Protecting packet traffic in a network including an adaptive bandwidth link
US9113390B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2013 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Apr 5, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W40/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a packet switching device receives a notification that a link has a diminished packet transport capacity. In response, the packet switching devices changes forwarding information for a portion of the packet traffic being sent over the diminished packet transport capacity link to traverse one or more reroute paths not including the diminished link, while some packet traffic continues to use the diminished packet transport capacity link. This notification can be received directly from a communications device, or via a routing protocol such as for a remote link that sent packet traffic may traverse. These rerouted paths may be precomputed and installed in forwarding data structures for fast rerouting, or computed and installed in response to receiving the notification. In one embodiment, quality of service (QoS) is adjusted in response to receiving the notification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.