Patent ID: 7953015
Filing Date: 2011-05-31
Classification: H04L

Abstract:
1. A method for ensuring reliability in a network including a separate bearer control layer, the method comprising: distributing, based on service flow according to a preset proportionally distributing strategy, services of one coupled function entity to multiple home function entities of the coupled function entity, wherein the multiple home function entities have identical functional characteristics in the network; taking over, by a first home function entity operating normally, work of a second home function entity to be switched if determining to switch between the multiple home function entities; wherein when the coupled function entity is an entity of the bearer control layer and the multiple home function entities are bearer nodes, the first home function entity being a first bearer node among the bearer nodes and the second home function entity being a second bearer node among the bearer nodes, determining whether the second bearer node is connected with a bearer node in another management domain; if the second bearer node is connected with a bearer node in the another management domain, notifying, by the entity of the bearer control layer, a second entity of the bearer control layer of the another management domain that network topology resources have been changed and updating, by the entity of the bearer control layer, resource occupation of the entity of the bearer control layer according to topology resource occupation of a service connection affected by the second bearer node; and if the second bearer node is not connected with a bearer node in the another management domain, updating directly, by the entity of the bearer control layer, resource occupation of the entity of the bearer control layer according to the topology resource occupation of the service connection affected by the second bearer node.