| 摘要 |
<p>In the field of communications technologies, a method, an apparatus, and a system for updating ring network topology information are provided. The method includes: receiving a topology discovery packet sent from an originating node, where the topology discovery packet at least carries identifiers of each node traversed by the topology discovery packet when the packet is transferred from the originating node to a current node; and updating ring network topology information of the current node according to the identifiers of each node carried in the topology discovery packet. The apparatus includes a receiving module and an updating module. The system includes an originating node and a receiving node. Compared with the prior art, ring network protection abnormity due to the change of the ring network topology structure when link failures occur is avoided.</p> |
