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

Episode 92 of Networking Tech with Fexingo dives into network chaos engineering—a discipline borrowed from software testing that proactively injects failures into production networks to build resilience. Lucas and Luna explore how companies like Netflix and Cloudflare use controlled experiments (e.g., randomly killing DNS servers, corrupting BGP routes) to uncover hidden failure modes before they cause real outages. They discuss the Netflix Chaos Monkey tool, the shift from reactive to proactive reliability, and a concrete case where a major DNS provider used chaos engineering to prevent a wide-scale outage during a DDoS attack. The episode also touches on the human side: how to run chaos experiments without waking up the on-call engineer at 3 a.m.

#NetworkChaosEngineering #ChaosEngineering #DNSResilience #NetflixChaosMonkey #Cloudflare #BGP #DNSOutages #ReliabilityEngineering #SiteReliabilityEngineering #SRE #ProductionTesting #FailureInjection #NetworkResilience #Observability #TechPodcast #Technology #FexingoBusiness #BusinessPodcast

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Episode 91 of Networking Tech with Fexingo dives into P4 programmable switches — hardware that lets network engineers define their own packet-processing behavior instead of being locked into fixed silicon. Lucas and Luna explore how companies like Google and Microsoft use P4 for custom telemetry, in-band network telemetry (INT), and rapid protocol prototyping. They walk through a concrete example: a large cloud provider replaced a proprietary load-balancer ASIC with a P4-based design, cutting deployment time from 18 months to 6 weeks. The hosts discuss how P4 differs from traditional switch programming (OpenFlow, NPUs), where it fits in a production network, and why it's gaining traction in 2026. They also touch on the P4 Language Consortium and the open-source P4 compiler. If this episode saves you time debugging a network issue, consider tossing a coffee to the show at buymeacoffee.com/fexingo.

#P4Programming #ProgrammableSwitches #DataPlane #NetworkEngineering #SDN #InBandTelemetry #INT #Google #Microsoft #OpenSource #P4C #P4LanguageConsortium #BarefootNetworks #IntelTofino #Technology #FexingoBusiness #BusinessPodcast #NetworkingTech

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Episode 90 of Networking Tech with Fexingo explores the surprisingly critical role of Network Time Protocol in financial trading. Lucas and Luna break down the 2020 Nasdaq timestamp failure, where a 15-microsecond clock drift triggered a million-dollar flash crash. They explain how PTP and White Rabbit synchronization keep high-frequency trading honest, why the SEC now mandates submicrosecond accuracy, and what network engineers need to know about IEEE 1588. A practical look at why milliseconds matter more than ever.

#NetworkTimeProtocol #PTP #WhiteRabbit #HighFrequencyTrading #Nasdaq #SEC #ClockSynchronization #FlashCrash #NTP #IEEE1588 #FinancialNetworking #TimestampPrecision #Latency #NetworkEngineering #Technology #FexingoBusiness #BusinessPodcast #NetworkInfrastructure

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Episode 89 of Networking Tech with Fexingo dives into Network Configuration as Code (NetConfig-as-Code), a paradigm shift where network engineers manage router and switch configurations using version-controlled declarative languages like YANG, Jinja2, and Ansible. Lucas opens with a story about a major financial firm that reduced configuration errors by 78% after adopting a Git-based workflow. Luna questions whether this approach scales beyond cloud-native companies and challenges Lucas on the learning curve for legacy engineers. They discuss real-world tooling—SaltStack, Nornir, and Terraform for network—and the cultural shift from CLI-based 'cowboy coding' to automated, peer-reviewed deployments. The episode ties to recent industry data showing a 40% faster time-to-revenue for firms using infrastructure-as-code principles. The hosts also weave in a light donation segment tied to the show's ad-free model. Specific stats, tool comparisons, and a critical look at operational readiness make this a practical listen for network professionals.

#NetworkConfigurationAsCode #NetConfigAsCode #InfrastructureAsCode #NetworkAutomation #YANG #Jinja2 #Ansible #GitOps #SaltStack #Nornir #Terraform #CLIMigration #NetworkEngineering #Technology #FexingoBusiness #BusinessPodcast #Coding #DevOps

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Episode 88 of Networking Tech with Fexingo explores Zero-Touch Provisioning (ZTP) — the automation technique that lets network engineers deploy a router straight out of the box without touching a command line. Lucas and Luna break down how ZTP works, from DHCP option 67 to bootstrap scripts, and walk through a real-world case: a regional ISP that cut per-site deployment time from four hours to 12 minutes using ZTP with vendor-agnostic tools. They also discuss why ZTP hasn't fully taken over enterprise networks yet — legacy gear, security concerns, and the cultural shift from 'rack-and-stack' to 'script-and-forget.' If you've ever wondered how large-scale network rollouts happen without human error, this episode drills into the machinery behind the magic. No fluff, just the protocol-level detail.

