This OID gives the Relative Name (RN) of an IPv4 address drawn from an IP address pool and assigned to a vNIC — the naming component that distinguishes this particular IpV4PooledAddr instance from its sibling instances under the same parent object. Because RNs are combined with a parent DN to build the full path, an admin uses this value to understand how UCS Manager names and organizes multiple IpV4PooledAddr entries that exist under the same vNIC or service profile. For example, if two IpV4PooledAddr entries exist side by side, comparing their RNs is how an admin tells them apart when the parent DN alone is identical for both.