Method and apparatus for communications traffic engineering
US7230924B2 · kind B2 · utility
40Cited by
8References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2001 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Mar 23, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/122
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This invention provides for a technique for selectively off-loading traffic from congested sub-regions of a network to more lightly-loaded regions by making use of Multiprotocol Label Switching (MPLS). For each network element, an Interior Gateway Protocol (IGP) routing is employed to provide re-routing and to identify congested links caused by re-routed trunks for each single failure. The re-routed traffic is then analyzed and alternate Label Switched Paths (LSPs) are identified for such traffic trunks so that the traffic is directed to the alternate LSPs during the single failure event.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.