Multi-interface terminal, and neighbor topology discovery and cooperative communication method therefore

Abstract

The present document provides a neighbor topology discovery method for a multi-interface terminal, to improve the usage rate of multiple interfaces. The method includes the following steps: after joining a network, the multi-interface terminal broadcasts a neighbor discovery request message to respective networks via each interface, and the neighbor discovery request message carries a neighbor hop value; and the multi-interface terminal in the network monitors broadcast messages of other terminals in the network where each interface is located; when detecting the neighbor discovery request message, if the neighbor hop value carried in the detected neighbor discovery request message indicates that the present terminal is the last hop, related information in the neighbor discovery request message is extracted, and neighbor information and network topology information of the present terminal is updated; and if not, the neighbor hop value is modified and the neighbor discovery request message is forwarded via all interfaces.