Communications network
US8433194B2 · kind B2 · utility
11Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2008 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Jun 23, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0081
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A PON in which parallel optical fiber paths are provided between dual OLTs and the ONTs, one of the optical fiber paths providing an active connection and the other optical fiber path providing a standby connection. Respective VLANs may be formed over the parallel optical fiber paths. If performance indicators, for example Ethernet continuity check messages, indicate that an ONT is no longer in communication with the OLT then data may be sent via the VLAN associated with the standby connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.