A data distribution center associated with a broadband network system
wherein the first broadband network system further includes at least one
broadband interface unit (BIntU) transceiver comprising a receiver
portion and a transmitter portion. The receiver portion is configured to
receive user defined protocol with value-added (UDPVA) packet from the
BIntU transceiver. The transmitter portion is configured to transmit
return packets that is triggered in response to the UDPVA packets,
wherein the data distribution center indicates to the BIntU transceiver
that the UDPVA packets forwarded by the BIntU transceiver to the data
distribution center are being received by the data distribution center or
a second BIntU transceiver.