Connectivity verification testing and topology discovery
US10715410B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2018 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Oct 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/02
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for performing connectivity verification testing and topology discovery in a reconfigurable optical add/drop multiplexer (ROADM) are provided. The ROADM can include a ROADM block having a plurality of internal ports connected to a fiber shuffle via respective optical fibers. The ROADM block includes a test signal transmitter configured to inject an outgoing test signal having a unique signature into each internal port. The outgoing test signals are out-of-band of optical data signals traversing the ROADM. The ROADM block includes a test signal monitor configured to monitor for incoming test signals at each of the internal ports. The test signal monitor is configured to validate, based on a signature of an incoming test signal received at an internal port of the ROADM block, whether a valid connection exists between the internal port and an internal port of a second ROADM block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.