語言

TcpStatistics.FailedConnectionAttempts 屬性

定義

命名空間:
System.Net.NetworkInformation
組件:
netstandard.dll, System.Net.NetworkInformation.dll
組件:
System.Net.NetworkInformation.dll
組件:
System.dll
組件:
netstandard.dll
來源:
TcpStatistics.cs
來源:
TcpStatistics.cs

取得失敗的傳輸控制協定（TCP）連線嘗試次數。

public:
 abstract property long FailedConnectionAttempts { long get(); };
public abstract long FailedConnectionAttempts { get; }
member this.FailedConnectionAttempts : int64
Public MustOverride ReadOnly Property FailedConnectionAttempts As Long

屬性值

Int64

一個 Int64 指定TCP連線失敗次數的值。

範例

以下程式碼範例顯示連線資訊。

public static void ShowTcpConnectionStatistics()
{
    IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
    TcpStatistics tcpstat = properties.GetTcpIPv4Statistics();

    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("      Errors .............................. : {0}",
        tcpstat.ErrorsReceived);
    Console.WriteLine();
}

Public Shared Sub ShowTcpConnectionStatistics() 
    Dim properties As IPGlobalProperties = IPGlobalProperties.GetIPGlobalProperties()
    Dim tcpstat As TcpStatistics = properties.GetTcpIPv4Statistics()
    
    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("      Errors .............................. : {0}", tcpstat.ErrorsReceived)

End Sub

備註

IETF RFC 2012 正式定義此值為：「TCP 連線從 SYN-SENT 狀態或 SYN-RCVD 狀態直接轉換至 CLOSED 狀態的次數，加上 TCP 連線從 SYN-RCVD 狀態直接轉換至 LISTEN 狀態的次數。」

適用於