be success, else you may get errors, which needs to be corrected.

Step 7: Test your tcl script for the new Algorithm.

Comments

  1. hello sir

    sir u hav done a great job. i really lyked ur site.. its really helpful.

    ReplyDelete
  2. Sir
    i have tried your procedure.
    i have added tcp-nreno.cc (copy of tcp-reno with changed name) and tcpnew.h (tcp.h with changed name) to folder newtcp. I have make entry in make.in about newtcp/tcp-nreno.o and './configure' ns and 'make' it. And i get following error :

    newtcp/tcp-nreno.cc: In member function ‘virtual TclObject* RenoTcpClass::create(int, const char* const*)’:
    newtcp/tcp-nreno.cc:38:15: error: expected type-specifier before ‘NRenoTcpAgent’
    newtcp/tcp-nreno.cc:38:15: error: expected ‘)’ before ‘NRenoTcpAgent’
    newtcp/tcp-nreno.cc:38:30: error: cannot convert ‘int*’ to ‘TclObject*’ in return
    newtcp/tcp-nreno.cc: At global scope:
    newtcp/tcp-nreno.cc:42:5: error: ‘NRenoTcpAgent’ has not been declared
    newtcp/tcp-nreno.cc: In function ‘int window()’:
    newtcp/tcp-nreno.cc:49:16: error: ‘cwnd_’ was not declared in this scope
    newtcp/tcp-nreno.cc:49:25: error: ‘dupwnd_’ was not declared in this scope
    newtcp/tcp-nreno.cc:50:6: error: ‘frto_’ was not declared in this scope
    newtcp/tcp-nreno.cc:53:20: error: ‘force_wnd’ was not declared in this scope
    newtcp/tcp-nreno.cc:55:16: error: ‘wnd_’ was not declared in this scope
    newtcp/tcp-nreno.cc: At global scope:
    newtcp/tcp-nreno.cc:60:8: error: ‘NRenoTcpAgent’ has not been declared
    newtcp/tcp-nreno.cc: In function ‘double windowd()’:
    newtcp/tcp-nreno.cc:67:15: error: ‘cwnd_’ was not declared in this scope
    newtcp/tcp-nreno.cc:67:23: error: ‘dupwnd_’ was not declared in this scope
    newtcp/tcp-nreno.cc:68:12: error: ‘wnd_’ was not declared in this scope
    newtcp/tcp-nreno.cc: At global scope:
    newtcp/tcp-nreno.cc:73:1: error: ‘NRenoTcpAgent’ does not name a type
    newtcp/tcp-nreno.cc:77:6: error: ‘NRenoTcpAgent’ has not been declared
    newtcp/tcp-nreno.cc: In function ‘void recv(Packet*, Handler*)’:
    newtcp/tcp-nreno.cc:81:13: error: ‘qs_approved_’ was not declared in this scope
    newtcp/tcp-nreno.cc:81:50: error: ‘last_ack_’ was not declared in this scope
    newtcp/tcp-nreno.cc:82:17: error: ‘endQuickStart’ was not declared in this scope
    newtcp/tcp-nreno.cc:83:13: error: ‘qs_requested_’ was not declared in this scope
    newtcp/tcp-nreno.cc:84:38: error: ‘processQuickStart’ was not declared in this scope
    newtcp/tcp-nreno.cc:93:26: error: ‘lastreset_’ was not declared in this scope
    newtcp/tcp-nreno.cc:98:4: error: ‘nackpack_’ was not declared in this scope
    newtcp/tcp-nreno.cc:99:2: error: ‘ts_peer_’ was not declared in this scope
    newtcp/tcp-nreno.cc:101:43: error: ‘ecn_’ was not declared in this scope
    newtcp/tcp-nreno.cc:102:20: error: ‘ecn’ was not declared in this scope
    newtcp/tcp-nreno.cc:103:17: error: ‘recv_helper’ was not declared in this scope
    newtcp/tcp-nreno.cc:104:22: error: ‘recv_frto_helper’ was not declared in this scope

    Can you please help me with it?

    ReplyDelete

Post a Comment

Popular posts from this blog

AWK Scripts for NS2 to process data from Trace Files

AWK Scripts are very good in processing the data from the log (trace files) which we get from NS2. If you want to process the trace file manually, here is the detailHere is a sample of trace file from NS2 (However ns2 supports a new type of trace file also), but this post will make you understand the old trace format only.r 0.030085562 _0_ MAC  --- 0 message 32 [0 ffffffff 1 800] ------- [1:255 -1:255 32 0] r 0.030110562 _0_ RTR  --- 0 message 32 [0 ffffffff 1 800] ------- [1:255 -1:255 32 0] s 1.119926192 _0_ RTR  --- 1 message 32 [0 0 0 0] ------- [0:255 -1:255 32 0]
AWK Scripts are very good in processing the data column wise. For example
the first column in the above trace file represents r, s which indicates receive, sent respectively. If we want to trace the entire r and s alone from this trace file we can represent it as $1
So
$1 represents ACTION
$2 Time
$3 Node ID
$4 Layer
$5 Flags
$6 seqno
$7 type
$8 Size
$14 Energy (if the network nodes includes EnergyModel)To run the awk script in Li…

nam installation - Segmentation Fault (Solved)

If you are encountering "Segmentation Fault" error while running nam in Ubuntu 14.04 or Linux Mint 17+ editions, this post will be helpful for you.

Download the nam file from this link

First, remove the nam which was installed earlier using the following command 

pradeep@localhost $] sudo apt-get remove nam

and install the new nam which was downloaded just now. go to the folder where the file was downloaded and issue the following command

pradeep@localhost $]  sudo dpkg --install nam_1.15-10_i386.deb

See the screenshot below to install and use nam

 T S Pradeep Kumar

Installation of ns2 in Ubuntu 18.04 - NS2 Tutorial # 2

ns2 installation in Ubuntu 18.04

Unlike earlier version of ubuntu, the 18,04 version does not support the direct installation of ns2, because of the latest C/C++ compiler (7.x), but the latest C/C++ compiler supported by ns2 is gcc-4.8. So this post and video tells you about the installation of gcc-4.8 version, then ns2 and then configuration.
Here are the steps, Please follow the video given below for more information.

$] tar zxvf ns-allinone-2.35.tar.gz


$] sudo apt install gcc-4.8 g++-4.8

if you have installed ubuntu just now, you can try these commands also in the beginning

$] sudo apt update
$] sudo apt install build-essential autoconf automake libxmu-dev

$] cd ns-allinone-2.35/ns-2.35
$] gedit Makefile.in
$] gedit linkstate/ls.h

line number 137, change erase to this->erase
$] cd ..
$] ./install

export PATH=$PATH:/home/pradeepkumar/ns-allinone-2.35/bin:/home/pradeepkumar/ns-allinone-2.35/tcl8.5.10/unix:/home/pradeepkumar/ns-allinone-2.35/tk8.5.10/unix
export LD_LIBRARY_PATH=$L…