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US 11,909,645 B2Granted
Segment routing traffic engineering based on link utilization
AssigneeCiena Corporation
InventorsDarek Skalecki, Gerard L. Swinkels
Life of this patent
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AssigneeCiena Corporation
InventorsDarek Skalecki, Gerard L. Swinkels
Estimating the term…
Systems and methods for Segment Routing (SR) Traffic Engineering (SR-TE) in a network include receiving link utilization measurements at a Label Edge Router (LER) with the link utilization measurements flooded by one or more Label Switch Routers (LSRs); and, responsive to one or more of detecting congestion and underutilization on one or more links associated with an SR tunnel at the LER based on the received link utilization measurements, performing one or more actions at the LER to one or more of alleviate the congestion and re-optimize the underutilization. A state of the SR tunnel is maintained only at the LER through a label stack assigned at the LER, and the label stack includes one or more of a node Segment ID (SID) and an adjacency SID.
A Label Edge Router (LER) in a Segment Routing (SR) network configured to perform SR Traffic Engineering (SR-TE), the LER comprising:
A non-transitory computer-readable storage medium having a computer-readable code stored thereon, the computer-readable code that when executed by a processor of a label edge router (LER), causes the LER to perform steps of:
A method, implemented in a Label Edge Router (LER) in a Segment Routing (SR) network, comprising:
Dependencies are inferred from the claim text.