| 摘要 |
A joint switching method for the aggregation node, an aggregation node, and a system are provided. By snooping on information transferred between an active Optical Line Terminal, OLT, and a Broadband Network Gateway, BNG, the aggregation node finds a fault in time according to the information snooped on, and when a fault occurs, the aggregation node starts a local protection solution, enables a corresponding backup port connected to a backup OLT corresponding to the active OLT, and disables an active port connected to the active OLT. Through the method, when the active OLT is switched to the backup OLT, the aggregation node performs joint switching, which ensures normal communication.
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