How to: Get Interface and Protocol Information

This sample shows how to read the TCP statistics of a network interface.

Example

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("");
}

Compiling the Code

This example requires:

• References to the System.Net namespace.