Equivalent to JoinMulticast() function in ns3.19

[crazynet...@gmail.com]

I was trying to do csma multicast according to csma-multicast.cc present in src folder.I am using ns3.19 version.But I couldn't find JoinMulticast() function in this version.According to the example given in this link https://code.google.com/p/ns-3/source/browse/examples/csma-multicast.cc?r=54cb46af8003a3245ae5f6e83cf96d33d79ced2e there is JoinMulticast() function.But I couldn't use this function.Can anyone help me.If I use a different version of ns3 ,can it be solved?

[Konstantinos]

Hi,

The same example with CSMA multicast exists in NS-3.19 under /src/csma/examples/ folder.

Use that as a base of your work.

Regards,

K.

[network crazy]

Hi,I checked the example given in src/csma/csma-multicast.cc.But the problem is that I couldnt

 find the code to join a node to a multicast group.Is there any different way to join a node to a multicast group other than JoinMulticastGroup() Function.I checked so many versions of ns3.But I couldnt find code to join a multicast group.Even though they mentioned it as a step.But the original code is not present in anywhere

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[Tommaso Pecorella]

LMOtSfY (Let Me Open the Source for You)

src/csma/examples/csma-multicast.cc

Line 92 and following, I'll cite:

  NS_LOG_INFO ("Configure multicasting.");
  //
  // Now we can configure multicasting.  As described above, the multicast  
  // source is at node zero, which we assigned the IP address of 10.1.1.1  
  // earlier.  We need to define a multicast group to send packets to.  This
  // can be any multicast address from 224.0.0.0 through 239.255.255.255
  // (avoiding the reserved routing protocol addresses).

and then the multicast is set up. It's not user-friendly (i.e., there is no JoinMulticastGroup), but mind that using multicast isn't just joining a group. It is also setting up the multicast routers (and this is the hard part).

At the moment there is no multicast routing protocol (e.g., MLD, PIM) in ns-3.

T.

[network crazy]

@Tommaso Pecorella

I found what I was looking for.UDPSocket->MulticastJoinGroup (0,multicastGroup);

Thanks for the help