Methods and apparatus to dynamically control connectivity within virtual private networks
US8121118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Feb 25, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/611
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus to dynamically control connectivity within VPNs are disclosed. A disclosed example route server to control connectivity within a VPN comprises a memory to implement a database, a border gateway protocol (BGP) engine to process BGP advertisements, a network interface to receive a first BGP advertisement, which a first route target (RT) associated with the first PE router, from a first provider edge (PE) router associated with the VPN, and an intra-VPN connectivity controller to, in response to the first BGP advertisement, query the database to determine whether the first PE router is to be communicatively coupled to a second PE router of the VPN and when the first and second PE routers of the VPN are to be communicatively coupled, direct the BGP engine to form a second BGP advertisement that includes a second RT associated with the second PE router based on the first BGP advertisement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.