| 摘要 |
<p>A DBA method is disclosed, including acquiring an upstream data size and a dynamic bandwidth report (DBRU) of a current transmission container (TCONT), estimating a bandwidth estimation value of the current TCONT; performing a bandwidth allocation calculation according to the bandwidth estimation value of the current TCONT and service layer agreement (SLA) information configured in advance, obtaining a bandwidth allocation value of the current TCONT. A DBA device and a XG PON system are disclosed, which may, in consideration of the adaptive negative feedback compensation during the bandwidth allocation, allocate bandwidth accurately to different TCONTs in the case of different overhead, thus avoiding lower flow such as a link error or a statistic error and achieving bandwidth adaptive compensation, implementing accurate bandwidth allocation, therefore avoiding the packet loss caused by insufficient allocation of bandwidth and the waste caused by excessive allocation of bandwidth.</p> |
