METHOD OF DISTRIBUTED SERVICE FUNCTION FAIL-OVER FOR HIGHLY AVAILABLE SERVICE FUNCTION CHAINING AND SYSTEM OF THE SAME

摘要

A fault recovery method is disclosed. Wherein the fault recovery method is performed by a fault recovery system, wherein a transmitter included in the fault recovery system transmits a ping message to a service node providing a next service function on a service function chain at regular intervals, The method includes the steps of: determining whether a determination unit included in the system receives a response to the ping message; and when the failure detection unit included in the failure recovery system determines that a response to the ping message is not returned within a predetermined threshold time And detecting a failure of the next service function.