QoS-based routing for CE-based VPN
US8189481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2006 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Sep 24, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0272
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
CE devices of the present invention are enabled to make more judicious routing decisions in CE-based VPNs. In determining a next-hop in a path from a source CE to a destination subnet, CE-to-CE costs are associated with each next-hop CE in a plurality of next-hop CEs. Each CE-to-CE cost is a cost of a path from the source CE to the associated next-hop CE. CE-to-subnet costs are associated with each of the next-hop CEs. Each CE-to-subnet cost is a cost of a path from the associated next-hop CE to the destination subnet. Total-costs are associated with each of the next-hop CEs. Each total-cost is a sum of a CE-to-CE cost associated with a next-hop CE and a CE-to-subnet cost associated with the same next-hop CE. The next-hop in the path is set to be a next-hop CE associated with an associated total-cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.