LDAP Search Scopes are "officially" defined in the Internet Assigned Numbers Authority (IANA) Considerations for the Lightweight Directory Access Protocol (LDAP) by RFC 4520.
LDAP Search Scopes are listed within an IANA Registry at: LDAP Search Scopes
And we outline them below:
Name | URLString | Value | Owner | Reference |
---|---|---|---|---|
baseObject | base | 0 | IESG | RFC 4516 RFC 4511 |
singleLevel | one | 1 | IESG | RFC 4516 RFC 4511 |
wholeSubtree | sub | 2 | IESG | RFC 4516 RFC 4511 |
subordinateSubtree | sub | 3 | Draft-sermersheim-ldap-subordinate-scope |