| 摘要 |
<p>A method for implementing a bidirectional protection switching in a Multiple Protocol Label Switching (MPLS) network, mainly includes: configuring bidirectional protection switching strategy for two bidirectional Label Switching Path (LSP) each of which includes two LSPs in opposite directions according to an Automatic Protection Switching (APS) protocol; and implementing the bidirectional protection switching according to the bidirectional protection switching strategy pre-configured when the bidirectional protection switching is decided to be needed according to the APS protocol in the MPLS network. This invention effectively protects a bidirectional MPLS LSP and ensures equal delay of data traffic in the two directions. Besides, the APS protocol introduced in this invention can also include a unidirectional MPLS LSP protection and thus provides an uniform mechanism for both unidirectional and bidirectional protection in the MPLS network.</p> |
