Methods, systems, and computer program products for voice over IP (VoIP) traffic engineering and path resilience using media gateway and associated next-hop routers
US7940660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2004 |
| Grant date | May 10, 2011 |
| Priority date | — |
| Expiry date | Dec 16, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1043
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Method, systems, and computer program products for voice over IP (VoIP) traffic engineering and path resilience using media gateway and associated next-hop routers are provided. In one example, a media gateway includes multiple media processing hosts and a multiple network interfaces separate from the media processing hosts. At least one of the media processing hosts is reachable via at least two of the network interfaces. Next-hop routers associated with the network interfaces advertise reachability information regarding the media processing hosts to routers in the network. The next-hop routers also participate in network routing protocols to form multiple paths between the media gateway and a remote media gateway. Costs may be assigned to associations between the media processing hosts and the next-hop routers for traffic engineering purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.