Procedure for ensuring the operation of signalling channels in a V5 interface

Abstract

The present invention relates to a procedure for ensuring the operation of signalling channels in a V5 interface between a local exchange (LE) and an access node (AN). The interface includes at least two links (L), in conjunction with redefinition of the interface composition. Redefinition generally involves making changes in the V5 interface data, such as the location of signalling channels on the links. According to the invention, the operation of protected channels in conjunction with restarting is ensured by starting the protected channels on the channels defined for them in the new composition and on the channels to which they were transferred in conjunction with the protection switch-over.

1. A method for ensuring the operation of signaling channels in a V5 interface between a local exchange and an access node, the interface comprising:
 reconfiguring V5 interface data in an interface composition having at least two signaling channels; and  
 ensuring active operation of protected signaling channels when starting a V5 interface, wherein the protected signaling channels are started on at least one of signaling channels defined in a new interface composition, and on signaling channels to which the protected signaling channels were transferred in a protection switch-over.  
 
     
     
       2. The method as defined in  claim 1 , wherein the reconfiguring V5 interface data in the interface composition is carried out independently both in a local exchange and in an access node without changing a value of an interface composition parameter. 
     
     
       3. The method as defined in  claim 1 , wherein the protected signaling channels transferred to a backup channel in a protection switch-over, remain at locations to which they were transferred in the protection switch-over, regardless of the reconfigured composition of the V5 interface. 
     
     
       4. The method as defined in  claim 1 , wherein composition changes in the reconfiguration of the composition of the V5 interface are made in an original composition regardless of protection switch-over operations carried out in the V5 interface. 
     
     
       5. The method as defined in  claim 1 , wherein an interface composition parameter is a provision variant parameter of the V5 interface, wherein the provision variant parameter includes the reconfigured V5 interface data.