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:
Oct. 27, 2009
Filed:
Sep. 07, 2005
Cheng-hong HU, San Ramon, CA (US);
Cheng-Hong Hu, San Ramon, CA (US);
AT&T Intellectual Property I, L.P., Reno, NV (US);
Abstract
A system and method are disclosed for fault-tolerance in an inter-carrier network interface. A system that incorporates teachings of the present disclosure may include, for example, a PE-ASBR (Provider Edge-Autonomous System Boundary Router) () having a communications interface () for internetworking with another MPLS-VPN (Multi-protocol Label Switching-Virtual Private Network) cluster (), and a controller (). The controller can be programmed to exchange () routing information with a PE-ASBR within its own MPLS-VPN cluster and with a corresponding PE-ASBR of another MPLS-VPN cluster, and accept () a reroute of packet traffic away from a PE-ASBR of its MPLS-VPN cluster experiencing a fault.