FLOW DIRECTION CONTROL METHOD AND APPARATUS FOR HARDWARE SWITCH, TERMINAL DEVICE, AND STORAGE MEDIUM

Disclosed is a flow direction control method for a hardware switch, which is externally connected to a unidirectional external-ring circuit. The method comprises: inputting obtained data traffic information into a hardware external-ring circuit; receiving the data traffic information transmitted back by the external-ring circuit; and redirecting the received data traffic information to a corresponding port according to a No. 1 redirection table obtained in advance. In the method, an apparatus, a terminal device and a storage medium disclosed, the received data traffic information is mirrored to a flow-out end of the external-ring circuit, and the data traffic information reenters the hardware switch through a flow-in end of the external-ring circuit. Then, the data traffic information of the flow-in end of the external-ring circuit is simply redirected to a virtual port of the hardware switch, and accordingly, the data traffic information of the hardware switch is transmitted to the virtual port.