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US 2010/0061724 A1Published application
Hierarchical Routing Query Method of Automatic Switched Optical Network
AssigneeZte Corporation
InventorDesheng Sun
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AssigneeZte Corporation
InventorDesheng Sun
Estimating the term…
A hierarchical route inquiry method in Automatic Switched Optical Network is applied to the networks having multi-layer route domains. According to the method, after the route controller RC in one child domain receives the Route Request, if it can not calculate the complete route, it sends the Route Request to the RC in the parent domain; if the RC in the parent domain can not obtain the complete route, it further interacts with other child domains to obtain the complete route and returns the Route Response back to the requester. The present invention solves the problem of creating a cross-domain connection in route inquiry in the Automatic Switched Optical Network.
A hierarchical route inquiry method in Automatic Switched Optical Network (ASON) used in a network comprising multi-layer route domains, wherein when a Route Controller (RC) of a child domain receives a Route Request, the RC of the child domain sends the Route Request to a RC of a parent domain if a complete route can not be calculated, and the RC of the parent domain further interacts with other child domains if the RC of the parent domain can not calculate the complete route, if the complete route is obtained, and then the Route Response is returned to a requester.
Dependencies are inferred from the claim text.