3.1.1.2.2.4.4 DN-Binary Comparison Rule
Values of String(DN-Binary) or String(OR-Name) are equal if the object_DN components name the same object and the binary_value or OR_address components are identical in length and in content.
Evaluation of an LDAP_MATCHING_RULE_TRANSITIVE_EVAL matching rule is performed as documented in section 3.1.1.3.4.4. Only the object_DN component is considered when evaluating a filter clause that uses this rule; binary_value or OR_address is ignored.