IP data backup transmission method independent of routing protocol or algorithm

The invention discloses an IP data backup transmission method independent of a routing protocol or algorithm. A wireless channel (an ad-hoc wireless ad hoc network, a wifi network, etc.) is used as abackup transmission channel, and a layer two switching function of a three-layer switching network chip is used to achieve the purpose of reliable transmission assisted with a wired channel to transmit the IP data. Through the IP data backup transmission method independent of the routing protocol or algorithm, an IP three-layer switching network can be deployed within a reaching range of one hop of the wireless channel, so that the backup transmission can be carried out on the IP data through the wireless channel, and the purpose of reliable transmission is achieved; and when a wired channel route changes, the IP data transmission of the wireless channel is not affected; therefore, it can be ensured that the reachability of the IP data can be independent of the path specified by the routing protocol. The wired cha