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

In this episode of Networking Tech with Fexingo, Lucas and Luna dig into a surprisingly common but little-known internet failure mode: the BGP wedgie. They walk through a realistic example where two networks' routing policies lock each other into a black hole, explain why the internet doesn't just heal itself, and reveal how operators are using route flapping, path hunting, and automated mitigation to climb out of these holes faster. If you've ever wondered why your traffic disappears for minutes without a peep from your ISP, this is the episode for you. Lucas shares a specific case from a Tier 1 backbone, Luna challenges the assumption that BGP is self-healing, and together they explore whether the future holds smarter routing or just better Band-Aids. Tune in for a concrete, jargon-busted look at one of the internet's most persistent gremlins.

#BGPWedgie #InternetRouting #NetworkEngineering #BGP #RoutingProtocols #NetworkOutage #BlackHole #Tier1 #ISP #RouteFlapping #PathHunting #NetworkAutomation #Technology #Business #FexingoBusiness #BusinessPodcast #NetworkingTech #TechExplained

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In episode 161 of Networking Tech with Fexingo, Lucas and Luna dig into the mechanics of segment routing, focusing on how it's changing network resilience. They explore the difference between traditional hop-by-hop routing and source-based path selection, using the analogy of a road trip with a pre-planned route versus relying on gas station attendants. The conversation covers real-world benefits like fast reroute, path redundancy, and simpler operations, and touches on how segment routing integrates with MPLS and SRv6. They also discuss the shift from CLI to automation, tying back to earlier episodes. If you've ever wondered how networks stay up even when links fail, this episode gives you a concrete look at the tools that make it happen. No prior deep networking knowledge required—just curiosity about how the internet keeps running.

#SegmentRouting #NetworkResilience #InternetInfrastructure #SRMPLS #SRv6 #FastReroute #NetworkEngineering #BGP #MPLS #NetworkAutomation #TechPodcast #NetworkingTech #FexingoBusiness #BusinessPodcast #Technology #NetworkTelemetry #NetworkVerification #NetworkOperations

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In this episode of Networking Tech with Fexingo, Lucas and Luna explore the next big evolution in internet routing: the transition from MPLS-based segment routing to SRv6, and how this shift is enabling new capabilities like network slicing. They discuss the practical benefits of SRv6 for operators, including simplified operations and better support for 5G and edge computing, while also addressing the challenges of adoption, such as the need for hardware upgrades and the security considerations introduced by IPv6. The conversation touches on real-world examples, like how major service providers are testing SRv6 in production, and the role of open-source initiatives in accelerating deployment. Tune in to understand why SRv6 is poised to replace MPLS in many networks and what it means for the future of internet infrastructure.

#NetworkingTech #FexingoBusiness #SRv6 #SegmentRouting #NetworkSlicing #IPv6 #InternetInfrastructure #NetworkEngineering #5G #EdgeComputing #MPLS #Telecom #NetworkAutomation #Technology #BusinessPodcast #Fexingo #NetworkOperators #Routing

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In this episode of Networking Tech with Fexingo, Lucas and Luna explore the internet's trust problem: BGP, the protocol that routes traffic across the globe, was designed for a trusted network, but route hijacks and leaks have become a daily threat. They focus on Resource Public Key Infrastructure (RPKI), a cryptographic framework that lets network operators sign their route announcements, and the adoption curve that's been accelerating since major incidents like the 2018 Amazon hijack. Lucas explains how RPKI works, why only about 40 percent of the internet's routes are currently protected, and what it means for the future of routing security. The conversation hits on the practical challenges—like operator inertia and the risk of accidental route invalidation—and the push from cloud providers and content delivery networks to make RPKI the new normal. If you've ever wondered how the internet decides which path your data takes, and how it's learning to avoid the bad guys, this episode is for you.

#BGP #RPKI #InternetSecurity #RoutingProtocols #NetworkEngineering #RouteHijacking #BGPLeaks #InternetInfrastructure #Cybersecurity #NetworkOperators #ASNumber #RouteOriginAuthorization #CryptographicSecurity #TechPodcast #FexingoBusiness #BusinessPodcast #Technology #NetworkingTech

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In this episode of Networking Tech with Fexingo, Lucas and Luna break down BGP Flowspec, a technology that's quietly changing how network operators defend against DDoS attacks. They explain how Flowspec works, why it's more precise than traditional RTBH, and how it's being deployed at scale by ISPs and large enterprises. With a concrete example from a Tier 1 provider handling a multi-terabit attack, the hosts walk through the setup, the limitations, and the future of this protocol. If you've ever wondered how the internet survives massive floods of traffic, this episode gives you a clear, practical look at one of the essential tools in a network engineer's arsenal.

