METHOD FOR SWITCHING PAIRING IN MESH NETWORK SYSTEM

Disclosed is a method for switching pairing in a mesh network system, including: selecting, by a network node, a new parent node; generating and sending, by the network node, a pairing change request packet to the new parent node when the new parent node is not an access point; adding, by the new parent node, MAC addresses of the network node and its descendant nodes to a refugee table when determining that it can provide relay services; returning, by the new parent node, a first pairing approval packet to the network node when the new parent node is a root node; forwarding, by the new parent node, the pairing change request packet upstream when the new parent node is not the root node; wherein pairing switching is successful if the network node receives the first pairing approval packet.