Consistency between mpls traffic engineering forwarding and...

Details Consistency between mpls traffic engineering forwarding and... Consistency between mpls traffic engineering forwarding and...

H - Electricity

04

L

H04L 1/00 (2006.01)

Patent

CA 2569796

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.

L'invention concerne des systèmes et des procédés garantissant une cohérence entre les entités de transmission et de commande MPLS. L'entité de commande peut être informée des anomalies de l'entité de transmission et peut répondre de manière appropriée. Une application spécifique garantit la cohérence entre les entités de transmission et de commande des tunnels de réacheminement rapide utilisés pour protéger une voie LSP d'ingéniérie de trafic MPLS d'une défaillance de liaison et/ou de noeud. Lorsqu'une défaillance de transmission du tunnel de secours est détectée, l'entité de commande peut réagir, par exemple, par réacheminement du tunnel de secours, et/ou par envoi d'une notification à l'opérateur ou à la tête de ligne de la voie LSP d'ingéniérie de trafic protégée.

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