Dynamic Bandwidth Allocation Method and Apparatus based on Class of Service over Ethernet Passive Optical Network

摘要

The present invention up / down transmission band to ensure using an Ethernet frame, and by using the uplink frame advance booking service rating bandwidth request quantity of the ONU, and approved by the (grant) are service-specific quality of service between the ONU and the OLT to a method for the dynamic allocation of bandwidth allocation device, and,; In the optical termination unit (OLT) and the bandwidth allocation device in the plurality of optical network units (ONU) and an optical distribution network, the Ethernet passive optical network (EPON) comprising the (ODN), has a multi-point control protocol, the optical termination equipment ( MPCP) allocator is provided, wherein the optical network unit has been provided self-multipoint control protocol (MPCP) required, the multi-point control protocol (MPCP) allocator, a medium access control (MAC) control message for looking up in the control layer ( When receiving the REPORT), queue status information is collected for rating the queue state counter and, all optical network units by the rating queue state counter for dividing the optical network unit, and acquiring the length information of my grades queue the optical network units If this by generating the optical network unit-specific, service-specific bands within the optical network unit for downlink band allocation control message (GATE) by the optical network units Shall include the allowed generator for transmission and the multi-point control protocol (MPCP) request, upon receiving the downlink band allocation control message from the allowed generator, and the graded buffer counter for counting the length of the graded buffer, the length information of the graded buffer generated, and a request generator for transmission by including in the uplink control message for reporting.