# How Segment Routing Is Transforming ISP Traffic Engineering

Page: https://stenobird.com/podcast/networking-tech-with-fexingo-internet-infrastructure-routing-and-network-engineering-7871928/how-segment-routing-is-transforming-isp-traffic-engineering
Text version: https://stenobird.com/podcast/networking-tech-with-fexingo-internet-infrastructure-routing-and-network-engineering-7871928/how-segment-routing-is-transforming-isp-traffic-engineering.md
Podcast: [Networking Tech with Fexingo: Internet Infrastructure, Routing, and Network Engineering](https://stenobird.com/podcast/networking-tech-with-fexingo-internet-infrastructure-routing-and-network-engineering-7871928)
Published: 2026-07-12T22:47:46+00:00
Episode link: https://audio.fexingo.com/business/networking-tech/episode-0107.mp3
Audio file: https://audio.fexingo.com/business/networking-tech/episode-0107.mp3
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JSON: https://stenobird.com/v1/public/podcasts/networking-tech-with-fexingo-internet-infrastructure-routing-and-network-engineering-7871928/episodes/how-segment-routing-is-transforming-isp-traffic-engineering
Duration seconds: 619

## Resource

In this episode of Networking Tech with Fexingo, hosts Lucas and Luna dive into Segment Routing (SR-MPLS) – a modern approach to traffic engineering that gives ISPs precise control over how packets traverse their backbone. Lucas explains how SR replaces the complex per-flow state of RSVP-TE with simple segment lists encoded in the packet header, reducing network complexity and enabling faster convergence. He references a case where a major European ISP cut backbone latency by 18% after deploying SR, and Luna asks about the operational trade-offs: control-plane simplification versus the loss of per-flow visibility. The conversation also touches on SRv6 and why the industry isn't rushing to adopt it. If today's deep-dive on network routing was valuable, listeners can support the ad-free show at buy me a coffee dot com slash fexingo. #SegmentRouting #SRMPLS #TrafficEngineering #ISPNetworks #NetworkRouting #RSVPTE #NetworkAutomation #SRv6 #IPRouting #MPLS #BackboneEngineering #NetworkProtocols #InternetInfrastructure #Technology #FexingoBusiness #BusinessPodcast #NetworkEngineering #NetworkingTech Keep every episode free: buymeacoffee.com/fexingo

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