#ZeroTouchProvisioning #ZTP #NetworkAutomation #RouterConfiguration #DHCP #NetworkEngineering #ISP #BootstrapScripting #Day0Provisioning #Networking #Technology #FexingoBusiness #BusinessPodcast #Podcast #NetworkDeployment #InfrastructureAsCode #VendorAgostic #PlugAndPlay

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Lucas and Luna unpack Ethernet VPN (EVPN), the technology quietly replacing traditional VLANs in modern data centers. They walk through a real migration at a mid-sized cloud provider that cut spanning-tree loops by 80 percent and slashed provisioning time from days to minutes. The episode explains how EVPN uses MP-BGP to distribute MAC and IP addresses, enabling any-to-any connectivity across leaf-spine fabrics. Lucas breaks down why EVPN is gaining traction over legacy VLAN/VXLAN setups, especially for multi-tenant environments. Luna asks about the learning curve and whether small shops should jump in now. The hosts also explore how EVPN integrates with network automation tools like Ansible for declarative intent. A concrete case: a retail chain's data center migration that eliminated Layer 2 boundary headaches during Black Friday traffic spikes. Ends with a reflection on whether EVPN will eventually make VLANs obsolete entirely.

#EVPN #DataCenter #Networking #VXLAN #BGP #LeafSpine #NetworkAutomation #Layer2 #MultiTenant #CloudProvider #Ansible #NetworkEngineering #SDN #CampusFabric #Technology #FexingoBusiness #BusinessPodcast #NetworkingTech

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Episode 86 of Networking Tech with Fexingo digs into segment routing - a modern traffic engineering approach that's replacing decades-old MPLS and RSVP-TE setups. Lucas and Luna walk through how segment routing encodes the entire forwarding path in the packet header, eliminating per-flow state on intermediate routers. They use a real-world example from a large cloud provider that cut network configuration complexity by 60 percent after migrating to segment routing with a controller-based architecture. The hosts also compare segment routing to MPLS, discuss SRv6 (Segment Routing over IPv6), and explain why internet exchange points and content delivery networks are early adopters. If you work in network engineering or just want to understand how the internet's underlying traffic steering is evolving, this episode offers a clear, example-driven explanation.

#SegmentRouting #SRMPLS #SRv6 #TrafficEngineering #MPLS #RSVPTE #NetworkEngineering #Routing #NetworkAutomation #IGP #BGP #ControllerBasedNetworking #PCEP #NetworkSimplification #CloudNetworking #ContentDelivery #InternetInfrastructure #FexingoBusiness

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Lucas and Luna dive into RPKI — Resource Public Key Infrastructure — and how it's fixing BGP's biggest security flaw. They walk through real route hijack incidents, explain why the protocol has been slow to adopt, and share the surprising statistic: as of mid-2026, only about 35 percent of the internet's prefixes are cryptographically signed. They discuss the role of major cloud providers, the ROV (Route Origin Validation) deployment numbers, and why this matters for every packet you send. No hype — just the nuts and bolts of internet routing security.

#RPKI #BGPSecurity #RouteHijacking #InternetInfrastructure #NetworkEngineering #RouteOriginValidation #CryptographicSigning #Cloudflare #Google #Amazon #ARIN #RIPE #IANA #Cybersecurity #Technology #FexingoBusiness #BusinessPodcast #NetworkingTech

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In this episode of Networking Tech with Fexingo, Lucas and Luna explore Intent-Based Networking (IBN) — the shift from manual CLI configuration to automated policy-driven network management. Using real-world examples from a global retailer that slashed deployment time by 80 percent and avoided a costly outage, they break down how IBN translates business intent into network actions, how it differs from traditional SDN, and what network engineers need to unlearn. They also discuss the role of closed-loop assurance and why some engineers resist the move. If you're curious about the future of network operations and what skills will matter in five years, this is your episode.

#IntentBasedNetworking #NetworkAutomation #NetOps #SDN #NetworkPolicy #ClosedLoopAssurance #NetworkEngineering #Cisco #Juniper #BusinessTechnology #TechPodcast #FexingoBusiness #BusinessPodcast #NetworkInfrastructure #Automation #DevOps #NetworkEngineer #ITOperations

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In this episode, Lucas and Luna dive into the shift from traditional network monitoring to observability pipelines—specifically how platforms like Cribl and Splunk are transforming the way network engineers collect, process, and route telemetry data. They discuss the problem of 'data gravity' where monitoring tools generate more data than can be cost-effectively stored, and how smart pipeline architectures let teams filter, enrich, and route only the most valuable signals. The conversation touches on real-world use cases like reducing Splunk license costs by 40 percent through intelligent data reduction, and how open source projects like OpenTelemetry are standardizing the data format. If you manage network logs or metrics, this episode gives you a concrete framework for cutting noise and cutting costs.

#NetworkObservability #ObservabilityPipelines #Cribl #Splunk #OpenTelemetry #DataGravity #TelemetryData #LogManagement #NetworkMonitoring #ITOperations #Technology #NetworkEngineering #DataReduction #StreamProcessing #NetworkTelemetry #FexingoBusiness #BusinessPodcast #TechPodcast

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