US 12,261,772 B2
Variable preemption for LSP tunnels
Darek Skalecki, Ottawa (CA); Gerald Smallegange, Stittsville (CA); and Himanshu Shah, Hopkinton, MA (US)
Assigned to Ciena Corporation, Hanover, MD (US)
Filed by Ciena Corporation, Hanover, MD (US)
Filed on Jun. 19, 2023, as Appl. No. 18/337,392.
Claims priority of provisional application 63/405,662, filed on Sep. 12, 2022.
Prior Publication US 2024/0089200 A1, Mar. 14, 2024
Int. Cl. G06F 13/00 (2006.01); H04L 45/28 (2022.01); H04L 45/50 (2022.01); H04L 47/80 (2022.01)
CPC H04L 45/50 (2013.01) [H04L 45/28 (2013.01); H04L 47/803 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A non-transitory computer-readable medium comprising instructions that, when executed, cause at least one processor to perform steps of:
provisioning a label-switched path (LSP) tunnel at a first bandwidth with a first priority value;
provisioning one or more different priority values for the LSP tunnel, wherein the one or more different priority values change a current priority value for the LSP tunnel based on one or more of (1) corresponding one or more bandwidths of the LSP tunnel such that the current priority value of the LSP tunnel is set based on a current bandwidth value of the LSP tunnel and (2) redial failure attempts such that the current priority value of the LSP tunnel is set based on a number of the redial failure attempts;
operating the LSP tunnel at the first priority on the first bandwidth, and
in response to auto-sizing the LSP tunnel based on monitored usage, changing the first priority value due to the auto-sizing, to a second priority value.