Control plane redundancy for optical networks
US11101883B1 · kind B1 · utility
1Cited by
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20Claims
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Key dates
| Filing date | Mar 30, 2020 |
| Grant date | Aug 24, 2021 |
| Priority date | — |
| Expiry date | Mar 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0043
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In an optical communications network, the supervisory control signal is duplicating at the OSI layer 2 or layer 3 level to generate a primary supervisory control signal and a secondary supervisory control signal. Access to the primary supervisory control signal is enabled at a network interface of a network device. In response to detecting a failure of the optical communications network or the device, access to the primary supervisory control signal is disabled and access to the secondary supervisory control signal is enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.