| 摘要 |
A method and a device of service migration in an automatically switched optical network are disclosed in the present invention, and the method includes: when receiving a migration indication message, a migration node sending an cross information checking request to a transmission plane (S101); when receiving a cross information checking success message, the migration node performing a slot resource migration (S102); and the migration node determining whether it is the destination node of the present service migration, if it is determined to be yes, an cross connection migration is performed directly, otherwise, the cross connection migration is performed after the indication signaling, which is sent by a downstream node and carries a cross connection migration scene, is received (S103). The present invention improves the reliability of the migration from PC to SPC, and further ensures the reliability of the migration by a strict state control and state refresh mechanism.
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