DOCUMENT:Q154535 10-AUG-2001 [winnt] TITLE :Multiple Instances of Network Interface in Performance Monitor PRODUCT :Microsoft Windows NT PROD/VER:3.5 3.51 4.0 OPER/SYS: KEYWORDS:kbnetwork ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0 - Microsoft Windows NT Server versions 3.5, 3.51, 4.0 ------------------------------------------------------------------------------- SUMMARY ======= When the TCP/IP protocol is installed on a Windows NT system, you have the option in Performance Monitor to select the "Network Interface" object with multiple instances listed in the "Instance" section. This article explains what these multiple instances are. MORE INFORMATION ================ The Network Interface object is specific to IP. The instances in the Network Interface counter refer to the loopback address (127.0.0.1), the network card (if any), the dial-out WAN wrapper for each device bound under RAS, and the dial-in WAN wrapper for each device bound under RAS. The instances will always list the loopback address 127.0.0.1 first and the remaining instances should match the binding order of the TCP/IP protocol. To view the binding order for TCP/IP, choose Control Panel Network and click the Bindings button. In the Show Bindings For list, select TCP/IP Protocol. NOTE: If RAS does not use IP for a device, it is not counted. For example: If you have IP running on a network card, an ISDN card (dial- in/dial-out), and one communications port (dial-out only), but you also have another communications port set to dial-in/dial-out but using only NetBEUI, you would have the following instances: Instance 1: Loopback adapter (127.0.0.1) Instance 2: Network card Instance 3: ISDN dial out Instance 4: ISDN dial in Instance 5: Modem dial out Additional query words: prodnt ====================================================================== Keywords : kbnetwork Technology : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT350search kbWinNT400search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS350 kbWinNTS351search kbWinNTS350search Version : 3.5 3.51 4.0 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.