| 摘要 |
<p>A method for establishing a switch connection in an Automatically Switched Optical Network (ASON) is provided, wherein the method includes that: a source User Network Interface-Network (UNI-N) of a service network receives a service establishment request message sent by a user network, and starts a service establishment of a service layer; said source UNI-N applies for a virtual interface of the service layer service; said source UNI-N queries a routing according to routing constraint conditions in said service establishment request message, and establishes the service layer service in said service network; said source UNI-N applies for an upstream slot label of a client layer service, and sets a cross to a corresponding downstream slot label of the service layer service from said upstream slot label of the client layer service; said destination UNI-N applies for a downstream slot label of the client layer service, and sets a cross to the corresponding downstream slot label of the client layer service from said upstream slot label of the service layer service; said destination User Network Interface-Customer (UNI-C) returns a client layer Reservation (Resv) signaling, and completes the establishment of the switch connection. The present invention ensures the relative independence of the operation between the client layer service and the service layer service.</p> |
