Real-time consistency check method and correlative device for warm backup of SCTP protocol stack

The invention provides a real-time consistency check method and a correlative device for the warm backup of an SCTP protocol stack. Input data of each SCTP protocol stack processing in a main/standby entity are synchronized. A TSN-check information pair of a last payload data block of an SCTP protocol in a given couple is acquired from the main entity. A TSN-check information pair of a matched payload data block in the given couple is acquired from the standby entity, and the TSN-check information pair of the matched payload data block comprises a TSN which is same as the TSN-check information pair from the main entity. The TSN-check information pair is utilized to perform consistency check to determine whether the TSN-check information pair from the main entity and the TSN-check information pair of the matched payload data block have the same check information.