Patent ID: 6347138
Filing Date: 2002-02-12
Classification: H04Q

Abstract:
Procedure for ensuring the activation of a V5 interface formed between a local exchange (LE) and an access node (AN) and comprising at least two links (L), in which interface the operational condition of the links reserved for protocols essential to the operation of the interface as well as the operational condition of the primary and secondary links reserved for protocols used to protect them is checked during the activation procedure, characterised in thatthe 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; the process waits for a confirmation that the primary and/or secondary links/link are/is operational; 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.