| 摘要 |
The present invention relates to a procedure for ensuring the activation of a V5 interface formed between a local exchange and an access node. According to the invention, the checking of the operational condition of the primary and secondary links is started simultaneously both on the local exchange side and on the access node side, and if a confirmation indicating that the link is operational is received for the secondary link first, then a switchover of the primary link to the secondary link according to the V5 definitions is performed and the new primary link is used for protection in the V5 interface during the V5 interface activation process. The invention makes it possible to avoid unnecessary interruptions of activation during the V5 interface activation procedure.
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