docsRphyRpdPhysEntityAssetID — CableLabs official current and historical MIBs
This object is a user-assigned asset tracking identifier (as specified by a network manager) for the physical entity and provides non-volatile storage of this information. On the first instantiation of a physical entity, the value of docsRphyRpdPhysEntityAssetID associated with that entity is set to the zero-length string. Not every physical component will have an asset tracking identifier or even need one. Physical entities for which the associated value of the docsRphyRpdPhysEntityIsFRU object is equal to 'false(2)' (e.g., the repeater ports within a repeater module) do not need their own unique asset tracking identifier. An agent does not have to provide write access for such entities and may instead return a zero-length string. If write access is implemented for an instance of docsRphyRpdPhysEntityAssetID and a value is written into the instance, the agent must retain the supplied value in the docsRphyRpdPhysEntityAssetID instance (associated with the same physical entity) for as long as that entity remains instantiated. This includes instantiations across all re-initializations/reboots of the network management system, including those resulting in a change of the physical entity's docsRphyRpdPhysEntityIndex value. If no asset tracking information is associated with the physical component, then this object will contain a zero-length string.