如何使用ns3中的屬性

Question

如何使用ns3中的屬性設置值？我有一個文件中定義的類的屬性，我嘗試在我的主函數中設置。我無法改變它們。

我的問題：

這是定義：

TypeId MpTcpSocketBase::GetTypeId(void) 
{ 
    static TypeId tid = TypeId("ns3::MpTcpSocketBase") 
     .SetParent<TcpSocketBase>() 
     .AddConstructor<MpTcpSocketBase>() 
     .AddAttribute("CongestionControl", 
        "Congestion control algorithm", 
      EnumValue(Linked_Increases), 
      MakeEnumAccessor(&MpTcpSocketBase::SetCongestionCtrlAlgo), 
      MakeEnumChecker(Uncoupled_TCPs, "Uncoupled_TCPs", 
          Fully_Coupled, "Fully_Coupled", 
          RTT_Compensator, "RTT_Compensator", 
          Linked_Increases, "Linked_Increases", 
          COUPLED_INC,  "COUPLED_INC", 
          COUPLED_EPSILON, "COUPLED_EPSILON", 
          COUPLED_SCALABLE_TCP, "COUPLED_SCALABLE_TCP", 
          COUPLED_FULLY, "COUPLED_FULLY", 
          UNCOUPLED, "UNCOUPLED")) 

     .AddAttribute("SchedulingAlgorithm", 
        "Algorithm for data distribution between sub-flows", 
      EnumValue(Round_Robin), 
      MakeEnumAccessor(&MpTcpSocketBase::SetDataDistribAlgo), 
      MakeEnumChecker(Round_Robin, "Round_Robin")) 

     .AddAttribute("PathManagement", 
        "Mechanism for establishing new sub-flows", 
      EnumValue(FullMesh), 
      MakeEnumAccessor(&MpTcpSocketBase::SetPathManager), 
      MakeEnumChecker(Default,"Default", 
          FullMesh, "FullMesh", 
          NdiffPorts, "NdiffPorts")) 

     .AddAttribute("MaxSubflows", 
        "Maximum number of sub-flows per each mptcp connection", 
      UintegerValue(8), 
      MakeUintegerAccessor(&MpTcpSocketBase::maxSubflows), 
      MakeUintegerChecker<uint8_t>()) 

    .AddAttribute("RandomGap", 
      "Random gap between subflows setup", 
      UintegerValue(50), 
      MakeUintegerAccessor(&MpTcpSocketBase::m_rGap), 
      MakeUintegerChecker<uint32_t>()) 

     .AddAttribute("Subflows", 
        "The list of sub-flows associated to this protocol.", 
      ObjectVectorValue(), 
      MakeObjectVectorAccessor(&MpTcpSocketBase::subflows), 
      MakeObjectVectorChecker<MpTcpSocketBase>()) 

     .AddAttribute ("ShortFlowTCP", "Use TCP for short flows", 
      BooleanValue (false), 
      MakeBooleanAccessor (&MpTcpSocketBase::m_shortFlowTCP), 
      MakeBooleanChecker()) 

     .AddAttribute ("AlphaPerAck", " Update alpha per ACK ", 
      BooleanValue (false), 
      MakeBooleanAccessor (&MpTcpSocketBase::m_alphaPerAck), 
      MakeBooleanChecker()) 

     .AddAttribute ("ShortPlotting", " Activate large flow plotting ", 
      BooleanValue (false), 
      MakeBooleanAccessor (&MpTcpSocketBase::m_shortPlotting), 
      MakeBooleanChecker()) 

     .AddAttribute ("LargePlotting", " Activate short flow plotting ", 
      BooleanValue (false), 
      MakeBooleanAccessor (&MpTcpSocketBase::m_largePlotting), 
      MakeBooleanChecker()); 

    return tid; 
} 

這是利用：

Config::SetDefault("ns3::Ipv4GlobalRouting::FlowEcmpRouting", BooleanValue(true)); 
    Config::SetDefault("ns3::TcpSocket::SegmentSize", UintegerValue(1400)); 
    Config::SetDefault("ns3::TcpSocket::DelAckCount", UintegerValue(0)); 
    Config::SetDefault("ns3::DropTailQueue::Mode", StringValue("QUEUE_MODE_PACKETS")); 
    Config::SetDefault("ns3::DropTailQueue::MaxPackets", UintegerValue(100)); 
    Config::SetDefault("ns3::TcpL4Protocol::SocketType", TypeIdValue(MpTcpSocketBase::GetTypeId())); 
    Config::SetDefault("ns3::MpTcpSocketBase::MaxSubflows", UintegerValue(8)); // Sink 
    Config::SetDefault("ns3::MpTcpSocketBase::CongestionControl", StringValue("Uncoupled_TCPs")); 
    //Config::SetDefault("ns3::MpTcpSocketBase::PathManagement", StringValue("NdiffPorts")); 

但沒有什麼是已經發生了變化，有沒有什麼辦法可以設置這個值在我的主要功能。

Answer 1

屬性的使用在manual