This OID returns the Relative Name (RN) of the FC zoning name-server namespace on a fabric interconnect, which hands out zone IDs to a VSAN, given as a SnmpAdminString — the naming fragment that distinguishes this instance from its sibling FabricZoneNs 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 FabricZoneNs instance sits in the hierarchy without needing the full DN string on its own. For example, if two FabricZoneNs instances exist under the same parent object, their RNs are what differentiate row one from row two when UCSM lists both under that parent.