How to query specific adapters in Win32_PerfFormattedData_Tcpip_NetworkInterface?

Question

Hi all,

The title says it all - how can I query specific adapters (ideally based on the IP address) from Win32_PerfFormattedData_Tcpip_NetworkInterface? I've spent a while googling this issue, but I didn't come up with a solution.

I tried using Win32_NetworkAdapter and Win32_NetworkAdapterConfiguration, however, I cannot link these to the performance data.

As I happen to have more than one network adapter on certain systems I cannot differentiate which adapter the returned values belong to - any ideas?

Thank you

G.

Answer 1

            ConnectionOptions connection = new ConnectionOptions();
            ManagementScope scope = new ManagementScope("\\root\\CIMV2", connection);
            scope.Connect();

            ObjectQuery query = new ObjectQuery(
                "SELECT * FROM Win32_PerfFormattedData_Tcpip_NetworkInterface");

            ManagementObjectSearcher searcher =
                new ManagementObjectSearcher(scope, query);

            foreach (ManagementObject queryObj in searcher.Get())
            {
                Console.WriteLine("Name: {0}", queryObj["Name"]);
                Console.WriteLine("Current Bandwidth: {0}", queryObj["CurrentBandwidth"]);
            }

My output was

Name: Realtek PCIe GBE Family Controller - Packet Scheduler Miniport Current Bandwidth: 100000000 Name: MS TCP Loopback interface Current Bandwidth: 10000000 Press any key to continue . . .

Similar to this you can enhance the properties of this Win32_ class