TcpStatistics Class
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TcpStatistics Class

 

Provides Transmission Control Protocol (TCP) statistical data.

Namespace:   System.Net.NetworkInformation
Assembly:  System (in System.dll)

System.Object
  System.Net.NetworkInformation.TcpStatistics

public abstract class TcpStatistics

NameDescription
System_CAPS_protmethodTcpStatistics()

Initializes a new instance of the TcpStatistics class.

NameDescription
System_CAPS_pubpropertyConnectionsAccepted

Gets the number of accepted Transmission Control Protocol (TCP) connection requests.

System_CAPS_pubpropertyConnectionsInitiated

Gets the number of Transmission Control Protocol (TCP) connection requests made by clients.

System_CAPS_pubpropertyCumulativeConnections

Specifies the total number of Transmission Control Protocol (TCP) connections established.

System_CAPS_pubpropertyCurrentConnections

Gets the number of current Transmission Control Protocol (TCP) connections.

System_CAPS_pubpropertyErrorsReceived

Gets the number of Transmission Control Protocol (TCP) errors received.

System_CAPS_pubpropertyFailedConnectionAttempts

Gets the number of failed Transmission Control Protocol (TCP) connection attempts.

System_CAPS_pubpropertyMaximumConnections

Gets the maximum number of supported Transmission Control Protocol (TCP) connections.

System_CAPS_pubpropertyMaximumTransmissionTimeout

Gets the maximum retransmission time-out value for Transmission Control Protocol (TCP) segments.

System_CAPS_pubpropertyMinimumTransmissionTimeout

Gets the minimum retransmission time-out value for Transmission Control Protocol (TCP) segments.

System_CAPS_pubpropertyResetConnections

Gets the number of RST packets received by Transmission Control Protocol (TCP) connections.

System_CAPS_pubpropertyResetsSent

Gets the number of Transmission Control Protocol (TCP) segments sent with the reset flag set.

System_CAPS_pubpropertySegmentsReceived

Gets the number of Transmission Control Protocol (TCP) segments received.

System_CAPS_pubpropertySegmentsResent

Gets the number of Transmission Control Protocol (TCP) segments re-sent.

System_CAPS_pubpropertySegmentsSent

Gets the number of Transmission Control Protocol (TCP) segments sent.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

Instances of this class are returned by the GetTcpIPv4Statistics and GetTcpIPv6Statistics methods, to give applications access to TCP traffic information.

The information in this class correlates to the management information objects described in http://www.ietf.org/rfc/rfc2012.txt.

The following code example displays the TCP statistics for the specified address family.

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("");
}

.NET Framework
Available since 2.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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