Consistency between MPLS forwarding and control planes

Details Consistency between MPLS forwarding and control planes Consistency between MPLS forwarding and control planes

2004-06-18

2010-06-29

Rao, Seema S (Department: 2462)

Multiplex communications

Diagnostic testing

Fault detection

C370S248000, C370S395500

Reexamination Certificate

active

07746793

ABSTRACT:
Systems and methods for assuring consistency between MPLS forwarding and control planes. The control plane can be made aware of forwarding plane anomalies and can respond appropriately. One particular application is assuring consistency between forwarding and control planes of a Fast Reroute backup tunnels used to protect an MPLS Traffic Engineering LSP from a link and/or a node failure. When a backup tunnel forwarding failure is detected, the control plane can react by, for example, rerouting the backup tunnel and/or sending a notification to the operator or head-end of the protected Traffic Engineering LSP.

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