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.