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Installing ns-3.37 and ns-3.35 in Ubuntu | Ubuntu 22.04 | NS3

Multiple Versions of ns3 in Ubuntu 22.04 In this post, we are going to install two versions of ns3 namely ns-3.35 and ns-3.37  My OS is : Ubuntu 22.04 LTS (Long Term Support) ns-3.35 uses waf and (./waf --run scratch/first)  ns-3.37 uses cmake  (./ns3 run scratch/first.cc) So we will install both the packages  Go through the video for complete instructions To start with  $ sudo apt update  $ sudo apt install build-essential autoconf automake libxmu-dev g++ python3 python3-dev pkg-config sqlite3 cmake python3-setuptools git qtbase5-dev qtchooser qt5-qmake qtbase5-dev-tools gir1.2-goocanvas-2.0 python3-gi python3-gi-cairo python3-pygraphviz gir1.2-gtk-3.0 ipython3 openmpi-bin openmpi-common openmpi-doc libopenmpi-dev autoconf cvs bzr unrar gsl-bin libgsl-dev libgslcblas0 wireshark tcpdump sqlite sqlite3 libsqlite3-dev  libxml2 libxml2-dev libc6-dev libc6-dev-i386 libclang-dev llvm-dev automake python3-pip libxml2 libxml2-dev libboost-all-dev  I have downloaded both the versions of ns3 fr

Printing Routing Table in AODV: NS2

There are no automatic provisioning to print a routing table for a given node in ns2. However, using the tracefile generated using ns2, routing table can be printed, but one should be good enough in processing a file using awk, python or any other scripts.

The following code will make you print the routing table when you are using AODV Protocol.

Files to be modified:
~ns-2.35/aodv/aodv.h
~ns-2.35/aodv/aodv.cc

The RED colored code indicates the addition of these lines in to the existing codes.

The following line can be added to the aodv.h file inside the class AODV in the protected scope.  probably add the line after the rt_down() function.

void rt_print(nsaddr_t nodeid);

In the aodv.cc file, add the following entry anywhere, but probably after the end of rt_down() function. 
void  AODV::rt_print(nsaddr_t nodeid) {
FILE *fp;
fp = fopen("route_table.txt", "a");
aodv_rt_entry *rt;
for (rt=rtable.head();rt; rt = rt->rt_link.le_next) {
fprintf(fp, "NODE: %i %f %i %i %i %i %i %f %d \n", nodeid, CURRENT_TIME, rt->rt_dst, rt->rt_nexthop, rt->rt_hops, rt->rt_seqno, rt->rt_expire, rt->rt_flags);
}
fclose(fp);
}

The above function records the routing table entry in to a file called route_table.txt. 
The above code 
  • creates a file pointer inturn a file called route_table.txt under append mode.
  • it creates an pointer to routing table entry. 
  • processes from the head of the queue to the last and print these information to the file with pointer fp and 
  • finally close the file pointer. 
Finally the rt_print() function have to be called. This can be called from anywhere. Here is the function call in aodv.cc file. 
It is inside the void AODV::recvReply(Packet *p) {

if (ih->daddr() == index) { // If I am the original source
  // Update the route discovery latency statistics
  // rp->rp_timestamp is the time of request origination
    rt_print(index); // print this nodes whole routing table
    rt->rt_disc_latency[(unsigned char)rt->hist_indx] = (CURRENT_TIME - rp->rp_timestamp)
                                         / (double) rp->rp_hop_count;
    // increment indx for next time
    rt->hist_indx = (rt->hist_indx + 1) % MAX_HISTORY;
  } 

Once the above steps are done.  Open the terminal and go to the ~ns-2.35. folder and type the following commands one by one
prompt$] make
Once the compilation is successful, test any of the wireless tcl files with AODV protocol is the routing and run it using ns filename.tcl
If you need a testing file, download here
Here is the sample screenshot of the routing table
routing table
Print Routing Table in AODV

This post is taken and modified from www.elmurod.net
T S Pradeep Kumar

Comments

  1. I am following the procedure as above.. but I am not getting any output .. this code has debugged successfully but not getting txt file in output..

    ReplyDelete
  2. it is worked to me. thank ! how can print the distance from source to destination in the route table?

    ReplyDelete

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