#BGPFlowspec #DDoSProtection #NetworkSecurity #InternetInfrastructure #RoutingProtocols #NetworkEngineering #ISP #Tier1 #TrafficFiltering #RTBH #NetworkResilience #CyberDefense #Technology #Networking #FexingoBusiness #BusinessPodcast #Infosec #DDoS

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Network outages cost millions and erode trust. But what if you could prove your network will work before you touch it? In this episode, Lucas and Luna explore the rise of network verification — the practice of mathematically proving that routing and configuration changes won't break your network. They dig into how companies like Amazon and Microsoft use formal methods to check BGP policies and firewall rules, and how tools like Batfish are bringing verification to the masses. They discuss real-world incidents that could have been prevented — like the 2017 Amazon S3 outage caused by a typo — and why verification is becoming a standard practice in network engineering. If you've ever made a change at 2 AM and prayed it would work, this episode is for you.

#NetworkVerification #FormalMethods #NetworkReliability #BGP #DataCenterNetworking #NetworkEngineering #Automation #NetworkAutomation #NetworkOperations #IncidentResponse #AmazonS3Outage #MicrosoftAzure #Batfish #NetworkConfiguration #InfrastructureAsCode #Technology #FexingoBusiness #BusinessPodcast

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As BGP struggles with the Internet's growing complexity, network operators are increasingly turning to Segment Routing to simplify traffic engineering and improve resilience. In this episode, Lucas and Luna explore how Segment Routing MPLS (SR-MPLS) and Segment Routing over IPv6 (SRv6) are being adopted by major service providers and cloud operators. They break down a concrete example of a large content delivery network that halved its BGP table size by using SR-MPLS, and discuss what this means for the future of inter-domain routing. They also address the challenges of migration and the role of new tools like BGP Link State (BGP-LS) and Path Computation Element Protocol (PCEP). If you've ever wondered why your internet connection sometimes takes a detour, or how networks are evolving to handle the demands of AI and 5G, this episode will give you a clear picture of the shift happening behind the scenes.

#SegmentRouting #BGP #SRMPLS #SRv6 #InternetRouting #NetworkEngineering #TrafficEngineering #BGP-LS #PCEP #ServiceProvider #CloudNetworking #DataCenter #AI #5G #NetworkResilience #FexingoBusiness #BusinessPodcast #Technology

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In episode 155 of Networking Tech with Fexingo, Lucas and Luna dig into the quiet workhorse of internet routing: BGP communities. These 32-bit tags attached to routing prefixes let network operators signal everything from geographic location to route preference without rewriting global routing tables. The hosts walk through how a misconfigured community can accidentally hijack traffic (remember the 2018 Amazon Route 53 incident?), how communities enable fine-grained traffic engineering that keeps content delivery networks fast, and why the move from 16-bit to 32-bit communities is unlocking new possibilities. They also touch on the delicate trust balance communities rely on, and how automation is making community handling more consistent. Expect concrete examples, a look at real-world operational hiccups, and a clear takeaway about a routing feature that rarely gets the spotlight but shapes your everyday internet experience.

#BGPCommunities #InternetRouting #NetworkEngineering #RoutingPolicy #BGP #TrafficEngineering #NetworkAutomation #42Community #AmazonRoute53 #CDN #InternetInfrastructure #ISP #Technology #Networking #FexingoBusiness #BusinessPodcast #TechPodcast #NetworkOperations

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Border Gateway Protocol, the glue of the global internet, is under pressure from route leaks, hijacks, and the sheer scale of modern networks. In this episode, Lucas and Luna explore how operators are fighting back with RPKI, BGPsec, and new operational practices. They break down why the internet's routing table keeps growing, what that means for resilience, and why every network engineer should care about path validation. Learn why RPKI adoption is accelerating, the limits of BGPsec, and how route leaks like the 2023 Okta incident are driving change. If you've ever wondered how your packets find their way across the internet without getting lost, this is the episode for you. Plus, Lucas and Luna discuss how listeners can keep the show ad-free and independent.

#BGP #RoutingSecurity #RPKI #InternetInfrastructure #NetworkEngineering #RouteLeaks #BGPsec #NetworkResilience #InternetRouting #NetworkOps #Technology #FexingoBusiness #BusinessPodcast #TechPodcast #NetworkEngineer #RoutingTable #InternetGovernance #Podcast

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In this episode of Networking Tech, Lucas and Luna drill into the internet's most fragile point: the Border Gateway Protocol. They explain why BGP, a protocol from the 1980s, still underpins global routing, and how the industry is finally fighting back against route leaks and hijacks. With recent high-profile incidents still fresh, they walk through real-world examples like the 2008 YouTube hijack and the 2024 AS7007 cascade, then unpack the practical fixes: RPKI, BGPsec, and the role of major cloud providers in pushing adoption. The conversation covers why the protocol is so hard to secure, what operators can do today, and where the internet might be in five years. If you've ever wondered why a wrong BGP announcement can take down half the web, this episode gives you the concrete mechanics and the momentum behind a more secure routing system.

#BGP #BorderGatewayProtocol #RouteLeaks #RouteHijacks #RPKI #BGPsec #InternetSecurity #NetworkEngineering #Routing #InternetInfrastructure #CyberSecurity #CloudProviders #NetworkOperations #TechPodcast #FexingoBusiness #BusinessPodcast #NetworkAutomation #InternetResilience

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