Identity label network flow scheduling method and device based on programmable switch

The invention discloses an identity label network flow scheduling method and device based on a programmable switch, and the method comprises the steps: a mobile access point maintains a connection state data table within the range of the mobile access point, sends a heartbeat message to a mobile terminal at regular intervals, and sends a heartbeat message to the mobile terminal if a response message is not received; if yes, table items on the connection state data table are deleted; the controller maintains a whole network view, monitors network traffic, and issues a flow table item to the programmable switch; the source mobile terminal sends an ASSOCIATION data packet to the mobile access point to obtain the position identifier of the target mobile terminal, and then sends a formal request data packet; the formal request data packet comprises a source position identifier, a source identity identifier, a destination position identifier and a destination identity identifier, and the load is a data message; the