Method of identifying domain-to-domain link based on automatically switched optical network
US8589588B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | May 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0088
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.