Method for traffic engineering of connectionless virtual private network services
US7961652B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 2009 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Dec 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L12/4641
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for traffic engineering of connectionless virtual private network (VPN) services that includes receiving physical connectivity data for a connectionless VPN. The data includes service nodes and links between the service nodes. One or more of the service nodes are also edge nodes. Logical connectivity data for the edge nodes is received. A restricted topology is created in response to the physical connectivity data and to the logical connectivity data. The restricted topology includes a single path between each pair of the edge nodes and each path includes a plurality of the service nodes and one or more of the links. A bandwidth requirement for each link in the restricted topology is calculated. The bandwidth requirement is reserved on each link in the restricted topology. The method further comprises directing routing software to force a packet received from an edge node through one of the paths in the restricted topology.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.