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

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

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

  • How Zero Trust Networking Changes Security Architecture

    This episode of Networking Tech with Fexingo explores Zero Trust Network Architecture — what it really means, why it's replacing the old castle-and-moat model, and how a major bank like JPMorgan Chase began implementing it in 2024. Lucas explains the concept of micro-segmentation and the 'never trust, always verify' principle, while Luna raises real-world deployment challenges. The conversation also covers the role of identity-based access, the shift from perimeter security to per-request authorization, and why cloud migration is accelerating ZTNA adoption. If you're curious about how networks are being re-architected for a zero-trust world, this episode gives you the concrete case and key trade-offs.

    #ZeroTrust #NetworkSecurity #ZTNA #MicroSegmentation #JPMorganChase #IdentityBasedSecurity #CloudMigration #PerimeterSecurity #LeastPrivilege #Infrastructure #Technology #FexingoBusiness #BusinessPodcast #Networking #CyberSecurity #EnterpriseArchitecture #RemoteWork #SoftwareDefinedPerimeter

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    8 min
  • How MPLS Still Powers Enterprise Networks

    Episode 11 of Networking Tech with Fexingo digs into Multiprotocol Label Switching (MPLS), the decades-old routing technology that still underpins most enterprise wide-area networks. Lucas and Luna explain how MPLS works by creating virtual circuits through provider backbones, why it survives despite cloud migration and SD-WAN hype, and where it's being quietly retired. Using a real example—a Fortune 500 retailer replacing MPLS with SD-WAN across 500 stores—the hosts break down the cost, latency, and security trade-offs. They also touch on MPLS's hidden role in cellular backhaul and 5G transport. No clickbait, no buzzwords: just a clear, conversational look at a technology that refuses to die.

    #MPLS #EnterpriseNetworking #SDWAN #WAN #Routing #NetworkEngineering #CellularBackhaul #5G #Fortune500 #Latency #QoS #CloudMigration #Technology #BusinessPodcast #FexingoBusiness #NetworkingTech #InternetInfrastructure #Telecom

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    8 min
  • How Network Observability Replaces Old Monitoring

    Episode 10 of Networking Tech with Fexingo dives into network observability — a shift from traditional monitoring to real-time, data-driven insight. Lucas and Luna explore how tools like eBPF and open telemetry are giving engineers unprecedented visibility into packet flows, application performance, and security anomalies. They break down a real example: how a major streaming service used observability to cut incident response time by 60 percent. The conversation covers the difference between monitoring and observability, the role of high-cardinality data, and why this matters for every network engineer. No fluff, just practical tech.

    #NetworkObservability #eBPF #OpenTelemetry #NetworkEngineering #Monitoring #SiteReliabilityEngineering #PacketAnalysis #CNCF #Grafana #Prometheus #Honeycomb #Observability #Technology #Podcast #FexingoBusiness #BusinessPodcast #NetworkingTech #Infrastructure

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    11 min
  • How Network Slicing Is Reshaping Private 5G Networks

    Episode 9 of Networking Tech with Fexingo dives into network slicing — the technology that lets mobile operators carve a single 5G tower into multiple virtual networks, each with guaranteed latency and bandwidth. Lucas and Luna walk through a real-world case: how Volkswagen uses a private 5G slice at its Wolfsburg factory to control automated guided vehicles with sub-10 millisecond latency, while the same tower handles employee smartphones and visitor Wi-Fi. They explain the role of the 5G core's Network Slice Selection Function (NSSF), how the GSMA's Generic Slice Template standard (GST) defines parameters like 'maximum packet loss rate' and 'jitter', and why this is a threat to legacy SD-WAN architectures. They also touch on the challenge of inter-operator slicing and the work of the 3GPP's Release 18 specs. If today's tech conversation gave you something usable, consider supporting the show at buy me a coffee dot com slash fexingo.

    #NetworkSlicing #Private5G #5GCore #Volkswagen #Wolfsburg #NSSF #GSMA #GST #3GPP #Release18 #SDWAN #IndustrialIoT #Latency #Jitter #ServiceLevelAgreement #Technology #FexingoBusiness #BusinessPodcast

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    12 min
  • How Network Peering Agreements Shape Your Internet Speed

    Lucas and Luna unpack the invisible backbone of internet performance: network peering agreements. This episode drills into the 2024-2025 dispute between Cogent Communications and several major transit providers, and how a single disagreement over 'settlement-free peering' degraded user experience for millions. They explain the difference between transit and peering, the role of interconnection points like Equinix and AMS-IX, and why contracts—not just fiber—determine whether your Netflix stream buffers. A concrete look at the business deals that literally route your data.

    #NetworkPeering #CogentCommunications #InternetExchangePoints #BGP #Transit #SettlementFreePeering #Equinix #AMSIX #NetNeutrality #ISP #CDN #Latency #Bandwidth #Interconnection #Technology #FexingoBusiness #BusinessPodcast #NetworkingTech

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    13 min
  • The Hidden Math Behind Network Latency

    In this episode of Networking Tech with Fexingo, hosts Lucas and Luna explore the physics and engineering that determine network latency—why your data doesn't travel at the speed of light, and how companies like Cloudflare and Akamai use edge computing to shave milliseconds. They break down the real-world impact of latency on everything from video calls to algorithmic trading, and explain why a few seconds of delay can cost millions. Lucas walks through the mechanics of fiber optics, the limits of light in glass, and the role of network engineering in minimizing packet travel time. A must-listen for anyone curious about what happens between sending a request and getting a response.

