WMI : TCP-IP Network Interface 성능 모니터링 Vbscript

다음 코드는, 2초 간격으로 네트워크 인터페이스를 통해서 발생하는 트래픽을 모니터링 하는 코드이다.

Windows Server 2003 및 XP에 서만 체크가 가능하다.

strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")
set objRefresher = CreateObject("WbemScripting.SWbemRefresher")
Set colItems = objRefresher.AddEnum _
    (objWMIService, "Win32_PerfFormattedData_TCPIP_NetworkInterface").objectSet
objRefresher.Refresh

For i = 1 to 5
    For Each objItem in colItems
        Wscript.Echo "Bytes Received Per Second: " & _
        objItem.BytesReceivedPersec
        Wscript.Echo "Bytes Sent Per Second: " & objItem.BytesSentPersec
        Wscript.Echo "Bytes Total Per Second: " & objItem.BytesTotalPersec
        Wscript.Echo "Caption: " & objItem.Caption
        Wscript.Echo "Current Bandwidth: " & objItem.CurrentBandwidth
        Wscript.Echo "Description: " & objItem.Description
        Wscript.Echo "Name: " & objItem.Name
        Wscript.Echo "Output Queue Length: " & objItem.OutputQueueLength
        Wscript.Echo "Packets Outbound Discarded: " & _
            objItem.PacketsOutboundDiscarded
        Wscript.Echo "Packets Outbound Errors: " & _
            objItem.PacketsOutboundErrors
        Wscript.Echo "Packets Per Second: " & objItem.PacketsPersec
        Wscript.Echo "Packets Received Discarded: " & _
            objItem.PacketsReceivedDiscarded
        Wscript.Echo "Packets Received Errors: " & _
            objItem.PacketsReceivedErrors
        Wscript.Echo "Packets Received Non-Unicast Per Second: " & _
            objItem.PacketsReceivedNonUnicastPersec
        Wscript.Echo "Packets Received Per Second: " & _
            objItem.PacketsReceivedPersec
        Wscript.Echo "Packets Received Unicast Per Second: " & _
            objItem.PacketsReceivedUnicastPersec
        Wscript.Echo "Packets Received Unknown: " & _
            objItem.PacketsReceivedUnknown
        Wscript.Echo "Packets Sent Non-Unicast Per Second: " & _
            objItem.PacketsSentNonUnicastPersec
        Wscript.Echo "Packets Sent Per Second: " & objItem.PacketsSentPersec
        Wscript.Echo "Packets Sent Unicast Per Second: " & _
            objItem.PacketsSentUnicastPersec
        Wscript.Sleep 2000
        objRefresher.Refresh
    Next
Next

만약 Windows 2000 환경이라면, 
다음과 같이 성능카운터의 원시데이터를 이용해서 계산을 해줘야 한다.

NetworkCardName = "3Com EtherLink XL 10_100 PCI For Complete PC Management NIC [3C905C-TX]"
'카드 이름에서, ()문자열은 []로 변경해야하며, / 문자는 _ 로 변경해야 함.

Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")

Set colItems = objWMIService.ExecQuery("SELECT * FROM Win32_PerfRawData_Tcpip_NetworkInterface WHERE Name = '"& NetworkCardName &"'")

For Each objItem In colItems
      'WScript.Echo "BytesSentPersec: " & objItem.BytesSentPersec
 D1 = objItem.BytesSentPersec
Next

WScript.Sleep(1000)
Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")
Set colItems = objWMIService.ExecQuery("SELECT * FROM Win32_PerfRawData_Tcpip_NetworkInterface WHERE Name = '"& NetworkCardName &"'")
For Each objItem In colItems
      'WScript.Echo "BytesSentPersec: " & objItem.BytesSentPersec
 D2 = objItem.BytesSentPersec
Next

WScript.Echo "Total Bytes/s=" & D2-D1

출처 : http://www.wssplex.net/TipnTech.aspx?Seq=220