The BGP-4 Path Attribute Unknown Table contains the per network path (NLRI) data on the path attributes advertised with a route but not known to the local BGP implementation or not otherwise capable of being returned from this agent. The absence of row data for a given index value for bgpPathAttrUnknownType indicates a lack of such unknown attribute information for the indicated network path. This table reports received routes and path attributes after import policy has been applied. Only routes accepted by import policy are reported. It is equivalent to the bgpM2PathAttrUnknownTable.