Episode
How Network Redundancy Can Actually Create Single Points of Failure
- Published
- Jul 13, 2026
- Duration seconds
- 375
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Summary
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