| 摘要 |
A ring network protection method for the optical transmission network relates to the digital information transmission and includes using the overhead byte APS/PCC in the ODUk to transmit the protection information of the APS, a switch page number field is added in the APS/PCC. This method further includes: setting, by a network element, matching relations of switch pages and sending its own switch page to other network elements through the switch page number field in the APS/PCC; obtaining (501), by one of the other network elements, related information of the switch page carried by the APS/PCC, and determining (501) whether its own switch page matches the switch page corresponding to the related information according to the matching relation of the switch pages, if yes, performing (502) the switch processing; otherwise, stopping (503) processing the APS/PCC and sending a stop protocol to other network elements through the switch page number field to stop processing the APS/PCC protocol.
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