DIT Structure Rules

["Kevin Hicks" <Kevin.Hicks@drintuit.dr.avaya.com>]

I have succussfully added custom attributes and objects using my own *.schema file.  Here's a portion of my *.schema file:

objectclass ( 1.3.12.2.1001.1.0.3.999.2.15 NAME 'audixNetwork' SUP top STRUCTURAL
        MAY ( netid $ Status $ NetName $ NetPassword $ UpdCin $
        UpdCout $ DpgTelNo $ NumExtDig $ NetMultiMedia $ NumRng $
        MacType $ DefCmty $ NetType $ NetTcpPort $ SendToNonAdmin $
        AmisIndex $ NetTurn $ NetClog $ ModemInit $ Permissions $
        KeepAlive $ Service $ NetIpAddress $ NetUtf8 $ Netnodeid ) )
 
objectclass ( 1.3.12.2.1001.1.0.3.999.2.16 NAME 'netSched' SUP top STRUCTURAL
        MAY ( sched $ XmitStart $ XmitEnd $ XmitPeriod ) )

I want to require that the netSched node always be a leaf node off of a audixNetwork node.  It seems like I need a DIT structure rule, but I couldn't find an example of how to define one for openldap.  I assume it goes in the *.schema file too.  How do I define a DIT structure rule??

Thanks in advance,

Kevin Hicks