针对光通信网络信道切频繁,网络性能下降的不足,提出主动式隐马尔可夫模型的光通信网络信道切换方法。首先构建主动式隐马尔可夫模型,对宽带波分复用IP光通信网络信道的空闲时长进行预测;通过比较序列概率和备选信道的数据传输量,来实现光通信网络信道的最优切换。实验证明提出的方法能够有效地降低网络碰撞、减少信道切换次数、提高光通信网络有效时间的利用率。 Aiming at the shortages of frequent channel cutting and network performance degradation in optical communication network, an active optical channel switching method based on hidden Markov model is proposed. First, an active hidden Markov model is constructed to predict the idle time of broadband WDM IP optical communication network channel. By comparing the sequence probability and the data transmission volume of alternative channel, the optimal switching of optical communication network channel is achieved . Experimental results show that the proposed method can effectively reduce the network collision, reduce the number of channel switching and improve the utilization of the effective time of optical communication network.