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:
Sep. 25, 2007
Filed:
Jul. 12, 2001
Applicants:
Hamid Ould-brahim, Kanata, CA;
Gregory V. Wright, Stittsville, CA;
Bryan Gleeson, Cupertino, CA (US);
Inventors:
Hamid Ould-Brahim, Kanata, CA;
Gregory V. Wright, Stittsville, CA;
Bryan Gleeson, Cupertino, CA (US);
Assignee:
Nortel Networks Limited, St. Laurent, Quebec, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/173 (2006.01); H04K 1/00 (2006.01); H04L 12/28 (2006.01); H04J 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A common BGP framework is provided to achieve VPN information discovery in network based VPNs using modifications to existing BGP-4 multiprotocol extension path attributes. The framework allow each VPN to implement different OSI layer-2 or layer-3 protocols, and to implement different OSI layer-2 or layer-3 protocols from those used by the backbone of the shared network. The extensions added to BGP-4 apply both to Virtual Router (VR) models of VPN systems and to non-VR models.