Win32_PerfRawData_Tcpip_NetworkInterface perl sample code

The foundations for Manageability in Windows is Windows Management Instrumentation (WMI; formerly WBEM) and WMI extensions for Windows Driver Model (WDM).

ActiveXperts Network Monitor provides the ability to build monitor check routines based on WMI. ActiveXperts has collected more than a hundred WMI samples. You can use these samples as a base for new check routines you can write yourself. The Win32_PerfRawData_Tcpip_NetworkInterface WMI class can be used in ActiveXperts Network Monitor to monitor your servers.

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Description

The Win32_PerfRawData_Tcpip_NetworkInterfaceraw data performance counter class represents raw data counters that measure the rates at which bytes and packets are sent and received over a TCP/IP network connection. It includes counters that monitor connection errors. This class is shown as the Network Interface object in System Monitor. The WMI source of its data is the high-performance Performance Counter Provider. The original data source is the Tcpip performance library. The corresponding formatted data class is Win32_PerfFormattedData_Tcpip_NetworkInterface. This class was added for Windows 2000.

Sample Code

use strict;
use Win32::OLE('in');

use constant wbemFlagReturnImmediately => 0x10;
use constant wbemFlagForwardOnly => 0x20;

my @computers = ("\localhost");
foreach my $computer (@computers) {
   print "\n";
   print "==========================================\n";
   print "Computer: $computer\n";
   print "==========================================\n";

   my $objWMIService = Win32::OLE->GetObject("winmgmts:\\\\$computer\\root\\CIMV2") or die "WMI connection failed.\n";
   my $colItems = $objWMIService->ExecQuery("SELECT * FROM Win32_PerfRawData_Tcpip_NetworkInterface", "WQL",
                  wbemFlagReturnImmediately | wbemFlagForwardOnly);

   foreach my $objItem (in $colItems) {
      print "BytesReceivedPersec: $objItem->{BytesReceivedPersec}\n";
      print "BytesSentPersec: $objItem->{BytesSentPersec}\n";
      print "BytesTotalPersec: $objItem->{BytesTotalPersec}\n";
      print "Caption: $objItem->{Caption}\n";
      print "CurrentBandwidth: $objItem->{CurrentBandwidth}\n";
      print "Description: $objItem->{Description}\n";
      print "Frequency_Object: $objItem->{Frequency_Object}\n";
      print "Frequency_PerfTime: $objItem->{Frequency_PerfTime}\n";
      print "Frequency_Sys100NS: $objItem->{Frequency_Sys100NS}\n";
      print "Name: $objItem->{Name}\n";
      print "OutputQueueLength: $objItem->{OutputQueueLength}\n";
      print "PacketsOutboundDiscarded: $objItem->{PacketsOutboundDiscarded}\n";
      print "PacketsOutboundErrors: $objItem->{PacketsOutboundErrors}\n";
      print "PacketsPersec: $objItem->{PacketsPersec}\n";
      print "PacketsReceivedDiscarded: $objItem->{PacketsReceivedDiscarded}\n";
      print "PacketsReceivedErrors: $objItem->{PacketsReceivedErrors}\n";
      print "PacketsReceivedNonUnicastPersec: $objItem->{PacketsReceivedNonUnicastPersec}\n";
      print "PacketsReceivedPersec: $objItem->{PacketsReceivedPersec}\n";
      print "PacketsReceivedUnicastPersec: $objItem->{PacketsReceivedUnicastPersec}\n";
      print "PacketsReceivedUnknown: $objItem->{PacketsReceivedUnknown}\n";
      print "PacketsSentNonUnicastPersec: $objItem->{PacketsSentNonUnicastPersec}\n";
      print "PacketsSentPersec: $objItem->{PacketsSentPersec}\n";
      print "PacketsSentUnicastPersec: $objItem->{PacketsSentUnicastPersec}\n";
      print "Timestamp_Object: $objItem->{Timestamp_Object}\n";
      print "Timestamp_PerfTime: $objItem->{Timestamp_PerfTime}\n";
      print "Timestamp_Sys100NS: $objItem->{Timestamp_Sys100NS}\n";
      print "\n";
   }
}