Ask Question up vote 0 down vote favorite The code is mainly trying to create two instances of server on two different ports and two instances of client also. Each client is having a p2p connection with a dedicated server. No concurrent communication

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int main(int argc, char *argv[])
{
CommandLine cmd;
cmd.Parse(argc, argv);
Time::SetResolution(Time::NS);
LogComponentEnable("UdpEchoClientApplication", LOG_LEVEL_INFO);
LogComponentEnable("UdpEchoServerApplication", LOG_LEVEL_INFO);

NodeContainer nodes1,nodes2;
nodes1.Create(2);
nodes2.Create(2);

PointToPointHelper pointToPoint1,pointToPoint2;
pointToPoint1.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
pointToPoint1.SetChannelAttribute("Delay", StringValue("2ms"));
pointToPoint2.SetDeviceAttribute("DataRate", StringValue("5Mbps"));
pointToPoint2.SetChannelAttribute("Delay", StringValue("2ms"));

NetDeviceContainer devices1,devices2;
devices1 = pointToPoint1.Install(nodes1);
devices2 = pointToPoint2.Install(nodes2);


InternetStackHelper stack1,stack2;
stack1.Install(nodes1);//
stack2.Install(nodes2);

Ipv4AddressHelper address1;
address1.SetBase("10.1.1.0", "255.255.255.0");
Ipv4AddressHelper address2;
address2.SetBase("10.5.4.0", "255.255.255.0");

Ipv4InterfaceContainer interfaces1 = address1.Assign(devices1);
Ipv4InterfaceContainer interfaces2 = address2.Assign(devices2);