| 摘要 |
PURPOSE: A method for flushing filtering database in an Ethernet ring network is provided to construct correct filtering database even though data frames is delayed more than protecting switching frame. CONSTITUTION: A method for flushing filtering database in an Ethernet ring network includes steps of: operating a timer for delaying flushing of the filtering database when a topology of the ring network is changed; flushing the filtering database when the timer is terminated(S310,S330); flushing the filtering database after receiving a protection switching frame that requests flushing of the filtering database(S350); and forwarding a data frame in a queue state at a node and then forwarding the protection switching frame to an adjacent node(S370). |
