An information processing method, a node, and a computer-readable storage medium are disclosed. The information processing method is applied to a first device sharing a dual-homing relationship with a second device. The first device is provided with a first sub-interface, while the second device is provided with a second sub-interface corresponding to the first sub-interface. The method may include in response to determining that the second sub-interface is in a failed state and a main interface to which the second sub-interface belongs is in a normal state, advertising first routing information corresponding to the first sub-interface in a network, such that a third device is configured to send a data message to the first sub-interface according to the first routing information.