| 摘要 |
A single-optical fibre fault handling method and device. When alarm information for triggering multiplex section protection group switching is detected, a non-decision node in an across-network element multiplex section protection group judges whether the state of a communication link between same and a decision node in the across-network element multiplex section protection group is normal, and if the communication link is abnormal, maps the alarm information to a transmitting optical fibre end as an opposite-end protection group. |
