NS3 SDN PROJECTS

Sample code for SDN projects:
CsmaHelper csma;
csma.SetChannelAttribute (“DataRate”, DataRateValue (5000000));
csma.SetChannelAttribute (“Delay”, TimeValue (MilliSeconds (2)));

// Create the csma links, from each terminal to the switch
NetDeviceContainer terminalDevices;
NetDeviceContainer switchDevices;
for (int i = 0; i < 4; i++)
{
NetDeviceContainer link = csma.Install (NodeContainer (terminals.Get (i), csmaSwitch));
terminalDevices.Add (link.Get (0));
switchDevices.Add (link.Get (1));
}

// Create the switch netdevice, which will do the packet switching
Ptr switchNode = csmaSwitch.Get (0);
OpenFlowSwitchHelper swtch;

if (use_drop)
{
Ptr controller = CreateObject ();
swtch.Install (switchNode, switchDevices, controller);
}
else
{
Ptr controller = CreateObject ();
if (!timeout.IsZero ()) controller->SetAttribute (“ExpirationTime”, TimeValue (timeout));
swtch.Install (switchNode, switchDevices, controller);
}

// Add internet stack to the terminals
InternetStackHelper internet;
internet.Install (terminals);