Patent ID: 8780697

Claim:
A system communicatively linked to a network comprising a plurality of link-coupled nodes at a non-terminal node located on a label switched path of a plurality of label switched paths in the network, the system comprising: a memory that stores instructions; a processor that executes the instructions to perform operations comprising: selecting an optimized backup path for rerouting traffic around a failure located downstream of the non-terminal node, wherein the failure is one of a plurality of possible failures on the plurality of label switched paths; reserving a backup bandwidth for each predetermined link of a plurality of predetermined links along the optimized backup path, wherein the backup bandwidth is determined by a value corresponding to a bandwidth associated with a particular failure of the plurality of possible failures; updating the value of the backup bandwidth; and adjusting a bandwidth associated with the optimized backup path to a previously stored value of a bandwidth associated with a link on the optimized backup path.