Fast and adaptive mesh access control method for Low-power and lossy network system

摘要

A low power high loss wireless mesh network system and a situation adaptive terminal access control method for context adaptive terminal access control are disclosed. According to an embodiment of the present invention, there is provided an LLN border router (LBR) arranged between a security server and an LLN endpoint in a low power high loss mesh network (LLN), said LLN endpoint sending an authentication and key exchange process An authentication completion time mating unit that mates an authentication completion time required to complete the authentication completion time; An authentication requcounting unit counting the number of authentication start requ dropped since the number of currently executed authentication sessions (NumCurrentSessions) received from the LLN endpoint is equal to a preset threshold value (MaxActiveSessions); An LLN border router including a NACK message manager for generating and transmitting a NACK message including information capable of calculating a wait time for an LLN endpoint that has been received recently but is currently being executed because the number of currently active authentication sessions is equal to a predetermined threshold value .