US 12,316,530 B2
Backup path determination for optical networks
Navdeep Sood, Karnataka (IN); and Praveen Kumar, Karnataka (IN)
Assigned to Cisco Technology, Inc., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on May 31, 2024, as Appl. No. 18/680,155.
Application 18/680,155 is a continuation of application No. 18/219,990, filed on Jul. 10, 2023, granted, now 12,028,241.
Prior Publication US 2025/0023814 A1, Jan. 16, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 45/00 (2022.01); H04L 45/28 (2022.01)
CPC H04L 45/22 (2013.01) [H04L 45/28 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining a first contention metric associated with a first communication path between first nodes of a network, wherein the first contention metric is based on a first number of first circuits designating the first communication path as part of first backup paths for use in response to failure of first active paths used by the first circuits;
determining a second contention metric associated with a second communication path between second nodes of the network, wherein the second contention metric is based on a second number of second circuits designating the second communication path as part of second backup paths for use in response to failure of second active paths used by the second circuits;
determining, based at least in part on the first contention metric and the second contention metric, to reduce the first number of first circuits; and
reducing the first number of first circuits by modifying at least one of the first backup paths, resulting in a modified backup path that avoids the first communication path.