Patent ID: 11909645
Assignee: CIENA CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A method, implemented in a Label Edge Router (LER) in a Segment Routing (SR) network, comprising:
receiving link utilization measurements flooded by one or more Label Switch Routers (LSRs)
wherein the link utilization measurements are for links associated with one or more SR tunnels; determining whether the one or more SR tunnels are congested, based on one or more of an unreserved bandwidth, a maximum reservable bandwidth, and a maximum bandwidth of corresponding links, where a given SR tunnel is determined to be congested based on one or more of (1) a negative value of the unreserved bandwidth, (2) the maximum reservable bandwidth being greater than the maximum bandwidth, and (3) the maximum reservable bandwidth being equal to the maximum bandwidth; and
causing performance of one or more routing actions for the one or more SR tunnels based on the determination.