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Networking Tech with Fexingo: Internet Infrastructure, Routing, and Network Engineering

Networking Tech with Fexingo: Internet Infrastructure, Routing, and Network Engineering

By: Fexingo
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Lucas and Luna break down the invisible skeleton of the internet: the routers, protocols, and physical cables that move packets across continents. Each episode opens with a recent network outage, a peering dispute, or a routing-table anomaly — then traces the engineering decisions and business incentives behind it. Lucas maps the technical architecture (BGP, MPLS, IXPs), while Luna pushes on the economics: who pays for undersea cables, why ISPs throttle certain traffic, and how network neutrality shapes startup access. They analyze real incidents — AWS’s Tokyo region failure, a Level 3 vs. Cogent peering war, or the latency impact of a new data-center route — and explain what network engineers actually debate in NANOG meetings. This is not a ‘how the internet works’ primer; it’s the layer-3 view for professionals who manage, build, or invest in network infrastructure. Expect granular discussions of dark fiber, CDN caching strategies, and the politics of IP address allocation. By the end, you’ll see the internet as a finite, fragile, and fiercely competitive topology — and understand why a single undersea cable cut can reset stock prices. #InternetInfrastructure #NetworkEngineering #BGP #InternetExchange #Peering #CDN #DDoS #NetworkNeutrality #DataCenters #UnderseaCables #IPAddressing #ISP #FiberNetworks #Latency #NANOG #Technology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo© 2026 Fexingo. All rights reserved. Economics
Episodes
  • How Passive Optical LANs Cut Building Network Costs

    How Passive Optical LANs Cut Building Network Costs
    Jun 19 2026
    Episode 60 of Networking Tech with Fexingo dives into Passive Optical LAN (POL) — a fiber-to-the-desk architecture that replaces traditional copper Ethernet in large buildings. Lucas explains how a single fiber strand from an Optical Line Terminal (OLT) can serve up to 128 endpoints via passive splitters, slashing cabling and power costs. He cites a real case: a 500,000-square-foot hospital that saved over 40 percent on installation and 60 percent on energy by switching from Cat6 to a GPON-based POL. Luna raises the elephant in the room — active Ethernet equipment is cheap now, so why switch? Lucas walks through the total-cost-of-ownership math, including reduced cooling, maintenance, and switch-replacement cycles. They also touch on the signal-loss budget, split ratios, and how POL handles Power over Ethernet (PoE) for security cameras and Wi-Fi access points. The verdict: POL is overkill for small offices but a no-brainer for campuses, hospitals, hotels, and multi-tenant buildings. The hosts then briefly mention that listener support via buy me a coffee dot com slash fexingo keeps the show ad-free and independent. #PassiveOpticalLAN #GPON #FiberToTheDesk #OLT #ONT #NetworkArchitecture #StructuredCabling #EnterpriseNetworking #HospitalIT #PowerOverEthernet #OpticalSplitter #TCO #EnergyEfficiency #Technology #FexingoBusiness #BusinessPodcast #NetworkEngineering #FiberOptics Keep every episode free: buymeacoffee.com/fexingo
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    13 mins
  • How Zero Touch Provisioning Automates Network Device Onboarding

    How Zero Touch Provisioning Automates Network Device Onboarding
    Jun 18 2026
    In this episode of Networking Tech with Fexingo, Lucas and Luna dive into Zero Touch Provisioning (ZTP) — the automation framework that lets network engineers deploy switches and routers without manual CLI configuration. They break down the real-world workflow using a concrete example: a retail chain rolling out 500 edge switches across 200 stores in three months. The conversation covers the role of DHCP, TFTP, and vendor-specific bootstrap scripts, contrasts ZTP with traditional staging, and explores common pitfalls like misconfigured DHCP scopes and certificate validation failures. Lucas explains how ZTP integrates with network provisioning tools like Ansible and Salt to enforce consistent configs at scale, and highlights how the retail chain reduced deployment time from 45 minutes per device to under 8 minutes. The episode also touches on the tension between automation and security — specifically, how to handle the cryptographic trust anchor for the first-time bootstrap. If you're a network engineer or IT manager looking to speed up site rollouts, this episode gives you the concrete details you need to evaluate ZTP. #ZeroTouchProvisioning #NetworkAutomation #DHCP #TFTP #NetworkProvisioning #CLI #Ansible #SaltStack #RetailNetworking #EdgeSwitches #BootstrapScript #CertificateValidation #NetworkEngineering #Technology #FexingoBusiness #BusinessPodcast #NetworkingTech #ITInfrastructure Keep every episode free: buymeacoffee.com/fexingo
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    11 mins
  • How Segment Routing IPv6 Is Simplifying WANs

    How Segment Routing IPv6 Is Simplifying WANs
    Jun 18 2026
    Segment Routing over IPv6 (SRv6) is reshaping how service providers and large enterprises build their wide-area networks. In this episode, Lucas and Luna explore a real-world deployment at a major European telecom that cut provisioning time from weeks to minutes. They explain how SRv6 embeds routing instructions directly into the IPv6 header, replacing the complexity of MPLS with a simpler, more programmable approach. The conversation covers the trade-offs with traditional MPLS, the role of network slicing, and why operators are adopting SRv6 for 5G backhaul and data center interconnect. Specific numbers include the reduction in routing table size by 40 percent and the five-year roadmap from a Tier-1 operator. If you've heard the buzz around SRv6 and want to understand what it actually changes in the network, this episode gives you the concrete case. #SegmentRouting #SRv6 #IPv6 #WideAreaNetworks #MPLS #NetworkSlicing #5GBackhaul #ServiceProvider #Routing #NetworkEngineering #Technology #FexingoBusiness #BusinessPodcast #Telecom #DeutscheTelekom #NetworkAutomation #DataCenterInterconnect #InternetInfrastructure Keep every episode free: buymeacoffee.com/fexingo
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    15 mins
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