无源光网络的安全机制设计与实现

A scheme and realization of security for PON

无源光网络(PON)的ONU端共享同一段光纤,大大地降低了PON的价格,这是PON的一大优点。但随之又带来了网络的不可靠性。如果能增强PON网络的安全性,那无疑将大大地提高PON网络的可实施性。本文详细分析了在PON网络中存在的安全问题的原因,并相应地给出了解决的方法。最后,还用仿真手段证明了该方法的可行性。

PON (Passive Optical Network) shares fiber at the ONUs. This can greatly decrease the cost of PON. But this also results in fragility of the network. If security of PONcan be assured, it can be more practical. This article analyzes in detail the reason of thefragility and offers some solutions. At the end of this article, the feasibility of the solu-tions is confirmed by simulation experiment.