Specifies the LDAP search referral option.
For help in understanding the attribute definition template, see Reading NDS Attribute Type Definitions.
An LDAP Group object can be configured to handle referrals in the following ways:
Always traverse the NDS tree (default option). This causes the request to use the referrals to search out information on other NDS servers.
Always refer. This causes the request to return referrals and allows the caller to determine whether or not to traverse the NDS tree for the information.
Refer if possible. This allows referrals to NDS 8 servers to be returned. This option is used in trees which contain a mix of NDS 8 and previous versions of NDS. Previous versions of the LDAP server do not register in the referral list, and therefore cannot be returned.