N4N057: The Art of Troubleshooting
As a network engineer, you’ll end up with a lot of weird problems to solve. Many times, the problems will not be with the network at all, and it’ll be up to you to figure it all out. But how? Ethan and Holly discuss techniques for effective troubleshooting. Those techniques include how to gather accurate... Read more »D2DO304: Observability in the Age of AI
As AI matures, it becomes increasingly important to know how it’s performing and what it actually costs. Ned and Kyler are joined by Anuj Tyagi, Senior Site Reliability Engineer for RingCentral, to discuss the critical shift toward AI observability. AI observability is not just about costs; Anuj breaks down why observability has to include agent... Read more »PP113: Patch Gaps, Pretexting, and AI Use for Crimes and Crimefighting: 2026 Verizon DBIR Highlights
The Verizon Data Breach Investigations Report (DBIR) is a postmortem of a year’s worth of cyber incidents and breaches, and a snapshot of how well organizations are responding to actual threats. Drew and JJ share highlights from the 2026 installment, including: For the first time, vulnerability exploits top the list for initial access What a... Read more »HW081: What to Do About the 6GHz Upper Band Split
The upper 6 gigahertz band is fracturing among national lines after a verdict from regulatory bodies in the UK and the EU. While the US enjoys full Wi-Fi access along the entire 1200 megahertz, the EU has decided to reserve most of the upper band for mobile services, and the UK is testing a split... Read more »NB578: Cisco Goes All-In on AI Ops with Cloud Control; China Floats Underwater Data Center
Take a Network Break! Our Red Alert covers a critical Android vulnerability that could lead to local privilege escalation to root. On the news front, we dig into Cloud Control, Cisco’s ambitious AI ops platform that spans its networking, security, compute, observability, and collaboration portfolios. We also talk about Cisco Live Protect, which provides pre-patch... Read more »HN830: Tailscale CEO on WireGuard, Zero Trust, and Securing AI (Sponsored)
If you think Tailscale is just a VPN for the home lab, think again. On today’s sponsored episode Ethan and Drew are joined by Tailscale CEO Avery Pennarun. Avery explains how the company has evolved into an enterprise-grade connectivity and security platform. He also dives into Tailscale Aperture, their new AI gateway designed to bring... Read more »TNO064: The Realities of Running SONiC at Scale
Scott is joined by Brett Lykins, a Senior Systems Development Engineer at Amazon. Brett works with software-defined infrastructure built around SONiC (Software for Open Networking in the Cloud). Together they dig into what it’s actually like to use, maintain, and operate a network this way. They also discuss not just the architecture, but the day-to-day... Read more »LIU016: Michael Keith Lewis: The Network Behind the Show
Today’s guest takes us behind the scenes of modern concert venues, which rely on wired and wireless IP networking. Michael Keith Lewis is a front-of-house engineer, tour manager, audio creator, and co-founder of Truck Packer. Michael shares his career path from starting in a church, quitting a salaried job to tour with his favorite band,... Read more »NAN124: AI and Trust in Modern Network Automation
Sif Baksh joins Eric Chou to share his professional experience and resources to help engineers get their arms around using AI in network automation. They discuss practical advantages of AI over standard Python scripts and the risks and benefits of vibe coding for prototyping. Sif also breaks down the P.E.N.E. framework, a structure for writing... Read more »TCG077: News Roundtable: Data Center Backlash and the AI Chip War
William and Eyvonne discuss recent tech news, including the growing political and community opposition to AI data centers driven by fears over power and water usage. They also analyze the “AI Chip War” as hyperscalers such as AWS and Google invest in specialized silicon for training and inference. Episode Links: Amid backlash, O’Leary Digital CEO... Read more »PP112: When You Look But Don’t Find: The Art of Knowing When to Stop
Starting an investigation—be it for troubleshooting, problem diagnosis, threat hunting, incident response, and so on—is fairly straightforward. There’s a question or thesis you’re pursuing, you have logs and data sources to check, and you have tools to deploy. But if you don’t find anything, does that mean there was nothing to find? Are you sure... Read more »HS134: Dodging the AI Iceberg: Midcourse Corrections
By now most organizations have AI strategies (among their other tech strategies). But how do you know when it’s time to make a midcourse correction? Better still: How can you predict when, and what kind of corrections you might need? John and Johna discuss, and tell the story of how a university prepared for technology... Read more »
NB577: Cisco Brings SONiC to N9000 Switches; Broadcom Debuts Wi-Fi 8 SoCs for Consumer Routers
Take a Network Break! We start with listener followup and a red alert affecting ScadaBR, an open source SCADA controller. On the news front, Forward adds predictive testing to its network digital twin software, Qumulo and Cisco team up to offer cloud-bursting for file storage, and NetBrain adds new skills and other updates to its... Read more »HN829: EVPN/VXLAN Vs. TradCore
Drew and Ethan sit down with Tony Bourke to determine whether TradCore or EVPN VXLAN is right for your network. Tony is a seasoned instructor in automation, network design, and more. They explore the key factors for choosing a design, including scale and redundancy, operational complexity, and workload mobility. AdSpot Sponsor: Auvik Sponsor Auvik Network... Read more »IPB201: The Never-Ending Prefix Debate: Revisiting Best Current Practices
Today’s conversation centers around a new Best Current Practices (BCP) RFC draft written by Jordi Martinez. Our hosts explore the document for service providers and enterprises, including prefix sizing for point-to-point links, the pros and cons of numbering choices, and best practices for prefix pool allocation. Episode Links: IPv6 Prefix Assignment to End-Sites – RFC... Read more »N4N056: A Wireless NAC Walkthrough
In the previous episode of N is for Networking, Jennifer “JJ” Jabbusch gave us a thorough overview of Network Access Control (NAC) for wired networks. This week we’re going wireless! JJ walks us through the major differences between wired and wireless NAC, how 802.1X is more seamless in Wi-Fi deployments, the unpredictability of web portals,... Read more »D2DO303: Commiserating About AI with Ned and Kyler
Hosts Ned and Kyler compare notes on everything they’ve been doing with AI, including the successes they’ve enjoyed and headaches they’ve suffered building and implementing AI agents. They talk about how AI has sped up their workflows, how managing multiple AI agents is akin to raising toddlers, the necessity of using deterministic scripts for increased... Read more »PP111: New HPE Mist Features Validate NAC Changes, Enable Inline Microsegmentation (Sponsored)
HPE has announced new features in its Juniper Mist portfolio. On today’s sponsored Packet Protector, we dig into those features, including a dry run option that lets organizations test and refine Network Access Control (NAC) policies before pushing them out, a policy validation feature that can identify shadow NAC rules, and a microsegmentation capability aimed... Read more »HS133: Approaching Zero…Trust (Sponsored)
Most enterprises have some kind of zero trust strategy, but a lot of them could be better described as good intentions rather than active programs being implemented. Making good on a zero trust strategy and achieving an actual zero trust architecture requires tools that embody the core precept of zero trust thinking: deny access by... Read more »