System and method for fault-tolerance in an inter-carrier...

Details System and method for fault-tolerance in an inter-carrier... System and method for fault-tolerance in an inter-carrier...

2005-09-07

2009-10-27

Yao, Kwang B (Department: 2416)

Multiplex communications

Data flow congestion prevention or control

Control of data admission to the network

C370S235000

Reexamination Certificate

active

07609628

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) (108, 138) having a communications interface (202) for internetworking with another MPLS-VPN (Multi-protocol Label Switching-Virtual Private Network) cluster (102, 132), and a controller (204). The controller can be programmed to exchange (302) 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 (334) a reroute of packet traffic away from a PE-ASBR of its MPLS-VPN cluster experiencing a fault.

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patent: WO 2004045133 (2004-05-01), None

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