| 摘要 |
<p>According to an example, a MPLS ring protection switching method is applied to each node in an MPLS TP ring. In the method, an MPLS forwarding table entry configured for a working LSP and an MPLS forwarding table entry configured for a backup LSP of the working LSP are added into a first table, an MPLS forwarding table entry formed by cross connecting the working LSP and the backup LSP is added into a second table, a packet is received, the first table is searched when the node is in a normal forwarding state, and the packet is forwarded by using an MPLS forwarding table entry in the first table, the second table is searched when the node device is in a protection forwarding state, and the packet is forwarded by using an MPLS forwarding table entry in the second table.</p> |
