+ // tcpModel are:
+ // "ns3::TcpNewReno"
+ // "ns3::TcpReno"
+ // "ns3::TcpTahoe"
+
+ ns3::Config::SetDefault ("ns3::TcpSocket::SegmentSize", ns3::UintegerValue (1000));
+ ns3::Config::SetDefault ("ns3::TcpSocket::DelAckCount", ns3::UintegerValue (1));
+ ns3::Config::SetDefault ("ns3::TcpSocketBase::Timestamp", ns3::BooleanValue (false));
+
+ if (TcpProtocol == "default") {
+ /* nothing to do */
+
+ } else if (TcpProtocol == "Reno") {
+ XBT_INFO("Switching Tcp protocol to '%s'", TcpProtocol.c_str());
+ ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpReno"));
+
+ } else if (TcpProtocol == "NewReno") {
+ XBT_INFO("Switching Tcp protocol to '%s'", TcpProtocol.c_str());
+ ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpNewReno"));
+
+ } else if (TcpProtocol == "Tahoe") {
+ XBT_INFO("Switching Tcp protocol to '%s'", TcpProtocol.c_str());
+ ns3::Config::SetDefault ("ns3::TcpL4Protocol::SocketType", ns3::StringValue("ns3::TcpTahoe"));
+
+ } else {
+ xbt_die("The ns3/TcpModel must be: NewReno or Reno or Tahoe");
+ }
+}
+
+void ns3_add_cluster(const char* id, double bw, double lat) {
+ ns3::NodeContainer Nodes;
+
+ for (unsigned int i = number_of_clusters_nodes; i < Cluster_nodes.GetN(); i++) {
+ Nodes.Add(Cluster_nodes.Get(i));
+ XBT_DEBUG("Add node %u to cluster", i);
+ }
+ number_of_clusters_nodes = Cluster_nodes.GetN();
+
+ XBT_DEBUG("Add router %u to cluster", nodes.GetN() - Nodes.GetN() - 1);
+ Nodes.Add(nodes.Get(nodes.GetN()-Nodes.GetN()-1));
+
+ xbt_assert(Nodes.GetN() <= 65000, "Cluster with NS3 is limited to 65000 nodes");
+ ns3::CsmaHelper csma;
+ csma.SetChannelAttribute("DataRate", ns3::DataRateValue(ns3::DataRate(bw * 8))); // NS3 takes bps, but we provide Bps
+ csma.SetChannelAttribute("Delay", ns3::TimeValue(ns3::Seconds(lat)));
+ ns3::NetDeviceContainer devices = csma.Install(Nodes);
+ XBT_DEBUG("Create CSMA");
+
+ std::string addr = simgrid::xbt::string_printf("%d.%d.0.0", number_of_networks, number_of_links);
+ XBT_DEBUG("Assign IP Addresses %s to CSMA.", addr.c_str());
+ ns3::Ipv4AddressHelper ipv4;
+ ipv4.SetBase(addr.c_str(), "255.255.0.0");
+ interfaces.Add(ipv4.Assign (devices));
+
+ if(number_of_links == 255){
+ xbt_assert(number_of_networks < 255, "Number of links and networks exceed 255*255");
+ number_of_links = 1;
+ number_of_networks++;
+ }else{
+ number_of_links++;