Large-scale sensor network routing method based on routing verification and route reply (RREP) capture

The invention relates to a large-scale sensor network routing method based on routing verification and route reply (RREP) capture. The routing method comprises the following two stages: (1) a route establishing stage: establishing a route arriving at a destination node through broadcasting and transferring route request (RREQ) packet, lower the network load and reducing the route establishment times by an introduced RREP capture mechanism; (2) a route maintaining stage: maintaining connection between the node and ambient adjacent nodes, obtaining a notice in time when an adjacent node can not arrive and verifying the smoothness of the route by a route verifying mechanism; and maintaining the route according to the feedback information of a link layer by a link layer feedback mechanism. The invention reduces the frequency of the route establishment to a great extent by the route verifying mechanism and the RREP capture mechanism, thereby reducing the control packet number in a network; because the route mainte