Network management method and device

The embodiment of the invention provides a network management method and device, and the method comprises the steps: obtaining a first port state of a first input port of a first switching chip and a second port state of a first output port, and the port states comprise at least one of a connection state and a disconnection state; when the first port state and/or the second port state are/is a disconnected state, it is determined that a link fault exists in a target link corresponding to a second input port of the second switching chip, reset operation is carried out on the first switching chip for the target number of times, and the first input port of the first switching chip is connected with a second output port of the second switching chip; and after the reset operation of the target number of times is executed on the first switch chip and when the target link still has a link fault, reset operation is performed on a third switch chip connected with the first switch chip. According to the application, th