OID value: 2.5.20.1
OID description:
An auxilary object class subentry used to administer
the subschema for the subschema administrative area. It
holds the operational attributes representing the policy
parameters used to express the subschema. (no really!)
subschema OBJECT-CLASS ::= { KIND auxilary MAY CONTAIN { dITStructureRule | nameForms | dITContentRules | objectClasses | attributeTypes | matchingRules | matchingRuleUse } ID id-soc-subschema }
See also the OID Repository website reference for 2.5.20.1