    #NetworkLatency #SpeedOfLight #EdgeComputing #Cloudflare #Akamai #FiberOptics #InternetInfrastructure #NetworkEngineering #Latency #CDN #Trading #VideoCalls #Technology #FexingoBusiness #BusinessPodcast #TechPodcast #Networking #DataTransmission

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    8 min
  • How SD-WAN Is Quietly Rewiring the Corporate Network

    Episode 6 of Networking Tech with Fexingo unpacks software-defined wide-area networking (SD-WAN) — the technology that is quietly replacing MPLS circuits in thousands of corporate branch offices. Lucas and Luna walk through a real-world deployment at a 500-store retail chain, where SD-WAN slashed monthly connectivity costs by 40 percent and cut failover time from minutes to milliseconds. They explain the architecture: how a centralized controller steers traffic over broadband, LTE, and MPLS links simultaneously, and why security policies are now baked into the network fabric rather than bolted on at the edge. The conversation touches on the trade-offs — SD-WAN can introduce jitter for real-time apps if not tuned — and looks ahead to the role of AI-driven operations (AIOps) in managing these dynamic networks. If you manage branch connectivity or simply want to understand why your corporate VPN feels faster, this episode gives you a concrete case and a clear mental model.

    #SDWAN #SoftwareDefinedNetworking #Networking #Technology #FexingoBusiness #BusinessPodcast #MPLS #AIOps #WANOptimization #BranchOffice #RetailTech #CloudNetworking #NetworkSecurity #Latency #Bandwidth #ZeroTrust #EdgeComputing #NetworkEngineering

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    9 min
  • How Subsea Cables Become the Internet's Hidden Chokepoint

    This episode of Networking Tech with Fexingo drills into a single vulnerable piece of the internet: the subsea cable system that carries 99% of intercontinental data traffic. Lucas and Luna trace a real 2024 outage in West Africa caused by a single ship anchor dragging across cables off Abidjan. They explain why the cable repair fleet has shrunk to 60 vessels worldwide, how geopolitical tensions affect cable landings, and what it means for cloud availability zones. No broad history of cables — this is about fragility, repair economics, and the quiet monopoly of a handful of companies like SubCom and Alcatel Submarine Networks. If you work in networking or cloud infrastructure, this episode shows why your disaster recovery plan might rely on a ship that's booked three weeks out.

    #SubseaCables #InternetInfrastructure #CableBreak #NetworkEngineering #CloudResilience #UnderseaCables #WestAfrica #CableRepair #SubCom #AlcatelSubmarineNetworks #AvailabilityZones #DataCenters #Latency #Redundancy #Technology #FexingoBusiness #BusinessPodcast #NetworkingTech

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    9 min
  • How Internet Exchange Points Shape the Web

    In this episode of Networking Tech with Fexingo, Lucas and Luna dive into the hidden backbone of the internet: Internet Exchange Points (IXPs). They explore how IXPs like DE-CIX in Frankfurt and AMS-IX in Amsterdam reduce latency, cut costs, and keep data flowing efficiently. Using real-world examples, Lucas explains how a single IXP can handle over 10 terabits per second of traffic and why peering agreements matter more than most people realize. The conversation also touches on the economics of interconnection and how IXPs democratize access for smaller networks. Perfect for network engineers, tech enthusiasts, and anyone curious about what makes the internet actually work.

    #InternetExchangePoint #IXP #DE-CIX #AMS-IX #Peering #NetworkInfrastructure #Latency #Bandwidth #BGP #Routing #Interconnection #DataCenters #Technology #Podcast #NetworkingTech #FexingoBusiness #BusinessPodcast #TechInsights

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    12 min
  • Why DNS Is the Internet's Quietest Bottleneck

    Episode 3 of Networking Tech with Fexingo dives into the Domain Name System—the phonebook of the internet that translates domain names into IP addresses. Lucas and Luna unpack how a single DNS query can travel through up to eight recursive resolvers, what happened when Dyn DNS was hit by the 2016 Mirai botnet attack, and why a 100-millisecond delay in DNS response can cost an e-commerce site millions in lost revenue. They explain the difference between anycast routing and traditional DNS architecture, the role of root servers (only 13 logical root servers globally, but hundreds of physical instances), and how new protocols like DNS over HTTPS are changing privacy and performance. With concrete examples from the 2021 Fastly outage and real-world latency benchmarks, this episode shows why DNS is often the quietest—and most critical—bottleneck in modern internet infrastructure.

    #DNS #DomainNameSystem #InternetInfrastructure #NetworkEngineering #Anycast #RootServers #MiraiBotnet #DynDNS #FastlyOutage #DNSOverHTTPS #Latency #RecursiveResolver #TTL #Technology #Networking #FexingoBusiness #BusinessPodcast #InternetBottleneck

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    10 min

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

From the publisher's feed

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.