Determining the network connection link speed

Question

How do I programmatically determine the network connection link speed for an active network connection - like Task Manager shows you in the Networking tab? I\'m not really a

Answer 1

.NET way how to know adapter speed is

IPGlobalProperties computerProperties = IPGlobalProperties.GetIPGlobalProperties();
NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
if ( nics != null )
    for (int i = 0; i < nics.Length; i++)
        Console.WriteLine("Adapter '{0}' speed : {1}", nics[i].Name, nics[i].Speed);

Some adapters are tunnels, so their speed will be returned as 0. Read NetworkInterface documentation on the MSDN for more information.