This OID returns the Relative Name (RN) of an FC SAN border — the uplink boundary where a UCS fabric interconnect connects out into the external Fibre Channel SAN, given as a SnmpAdminString — the naming fragment that distinguishes this instance from its sibling FcSanBorder objects under the same parent in UCSM's object tree. Admins use the RN, combined with the parent's DN, to reconstruct exactly where this FcSanBorder instance sits in the hierarchy without needing the full DN string on its own. For example, if two FcSanBorder instances exist under the same parent object, their RNs are what differentiate row one from row two when UCSM lists both under that parent.