Peer-model support for virtual private networks having potentially overlapping addresses
US7668166B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2004 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Sep 4, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0272
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for operating a router has the following steps. First, the router receives a data packet to be forwarded, the data packet having an indication that it is to be routed by tag switching to a destination router, the destination router to forward the packet to a destination computer. Second, the router prepends a tag to the data packet, the tag to be used by the destination router to route the data packet to the destination computer. Third, the router prepends an encapsulation header to the data packet, the encapsulation header to route the data packet to the destination router. Fourth, the router transmits the data packet with the encapsulation header and the tag for routing through the network to the destination router.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.