| 摘要 |
<p>A route switching method and a network node device. The method is: set the correspondence between each destination port number and the transmission port number, in which the value of each transmission port number is the number itself of the corresponding destination port; when any one of the destination port has abnormal service, the network node device modifies the value of the transmission port number corresponding to the port which has abnormal service into the port number of the backup port corresponding to the port which has abnormal service and saves it; after receiving the packet, the network node device transmits the packet according to the current saved correspondence. The network node device includes the central processing unit, the first route unit and the second route unit. The present invention reduces the time required to modify the route data, causing the network node device to perform the route switching quickly and causing the user service to be resumed rapidly.</p> |
