This table contains information about the relationships between the multiple layers of interface objects ({{bibref|TR-181i2|Section 4.3}}). In particular, it contains information on which interfaces run ''on top of'' which other interfaces. This table is auto-generated by the CPE based on the ''LowerLayers'' parameters on individual interface objects. Each table row represents a "link" between two interface objects, a higher-layer interface object (referenced by {{param|HigherLayer}}) and a lower-layer interface object (referenced by {{param|LowerLayer}}). Consequently, if a referenced interface object is deleted, the CPE MUST delete the corresponding {{object}} row(s) that had referenced it. {{noreference}}A reference to the interface object corresponding to the higher layer of the relationship, i.e. the interface which runs on ''top'' of the interface identified by the corresponding instance of {{param|LowerLayer}}. When the referenced higher layer interface is deleted, the CPE MUST delete the table row. {{noreference}}A reference to the interface object corresponding to the lower layer of the relationship, i.e. the interface which runs ''below'' the interface identified by the corresponding instance of {{param|HigherLayer}}. When the referenced lower layer interface is deleted, the CPE MUST delete the table row. The value of the ''Alias'' parameter for the interface object referenced by {{param|HigherLayer}}. The value of the ''Alias'' parameter for the interface object referenced by {{param|LowerLayer}}.