The relay device, a relay method and a relay program

Relay device for monitoring and control of the CPRI link is a link with interface Common Public Radio Interface is for connecting a plurality of relay devices included in the wireless base station (CPRI), the communication data and the relay information including control data to detect the CPRI link connection is broken by monitoring via CPRI link. Relay apparatus, distributing the respective CPRI link in accordance with the connection position of the CPRI links that link break is detected, forcibly control content such as wave-stopping stopping the transmission of the forced link disconnection or communication data for cutting the CPRI link was carried out for each CPRI link, it performs respective monitoring and control.