The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 27, 2012
Filed:
Oct. 22, 2009
Srikanth Natarajan, Fort Collins, CO (US);
Swamy Jagannadha Mandavilli, Bangalore, IN;
Lawrence M. Besaw, Windsor, CO (US);
Anuradha Venkataraman, Bangalore, IN;
Srikanth Natarajan, Fort Collins, CO (US);
Swamy Jagannadha Mandavilli, Bangalore, IN;
Lawrence M. Besaw, Windsor, CO (US);
Anuradha Venkataraman, Bangalore, IN;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Presented is a method and system for determining network topology of a Virtual Private Network (VPN) in a Wide Area Network (WAN). The method includes obtaining a list of CE (customer edge) routers in a network, obtaining a list of prefixes advertised by each CE router, iterating, for each prefix, the list of prefixes advertised by all CE routers, verifying, in case a potential hub CE router already exists, whether the second CE router and the potential hub CE router are same, marking, in case a potential hub CE router does not exist, the second CE router as the potential hub CE router, and marking, if there exists a potential hub CE router that advertises every other prefix in the network, the potential hub CE router as hub site and other CE routers as spoke sites.