Maintaining time-division multiplexing over pseudowire connections during network outages
US8498199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2009 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | May 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0632
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Various exemplary embodiments relate to a provider edge node and a related method. The provider edge node may include a receiver that receives at least one packet transmitted over a TDM pseudowire using a structure-agnostic transmission mechanism. The provider edge node may also include a physical interface configured to output frames to a corresponding customer edge (CE) device and a machine-readable storage medium that stores a TDM framing type corresponding to the physical interface. Finally, the provider edge node may include a circuit emulation engine that, during periods in which a network error has occurred, transmits a plurality of frames to the CE device over the physical interface. A TDM data payload of each frame may include an idle pattern, while a group of framing bits of the plurality of frames may define a framing pattern corresponding to the TDM framing type stored for the physical interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.