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

摘要

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.

主权项

1. A method for neighbor topology discovery and cooperative communication of a multi-interface terminal, comprising:
broadcasting, by the multi-interface terminal, a neighbor discovery request message to respective network via each interface after the multi-interface terminal joins a network, the neighbor discovery request message carrying a neighbor hop value; and monitoring, by the multi-interface terminal in the network, broadcast messages of other terminals in the network where each interface of the multi-interface terminal 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 multi-interface terminal is the last hop, then extracting related information in the neighbor discovery request message, and updating neighbor information and network topology information of the multi-interface terminal; and if not, then modifying the neighbor hop value and then forwarding the neighbor discovery request message via all the interfaces, extracting the related information in the neighbor discovery request message, and updating the neighbor information and the network topology information of the multi-interface terminal; when the multi-interface terminal in the network needs to request for a service, obtaining an available communication link to a target end according to the network topology information; when the number of the available communication links is more than one, determining a service distributary mode between various available communication links; and requesting, by the multi-interface terminal, for the service and transmitting the service in parallel through each interface corresponding to each available communication link according to the service distributary mode.