中文摘要：

南向协议接口标准I2RS（路由系统接口）是传统网络向SDN（软件定义网络）过渡过程中出现的一种新标准。基于该标准,提出了一种直接利用地址访问内核空间数据的方法,从而能够使南向接口以更高效率获取单点路由设备状态和各类统计信息的方法,给出了方法的实现过程,并对采用本方法提取数据的速度、访问数据出错次数以及从异常中恢复的时间进行了大量、长时间的测试。实验测试结果表明,与现有技术相比,本方法提取信息的速率明显提高,并且在提取信息出现异常时能够快速从异常中恢复。在实际网络环境中的应用表明,该方法发挥了快速可靠提取信息的作用。

英文摘要：

Southbound interface protocol specification I2RS（interface to routing system） appears in the transitional period of traditional network to SDN（software defined networking）. Based on the protocol specification, a method which could get the state and statistics information of network ＇s equipments in a more efficient way was put forward.The design was detailed and adequately testing was performed, which included the speed of getting information about equipments＇ state and statistics, the numbers of the wrong information as well as the recovery time from exception. The experiment results show that the proposed method improves the speed of getting the information about equipments＇ state and statistics, which is better than the existed method and when some exceptions happen, the proposed method can recover the situation quickly. The application of the real network environment shows that the proposed method can get the wanted information quickly and stably.