This OID carries the Relative Name (RN) of a Limit object, a configured capacity limit (a port, VLAN, or ASIC resource ceiling) enforced on part of a Fabric Interconnect — the naming component that distinguishes this instance from its siblings under the same parent object. Because Limit instances are addressed by concatenating RNs down the management tree, an admin uses this value together with the parent DN to reconstruct exactly where this instance sits. For example, two Limit instances that share the same parent will report different cucsNetworkLimitRn strings, letting a script tell them apart even when their other property values look identical.