An entry in this table provides a way to configure a 'Generic Label' for LDP.

An entry in the 'mplsLdpEntityTable' will only have associated entries in this Table if Generic Labels are configured for a specific 'mplsLdpEntityEntry'. Thus, not every 'mplsLdpEntityEntry' will have associated entries in this table. The InterfaceIndex value for a Generic Label is from the 'ifLayer' where the label is created. Likewise, the ifType of the interface is the 'ifLayer' where the label is created. For example, if an implementation creates the generic label at the ifLayer which has the 'ifType' of 'mpls', then the 'mplsLdpConfGenericIfIndexOrZero' object should be set to the value of the InterfaceIndex for this 'ifLayer'.

If the value of 'mplsLdpConfGenericIfIndexOrZero' is zero then the InterfaceIndex value of this object is not known. If this Generic Label is used, i.e. a session has been established successfully and data is forwarded using this label, then the value of the 'mplsLdpConfGenericIfIndexOrZero' object MUST be updated by the network management entity (e.g. SNMP agent) to reflect the InterfaceIndex value for the 'ifLayer' that created the Generic Label.

To summarize, not all implementations may assign ifIndices at a label's creation time, thus, an ifIndex value may not be known, until a subsequent time. However, once that ifIndex value is known, the 'mplsLdpConfGenericIfIndexOrZero' object should be changed to reflect the ifIndex value.