# How Network Redundancy Can Actually Create Single Points of Failure

Page: https://stenobird.com/podcast/networking-tech-with-fexingo-internet-infrastructure-routing-and-network-engineering-7871928/how-network-redundancy-can-actually-create-single-points-of-failure
Text version: https://stenobird.com/podcast/networking-tech-with-fexingo-internet-infrastructure-routing-and-network-engineering-7871928/how-network-redundancy-can-actually-create-single-points-of-failure.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: 2026-07-13T22:50:32+00:00
Episode link: https://audio.fexingo.com/business/networking-tech/episode-0109.mp3
Audio file: https://audio.fexingo.com/business/networking-tech/episode-0109.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-network-redundancy-can-actually-create-single-points-of-failure
Duration seconds: 375

## Resource

Most network engineers assume that redundant paths mean resilience. But in this episode, Lucas and Luna dig into a counterintuitive truth: redundant links, devices, and power feeds often share hidden dependencies — a single software bug, a common firmware version, a shared backplane — that transform redundancy into a liability. Using the 2021 Facebook outage as a concrete case, they walk through how BGP route reflector redundancy failed, how dual-homed circuits shared the same physical conduit, and why 'everything is redundant' can be the most dangerous phrase in network engineering. They also discuss practical mitigations: diversity audits, chaos engineering for failover testing, and the underappreciated value of intentionally breaking redundancy in staging environments. This is a must-listen for anyone who designs, operates, or audits critical network infrastructure. #NetworkEngineering #Redundancy #SinglePointOfFailure #BGP #FacebookOutage #NetworkResilience #ChaosEngineering #FailoverTesting #RouteReflector #DiversityAudit #NetworkInfrastructure #Tech #Technology #Fexingo #FexingoBusiness #BusinessPodcast #InternetInfrastructure #NetworkDesign Keep every episode free: buymeacoffee.com/fexingo

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## Transcript

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