Skip to content
Artwork for Networking Tech with Fexingo: Internet Infrastructure, Routing, and Network Engineering

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

Fexingo

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
Play
  • 66 episodes
  • daily
  • Avg 10 min
  • English

Support the show

Goes straight to the publisher. podnod takes nothing.

Counted on this page — what you have heard stays on this device, so it is not something the list can be paged by.
  • S5 · E221
    Yesterday · 8 min

    How BGP Path Selection Changes Your Internet Speed

    Lucas and Luna explore the subtle art of Best Path Selection in Border Gateway Protocol, focusing on how network engineers use metrics like Local Preference and AS Path length to steer global traffic. With internet congestion at record highs in late...

    • Transcript
  • S5 · E220
    Sunday · 9 min

    How BGP Confusion Paralyzed Global Internet

    In October 2026, a misconfigured route filter at Cloudflare triggered the largest Border Gateway Protocol incident in years. This episode breaks down exactly how a single ASN was accidentally announced as a default route, sucking traffic from twelve...

    • Transcript
  • S5 · E219
    Saturday · 14 min

    How The Internet’s Physical Map Shapes Global Trade

    Most people think the internet is a cloud, but it is actually a physical map of fiber optic cables, undersea repeaters, and routing decisions that dictate who gets bandwidth and at what cost. In this episode of Networking Tech with Fexingo, Lucas and...

    • Transcript
  • S5 · E218
    Friday · 7 min

    How BGP Hijacking Stole Billions in Bitcoin

    On October 23, 2026, we examine the mechanics of BGP hijacking and why it remains the internet’s most dangerous routing vulnerability. Lucas and Luna break down how attackers exploit the trust-based nature of Border Gateway Protocol to redirect traffic...

    • Transcript
  • S5 · E217
    October 19 · 10 min

    How ASNs Shape Internet Routing Decisions

    We explore the quiet power of Autonomous System Numbers in shaping global internet traffic. With a focus on how major content providers like Google and Netflix leverage their massive ASNs to bypass congested transit networks, we break down why peering...

    • Transcript
  • S5 · E216
    October 18 · 9 min

    The Latency Tax of Cross-Continental Cables

    In this episode, we dissect the physical reality of high-frequency trading and global commerce: latency. While BGP handles routing logic, the speed of light through fiber optic glass is the immutable ceiling for data transmission. We look at how firms...

    • Transcript
  • S5 · E215
    October 17 · 9 min

    How Border Gateway Protocol Prevents Internet Collapse

    We examine the fragile architecture of Border Gateway Protocol, the routing system that directs global internet traffic. Using the 2021 Facebook outage as a case study, we break down how route leaks and prefix hijacks can disconnect millions of users in...

    • Transcript
  • S5 · E214
    October 13 · 11 min

    How Internet Cables Find Their Way Home

    Most people think the internet is wireless, but ninety percent of global data travels through undersea fiber optic cables. This episode explores the hidden logistics of submarine cable routing, from the engineering marvels that cross ocean trenches to...

    • Transcript
  • S5 · E213
    October 13 · 9 min

    How BGP Graceful Restart Saves Internet Traffic

    When a router reboots, the internet usually holds its breath. This episode explores BGP graceful restart, the protocol feature that prevents routing blackholes during hardware failures or maintenance windows. We break down how routers exchange state...

    • Transcript
  • S5 · E212
    October 12 · 8 min

    How BGP Deploys Route Filters to Secure Internet Routing

    Internet routing relies on the Border Gateway Protocol to move traffic between autonomous systems, but its trust-based design created vulnerabilities that led to massive outages. This episode examines how network engineers use prefix filtering and origin...

    • Transcript
  • S5 · E211
    October 11 · 12 min

    How BGP Route Leaks Paralyze Internet Traffic

    We examine the mechanics of BGP route leaks, using the October 2026 incident where a single misconfigured router in Southeast Asia caused widespread connectivity failures across three continents. Lucas and Luna break down how default-accept policies...

    • Transcript
  • S5 · E210
    October 10 · 8 min

    The Hidden Cost of Internet Redundancy

    Most people assume that having two internet connections means double the speed. In reality, it usually just doubles the complexity and cost without fixing the real bottleneck: asymmetric routing and stateful firewalls. This episode explores how network...

    • Transcript
  • S5 · E209
    October 9 · 10 min

    How The Internet Forwards Your Data Packets

    We look at the specific mechanics of packet forwarding within routers, moving beyond routing decisions to the actual hardware-level switching that determines your latency. Lucas and Luna examine how modern network devices handle millions of packets per...

    • Transcript
  • S5 · E208
    October 8 · 10 min

    How Internet Cables Actually Find Their Way Home

    We trace the physical journey of data from your laptop to a transoceanic cable landing in Virginia, exploring how undersea infrastructure is being upgraded with new repeaters and fiber pairs. Lucas breaks down the engineering constraints of latency and...

    • Transcript
  • S5 · E207
    October 7 · 12 min

    The Hidden Tax of Internet Latency

    Every millisecond of latency costs the global economy billions, yet most businesses treat network delay as an inevitable background noise. In this episode, Lucas and Luna break down the specific mechanics of packet loss and jitter that silently erode...

    • Transcript
  • S5 · E206
    October 6 · 12 min

    How Internet Traffic Gets Shaped by QoS

    Network engineers use Quality of Service rules to decide which data packets get priority during congestion. This episode breaks down the mechanics of traffic shaping and policy-based routing using a specific enterprise network case from October 2026. We...

    • Transcript
  • S5 · E205
    October 5 · 13 min

    How IPv6 Solves The Internet Address Crisis

    We explore why the original internet address system ran out of space and how the industry migrated to IPv6. Lucas walks through the math behind forty-three quintillion addresses, while Luna examines the real-world friction of dual-stack deployment in...

    • Transcript
  • S5 · E204
    October 4 · 11 min

    How DNS Caching Speeds Up Your Web Browsing

    We dive into the often-overlooked hero of internet performance: DNS caching. While most people focus on fiber optic cables or server hardware, the Domain Name System acts as the internet’s phonebook, translating human-readable domain names into IP...

    • Transcript
  • S5 · E203
    October 3 · 11 min

    The Hidden Cost of BGP Peering Agreements

    We explore how the silent, private contracts between internet backbone providers actually determine your connection speed and reliability. Lucas and Luna break down the economics of peering disputes, using a specific recent outage to show how business...

    • Transcript
  • S5 · E202
    October 2 · 8 min

    How Internet Cables Choose Your Data Path

    Every packet of data traveling across the internet follows a path determined by complex routing protocols, but most users never think about why their connection feels slow or unstable. In this episode, Lucas and Luna dive into Border Gateway Protocol, or...

    • Transcript
Showing 1–20 of 66 episodes