With the wide range of applications such as broadband

VoIP

IPTV

large customer network and so on

the service security requirements of user perception level are getting higher and higher. Based on the active discovery network detection

we reduce the number of complaints

help the customer service staff to improve the success rate of one-time dispatch

integrate the integrated network diagnosis method

intelligent obstacle avoidance

reduce the location and time of failure. Based on the current situation of China Unicom’s access network

an effective active end to end device failure detection mode is explored based on the way of software system aided probe deployment

which enriches and improves operators’ fault detection and diagnosis methods.