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IPGlobalProperties.GetTcpIPv4Statistics Méthode

  • Référence

Définition

Espace de noms:
System.Net.NetworkInformation
Assembly:
System.Net.NetworkInformation.dll
Assembly:
System.dll
Assembly:
netstandard.dll
Source:
IPGlobalProperties.cs
Source:
IPGlobalProperties.cs
Source:
IPGlobalProperties.cs

Fournit des données statistiques TCP/IPv4 (Transmission Control Protocol / Internet Protocol version 4) pour l'ordinateur local.

public:
 abstract System::Net::NetworkInformation::TcpStatistics ^ GetTcpIPv4Statistics();
public abstract System.Net.NetworkInformation.TcpStatistics GetTcpIPv4Statistics ();
[System.Runtime.Versioning.UnsupportedOSPlatform("android")]
public abstract System.Net.NetworkInformation.TcpStatistics GetTcpIPv4Statistics ();
abstract member GetTcpIPv4Statistics : unit -> System.Net.NetworkInformation.TcpStatistics
[<System.Runtime.Versioning.UnsupportedOSPlatform("android")>]
abstract member GetTcpIPv4Statistics : unit -> System.Net.NetworkInformation.TcpStatistics
Public MustOverride Function GetTcpIPv4Statistics () As TcpStatistics

Retours

TcpStatistics

Objet TcpStatistics qui fournit des statistiques de trafic TCP/IPv4 pour l'ordinateur local.

Attributs
UnsupportedOSPlatformAttribute

Exceptions

NetworkInformationException

L'appel à la fonction Win32 GetTcpStatistics a échoué.

Exemples

L’exemple suivant affiche les statistiques TCP/IP pour l’ordinateur local.

void ShowTcpStatistics( NetworkInterfaceComponent version )
{
   IPGlobalProperties ^ properties = IPGlobalProperties::GetIPGlobalProperties();
   TcpStatistics ^ tcpstat = nullptr;
   Console::WriteLine( "" );
   switch ( version )
   {
      case NetworkInterfaceComponent::IPv4:
         tcpstat = properties->GetTcpIPv4Statistics();
         Console::WriteLine( "TCP/IPv4 Statistics:" );
         break;

      case NetworkInterfaceComponent::IPv6:
         tcpstat = properties->GetTcpIPv6Statistics();
         Console::WriteLine( "TCP/IPv6 Statistics:" );
         break;

      default:
         throw gcnew ArgumentException( "version" );
         break;
   }
   Console::WriteLine( "  Minimum Transmission Timeout............. : {0}",
      tcpstat->MinimumTransmissionTimeout );
   Console::WriteLine( "  Maximum Transmission Timeout............. : {0}",
      tcpstat->MaximumTransmissionTimeout );
   Console::WriteLine( "  Connection Data:" );
   Console::WriteLine( "      Current  ............................ : {0}",
      tcpstat->CurrentConnections );
   Console::WriteLine( "      Cumulative .......................... : {0}",
      tcpstat->CumulativeConnections );
   Console::WriteLine( "      Initiated ........................... : {0}",
      tcpstat->ConnectionsInitiated );
   Console::WriteLine( "      Accepted ............................ : {0}",
      tcpstat->ConnectionsAccepted );
   Console::WriteLine( "      Failed Attempts ..................... : {0}",
      tcpstat->FailedConnectionAttempts );
   Console::WriteLine( "      Reset ............................... : {0}",
      tcpstat->ResetConnections );
   Console::WriteLine( "" );
   Console::WriteLine( "  Segment Data:" );
   Console::WriteLine( "      Received  ........................... : {0}",
      tcpstat->SegmentsReceived );
   Console::WriteLine( "      Sent ................................ : {0}",
      tcpstat->SegmentsSent );
   Console::WriteLine( "      Retransmitted ....................... : {0}",
      tcpstat->SegmentsResent );
   Console::WriteLine( "" );
}

public static void ShowTcpStatistics(NetworkInterfaceComponent version)
{
    IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
    TcpStatistics tcpstat = null;
    Console.WriteLine("");
    switch (version)
    {
        case NetworkInterfaceComponent.IPv4:
             tcpstat = properties.GetTcpIPv4Statistics();
            Console.WriteLine("TCP/IPv4 Statistics:");
            break;
        case NetworkInterfaceComponent.IPv6:
            tcpstat = properties.GetTcpIPv6Statistics();
            Console.WriteLine("TCP/IPv6 Statistics:");
            break;
        default:
            throw new ArgumentException("version");
        //    break;
    }
    Console.WriteLine("  Minimum Transmission Timeout............. : {0}",
        tcpstat.MinimumTransmissionTimeout);
    Console.WriteLine("  Maximum Transmission Timeout............. : {0}",
        tcpstat.MaximumTransmissionTimeout);

    Console.WriteLine("  Connection Data:");
    Console.WriteLine("      Current  ............................ : {0}",
    tcpstat.CurrentConnections);
    Console.WriteLine("      Cumulative .......................... : {0}",
        tcpstat.CumulativeConnections);
    Console.WriteLine("      Initiated ........................... : {0}",
        tcpstat.ConnectionsInitiated);
    Console.WriteLine("      Accepted ............................ : {0}",
        tcpstat.ConnectionsAccepted);
    Console.WriteLine("      Failed Attempts ..................... : {0}",
        tcpstat.FailedConnectionAttempts);
    Console.WriteLine("      Reset ............................... : {0}",
        tcpstat.ResetConnections);

    Console.WriteLine("");
    Console.WriteLine("  Segment Data:");
    Console.WriteLine("      Received  ........................... : {0}",
        tcpstat.SegmentsReceived);
    Console.WriteLine("      Sent ................................ : {0}",
        tcpstat.SegmentsSent);
    Console.WriteLine("      Retransmitted ....................... : {0}",
        tcpstat.SegmentsResent);

    Console.WriteLine("");
}

Remarques

TCP est un protocole de couche de transport qui est chargé d’envoyer et de recevoir de manière fiable des paquets de données. Il est défini dans IETF RFC 793.

Pour plus d’informations sur les statistiques de trafic TCP disponibles pour les applications, consultez la documentation de la TcpStatistics classe. Notez que l’objet retourné par cette méthode reflète les statistiques au moment de la création de l’objet TcpStatistics . Ces informations ne sont pas mises à jour dynamiquement.

S’applique à