Traffic Engineering with Segment Routing and sFlow
Introduction Segment Routing (SR) solves a number of issues the existing MPLS IP networks face. Among the many benefits of Segment Routing, Traffic Engineering is a key one. Based on live telemetry events, traffic can be steered intelligently across a network using MPLS label paths a.k.a segment lists. The example discussed in this article shows how you can leverage BGP SR policy to alter traffic paths based on sFlow telemetry data. An SR Policy, discussed in detail here, is identified using a 2-tuple of Endpoint and color. Endpoint here refers to a destination prefix while color is a 32-bit BGP extended...
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