| 摘要 |
<p>A method and device for providing subnet protection in a transport multi-protocol label switching (TMPLS) network are disclosed. The method includes configuring two subnet protection groups in different directions for each intermediate node device, that needs protection, between two terminal devices, determining an operation condition of an operation tunnel link in each of the subnet protection groups, when the operation tunnel link in both the subnet groups are normal, transmitting service data via the operation tunnel links in the two subnet groups, and when failure occurs in the operation tunnel link in the one of the subnet protection groups, switching the service data to the protection tunnel link in the same subnet protection group. Accordingly, bidirectional Label-Switched Path (LSP) protection of a node device tunnel and refined protection of the operation tunnel links are implemented.</p> |
