Microsoft KB Archive/247114

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Error Message Creating Managed Subnet

Article ID: 247114

Article Last Modified on 3/1/2007


  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Datacenter Server

This article was previously published under Q247114


When you try to create a managed subnet through the Quality of Service (QoS) Admission Control snap-in, you are prompted to enter the IP address of the subnet you want to add. If you do this incorrectly, you may receive the following ACS error message:

Invalid name: Subnet names must take the form WWW.XXX.YYY.ZZZ/MM, where MM is the number of unmasked bits at the front. The masked bits at the end must all be clear. Example:


This issue can occur if you incorrectly enter the IP address of the subnet.


To resolve this issue, follow the instructions you receive in the error message. Make sure that you use a forward slash (/) and not a backslash (\).

Keywords: kberrmsg kbnetwork kbprb KB247114