Device and System for Identifying User Position

The invention claims with realizes method for user position mark, wherein a VlanCI and VlanPI two labels jointing into a broadband access network user to the position mark, then in broadband access network the number of the user access, comprising solved in broadband access network the VLAN OF the insufficient problem, wherein a realizes the access to a user in a broadband access network. The invention, the transmitting message, the device in broadband access network is set in the VlanPI scheduling, and no need to care of the user a specific service, namely with The Connecting a management for plasma pipe, and without of the management of thin line, and BAS matched with the wideband access device with solve the user service and. , Moreover of the user intranet's private label information, wherein the fixture on the circumference of the full network, the device in broadband access network without deal with the information.