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:
Feb. 19, 2013
Filed:
Sep. 24, 2007
Jean-louis Le Roux, Lannion, FR;
Bruno Decraene, Vanves, FR;
Estelle Transy, Paris, FR;
France Telecom, Paris, FR;
Abstract
A system for securing the access to a destination of a virtual private network (VPNA) connected to a nominal access router (PE) includes at least one core router (P) adapted to: detect a failure affecting communication with the nominal access router (PE); and switch the traffic to a protector access router (PE) in a back-up tunnel bypassing the nominal access router (PE). The protector access router (PE) is adapted: to replace, in an MPLS packet, a nominal VPN label specific to the nominal access router (PE) by a back-up VPN label specific to a back-up access router (PE) connected to that destination; and to redirect said packet to the back-up access router (PE) in a tunnel bypassing the nominal access router (PE).