NetworkInterface.Speed Property

Reference

Definition

Namespace:: System.Net.NetworkInformation

Assemblies:: netstandard.dll, System.Net.NetworkInformation.dll

Assembly:: System.Net.NetworkInformation.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Source:: NetworkInterface.cs

Source:: NetworkInterface.cs

Source:: NetworkInterface.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets the speed of the network interface.

public:
 virtual property long Speed { long get(); };

public:
 abstract property long Speed { long get(); };

public virtual long Speed { get; }

public abstract long Speed { get; }

member this.Speed : int64

Public Overridable ReadOnly Property Speed As Long

Public MustOverride ReadOnly Property Speed As Long

Property Value

Int64

A Int64 value that specifies the speed in bits per second.

Examples

The following code example demonstrates displaying the speed of interfaces on the local computer.

void ShowInterfaceSpeedAndQueue()
{
   array<NetworkInterface^>^adapters = NetworkInterface::GetAllNetworkInterfaces();
   System::Collections::IEnumerator^ myEnum9 = adapters->GetEnumerator();
   while ( myEnum9->MoveNext() )
   {
      NetworkInterface ^ adapter = safe_cast<NetworkInterface ^>(myEnum9->Current);
      IPInterfaceProperties ^ properties = adapter->GetIPProperties();
      IPv4InterfaceStatistics ^ stats = adapter->GetIPv4Statistics();
      Console::WriteLine( adapter->Description );
      Console::WriteLine( "     Speed .................................: {0}", 
         adapter->Speed );
      Console::WriteLine( "     Output queue length....................: {0}", 
         stats->OutputQueueLength );
   }
}

public static void ShowInterfaceSpeedAndQueue()
{
    NetworkInterface[] adapters = NetworkInterface.GetAllNetworkInterfaces();
    foreach (NetworkInterface adapter in adapters)
    {
        IPInterfaceProperties properties = adapter.GetIPProperties();
        IPv4InterfaceStatistics stats = adapter.GetIPv4Statistics();
         Console.WriteLine(adapter.Description);
        Console.WriteLine("     Speed .................................: {0}",
            adapter.Speed);
        Console.WriteLine("     Output queue length....................: {0}",
            stats.OutputQueueLength);
    }
}

Public Shared Sub ShowInterfaceSpeedAndQueue() 
    Dim adapters As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
    Dim adapter As NetworkInterface
    For Each adapter In  adapters
        Dim properties As IPInterfaceProperties = adapter.GetIPProperties()
        Dim stats As IPv4InterfaceStatistics = adapter.GetIPv4Statistics()
        Console.WriteLine(adapter.Description)
        Console.WriteLine("     Speed .................................: {0}", adapter.Speed)
        Console.WriteLine("     Output queue length....................: {0}", stats.OutputQueueLength)
    Next adapter

End Sub

Remarks

The value returned by this property is reported by the network interface. It is not computed dynamically.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0, 2.1

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