Patent ID: 8717877

Claim:
A method for completing smooth cutover, comprising: when a device for performing cutover operations maintains a first connection with a first cutover device via a first interface, establishing a second connection with a second cutover device via a second interface, and transferring services carried in connection resources between the device for performing cutover operations and the first cutover device, that is, first connection resources, to connection resources between the device for performing cutover operations and the second cutover device, that is, second connection resources; wherein, the services that need to be carried in the first connection resources are transferred in a plurality of times to the second connection resources, each transfer operation comprises: blocking part of the first connection resources, when the services occupying this part of resources are completed and a state of the resources changes to idle, disconnecting a physical connection corresponding to this part of resources from the first cutover device and connecting this part of resources to said second cutover device, and routing new services to be carried in this part of resources to the second cutover device; wherein, the blocking part of the first connection resources comprises: blocking new services from being allocated to the blocked resources, but not affecting the services established in the resources; and the state of the resources changing to idle comprises: a user actively releasing the services carried in the resources, a system allocating new resources to services carried in the resources, or vacancy rate of this resources reaching a user acceptance level.