Patent ID: 8832282

Claim:
A block boundary node in an optical network, the block boundary node comprising a connection controller, a link resource manager and a route controller, wherein the connection controller is implemented by a processor and configured to send a block information query request to the link resource manager after receiving a connection request message, query and verify block information of an ingress subnet point of a home terminal, query block information of an egress subnet point of an egress boundary node after the verification is passed, and to send a route query request to the route controller by using the block information of the ingress subnet point of the home terminal and the block information of the egress subnet point of the egress boundary node as query parameters, wherein the block information of the ingress subnet point refers to interchangeability between the ingress subnet point and other subnet points of the home terminal in a route domain; the link resource manager is implemented by the processor and configured to feed the block information of the ingress subnet point of the home terminal back to the connection controller in response to the block information query request of the connection controller; and the route controller is implemented by the processor and configured to provide route information for setting up a connection in response to the route query request.