How Segment Routing Is Reshaping the Internet's Core

The internet's routing table is growing at an unsustainable rate, and network engineers are turning to segment routing to keep the core from buckling under its own complexity. In this episode, hosts Lucas and Luna dig into the specific problem: the default-free zone, where the internet's backbone routers hold over a million routes, and how segment routing's source-based path selection is shifting the intelligence away from the core. They walk through a real-world migration at a tier-one provider, explaining how segment routing reduces the state each router has to maintain and opens the door to traffic engineering that was previously impractical. They also unpack the role of SRv6, the IPv6-based flavor that's gaining momentum with hyperscalers, and the operational trade-offs that keep network engineers cautious. If you've ever wondered why the internet doesn't just collapse under its own weight, this episode gives you a concrete look at the protocol evolution that's keeping it resilient. Plus, a note on how listener support keeps this show independent and ad-free. #SegmentRouting #SRv6 #NetworkEngineering #InternetInfrastructure #RoutingProtocols #BGP #DefaultFreeZone #NetworkAutomation #TierOneProvider #TrafficEngineering #NetworkResilience #IPv6 #NetworkArchitecture #FexingoBusiness #BusinessPodcast #Technology #InternetCore #RoutingTable Keep every episode free: buymeacoffee.com/fexingo