FAILURE RECOVERY METHOD AND DEVICE, CONTROLLER, AND SOFTWARE DEFINED NETWORK

摘要

The present invention discloses a failure recovery method and device, controller and software defined network (SDN). The method comprises: receiving network failure information transmitted by a repeater device, acquiring , according to the network failure information, failure recovery information corresponding to the network failure information and pre-stored in a controller, wherein the failure recovery information is configured to perform a recovery operation on a network failure corresponding to the network failure information, and transmitting the failure recovery information to each repeater device corresponding to the failure recovery information. The present invention addresses the problem in the related art in which an SDN takes a long time to recover from a failure, thereby the recovery time is saved and the recovery efficiency is improved.