Fiber link detection method and apparatus
US12160308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2022 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Dec 9, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/0858
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A fiber link detection method is implemented by a first network device of an optical communications network. The fiber link detection method includes obtaining a forward delay value indicating a forward delay of transmitting a first Precision Time Protocol (PTP) packet by a second interface of a second network device to a first interface of the first network device over a fiber link. A reverse delay value indicating a reverse delay of transmitting a second PTP packet by the first interface to the second interface over the fiber link is obtained, and a determination is made, based on the forward delay value, the reverse delay value, and a first threshold, that the fiber link comprises a third network device, where the first network device and the second network device support a PTP, and where the third network device does not support the PTP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.