| 摘要 |
A method of identifying domain-to-domain link based on ASON (Automatically Switched Optical Network), including: storing, by a node in ASON, a route control ID of an abstract node each high layer network; obtaining, by the node, the route control ID of the abstract node in each network layer stored in an opposite terminal node with an exchanging method; comparing, by the node, the route control ID of the abstract node in each network layer stored locally with the route control ID of the abstract node in a corresponding network layer stored in the opposite terminal node respectively, and determining whether the link between the node and the opposite terminal node is a domain-to-domain link according to the comparing result. With the invention, the control domain of each layer in a hierarchical ASON can identify the domain-to-domain link between the nodes in the present layer.
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