| 摘要 |
Embodiments of the present invention disclose a method for creating a ring network label switched path, a device, and a communications system. A method for creating a ring network label switched path includes: receiving, by a first node, a first Path message used for creating a first label switched path from a second node; allocating a first label to the first label switched path; sending a first Resv message carrying the first label to the second node; and when the first node receives a second Path message used for creating a second label switched path from the second node and determines that a destination node of the second label switched path is the same as that of the first label switched path, and the first node, the second node, and the destination node are located in a same ring network, allocating, by the first node, the first label to the second label switched path; and sending a second Resv message carrying the first label to the second node. Solutions of the embodiments of the present invention helps reduce the number of created ring network label switched paths and maintenance complexity. |
