Based on the transmission equipment of the current optical transmission/access network

a Point-to-Multipoint（P2 MP）network management scheme based on Hub-spoken structure is proposed.Digital wrapper overhead GCC0 is used as carrier monitoring and managing information channel

which can achieve low-loss

miniaturized terminal device monitoring and managing up to 8 remote node devices.In-band protocol and simple command protocol are also proposed in this paper to effectively transmit information of multiple remote node devices for monitoring and management.The remote node device is developed based on STM32.The software development framework and in-band implementation flow are introduced in detail.The experimental results show that the central office equipment can monitor and manage the multiple remote devices at the same time.