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IPGlobalProperties.GetTcpIPv4Statistics Method

Provides Transmission Control Protocol/Internet Protocol version 4 (TCP/IPv4) statistical data for the local computer.

Namespace:  System.Net.NetworkInformation
Assembly:  System (in System.dll)
public abstract TcpStatistics GetTcpIPv4Statistics()

Return Value

Type: System.Net.NetworkInformation.TcpStatistics
A TcpStatistics object that provides TCP/IPv4 traffic statistics for the local computer.
ExceptionCondition
NetworkInformationException

The call to the Win32 function GetTcpStatistics failed.

TCP is a transport layer protocol that is responsible for reliably sending and receiving data packets. It is defined in IETF RFC 793.

For details on the TCP traffic statistics available to applications, see the TcpStatistics class documentation. Note that the object returned by this method reflects the statistics as of the time the TcpStatistics object is created. This information is not updated dynamically.

The following example displays the TCP/IP statistics for the local computer.

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("");
}
void ShowTcpStatistics(NetworkInterfaceComponent version)
{
    IPGlobalProperties* properties = IPGlobalProperties::GetIPGlobalProperties();
    TcpStatistics* tcpstat = 0;
    Console::WriteLine(S"");
    switch (version)
    {
    case NetworkInterfaceComponent::IPv4:
        tcpstat = properties->GetTcpIPv4Statistics();
        Console::WriteLine(S"TCP/IPv4 Statistics:");
        break;
    case NetworkInterfaceComponent::IPv6:
        tcpstat = properties->GetTcpIPv6Statistics();
        Console::WriteLine(S"TCP/IPv6 Statistics:");
        break;
    default:
        throw new ArgumentException(S"version");
        break;
    }
    Console::WriteLine(S"  Minimum Transmission Timeout............. : {0}", __box(tcpstat->MinimumTransmissionTimeOut));
    Console::WriteLine(S"  Maximum Transmission Timeout............. : {0}", __box(tcpstat->MaximumTransmissionTimeOut));

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

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

    Console::WriteLine(S"");
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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