A transmission information transfer apparatus for realizing the MAC VLAN function with low latency includes: a VLAN table memory that manages a VID and a VLAN membership; a VLAN cache which is a cache memory that manages a VLAN Cache Index and VLAN membership in association with one another; an FDB that manages the VID, DA, and output port information in association with one another and further manages the VID, SA, and VLAN Cache Index in association with one another; an extraction section that extracts the VID, DA, and SA included in an input packet; an FDB search section that acquires output port information associated with the VID and DA, as well as the VLAN Cache Index associated with the VID and SA; a table controller that acquires the VLAN membership associated with the VLAN Cache Index; and an output port determination section that determines an output port of a packet.