Technique for determining whether to reestablish fast rerouted primary tunnels based on backup tunnel path quality feedback
AssigneeCisco Technology, Inc.
InventorsJean-Philippe Vasseur, Alton Lo, Anna Charny
Life of this patent
Estimating the term…
Loading patent…
AssigneeCisco Technology, Inc.
InventorsJean-Philippe Vasseur, Alton Lo, Anna Charny
Estimating the term…
In one embodiment, a primary tunnel is established from a head-end node to a destination along a path including one or more protected network elements for which a fast reroute path is available to pass traffic around the one or more network elements in the event of their failure. A first path quality measures path quality prior to failure of the one or more protected network elements. A second path quality measures path quality subsequent to failure of the one or more protected network elements, while the fast reroute path is being used to pass traffic of the primary tunnel. A determination is made whether to reestablish the primary tunnel over a new path that does not include the one or more failed protected network elements, or to continue to utilize the path with the fast reroute path, in response to a difference between the first path quality and the second path quality.
A method for dynamic routing determinations based on path quality notifications, the method comprising:
An apparatus configured to dynamically route determinations based on path quality notifications, the apparatus comprising:
A non-transitory computer-readable device storing instructions which, when executed by a processor, cause the processor to perform operations comprising:
Dependencies are inferred from the claim text.