METHOD AND SYSTEM FOR IMPLEMENTING DYNAMIC BANDWIDTH ALLOCATION MECHANISM APPLYING TREE ALGORITHM IN ETHERNET PASSIVE OPTICAL NETWORK

摘要

in accordance with the present invention OLT (Optical Line Terminal) and , connected to the OLT and a plurality of ONU (Optical Network Unit) and configured to include an Ethernet passive optical network (Ethernet Passive Optical Network: E-PON) of the dynamic bandwidth allocation method , each one of the root node and a plurality of branch node having dynamic bandwidth allocation control node (Dynamic Bandwidth Allocation Control Node: DBACN) to be formed, the tree consists of a tree structure ; The aggregate bandwidth request information from the branch node , start outputting the aggregated bandwidth request information to the root node from the lowest request DBACN and collected sequentially by the process of performing ; Branches starting from the uppermost step of distributing the allocated band to DBACN nodes to include a bandwidth allocation process performed in sequence .