Method and system for improving the efficiency of bandwidth allocation

摘要

A method for improving the efficiency of allocation of bandwidth, comprising: a passive optical network, PON, detecting (201), by an optical network unit, ONU, each container transmission TCont, UN in real time, and send, by the UN, to an optical line terminal, OLT, a private message used to notify buffer overflow detection to buffer overflow occurs in a TCont; send (202), by the OLT, according to the private received message used to notify the buffer overflow, the UN a private message used to order the UN to activate a mechanism for allocating overflow; the method being characterized by further comprising: after receiving the private message used to order the UN to activate (203) the allocation mechanism overflow, activate, UN, the allocation mechanism overflow, calculate, UN a real traffic TCont a buffer, and send (204), by the UN, the actual traffic buffer TCont the OLT; and dynamically allocating, by the OLT, a bandwidth to TCont according to the actual traffic TCont buffer.