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Public Videos: EVPN in MPLS-Based Environments

While we’re mostly discussing EVPN in conjunction with VXLAN encapsulation, its initial use case was as an alternate control plane for MPLS networks.

Krzysztof Szarkowicz had a great presentation describing the specifics of EVPN in MPLS-Based Environments a few years ago. Those videos (part of the EVPN Technical Deep Dive webinar) are now public; you can watch them without an ipSpace.net account.

Looking for more binge-watching materials? You’ll find them here.

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Notes on Network Signal Congestion Control

“The test of first-rate intelligence is the ability to hold two opposing ideas in mind at the same time and still retain the ability to function.” - F. Scott Fitzgerald

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Taalas Etches AI Models Onto Transistors To Rocket Boost Inference

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Taalas Etches AI Models Onto Transistors To Rocket Boost Inference

Adding big blocks of SRAM to collections of AI tensor engines, or better still, a waferscale collection of such engines, turbocharges AI inference, as has been shown time and again by AI upstarts Cerebras Systems, SambaNova Systems (which Intel is rumored to have taken a run at late last year), Groq (just eaten by Nvidia for $20 billion), and Graphcore (eaten by SoftBank for $600 million a year and a half ago) as they compare against GPUs from Nvidia and AMD. …

Taalas Etches AI Models Onto Transistors To Rocket Boost Inference was written by Timothy Prickett Morgan at The Next Platform.

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N4N049: Understanding Firewalls

Today, Ethan and Holly provide an overview of firewalls. While cybersecurity is a separate discipline from network engineering, much of what happens in cybersecurity is interesting at the packet level, so there’s a good deal of overlap. It’s likely that as a network engineer, you’ll be managing, or at least dealing with, firewalls in your... Read more »

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IPB194: Navel Gazing at NAT in IPv6

Ed, Nick, and Tom discuss the need for Network Address Translation v6 to v6 (NAT66). While Network Prefix Translation (NPTv6) exists, its limitations make it insufficient for real-world business needs. They also highlight that without a standardized NAT66, the market is forcing vendors to implement their own, hindering widespread IPv6 adoption. Episode Links: IPv6-to-IPv6 Network... Read more »

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Cisco IOS/XR OSPFv2 Not-So-Passive Interfaces

What’s wrong with me? Why do I have to uncover another weirdness every single time I run netlab integration tests on a new platform? Today, it’s Cisco IOS/XR (release 25.2.1) and its understanding of what “passive” means. According to the corresponding documentation, the passive interface configuration command is exactly what I understood it to be:

Use the passive command in appropriate mode to suppress the sending of OSPF protocol operation on an interface.

However, when I ran the OSPFv2 passive interface integration test with an IOS/XR container, it kept failing with neighbor is in Init state (the first and only time I ever encountered such an error after testing over two dozen platforms).

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Introducing NFA v26.01 – Advanced Threshold Monitoring, Performance Optimizations, Enhanced User Management, and more.

The post Introducing NFA v26.01 – Advanced Threshold Monitoring, Performance Optimizations, Enhanced User Management, and more. appeared first on Noction.

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Some Game Theory On That Nvidia-Meta Platforms Partnership

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Some Game Theory On That Nvidia-Meta Platforms Partnership

When Meta Platforms does a big AI system deal with Nvidia, that usually means that some other open hardware plan that the company had can’t meet an urgent need for compute. …

Some Game Theory On That Nvidia-Meta Platforms Partnership was written by Timothy Prickett Morgan at The Next Platform.

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D2DO294: AI in My Vuln Research Workflow

Kat Traxler, Principal Security Researcher at Vectra AI, returns to the podcast to discuss her AI-powered vulnerability research workflow. She explains how she uses two different AI models to act as the “blackboard” while she applies her expertise to triage AI-generated ideas to increase her productivity. She also asks a concerning question: As AI automates... Read more »

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Introducing NETWORKGEEKTOOLS.COM

Whether you’re a network engineer troubleshooting a routing issue at 2 AM, a sysadmin verifying DNS propagation after a migration, or a developer checking why your API endpoint isn’t reachable … Read More

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EVPN IP-VRFs on Cisco IOS/XE: Configuration Notes

Last week, I described some of the gotchas I encountered while trying to make EVPN MAC-VRFs work on Cisco IOS/XE. In the meantime, I got IP-VRFs with transit VXLAN segments working. Here are the CliffsNotes:

Starting with the disgusting configuration mechanism:

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Project Calico 3.30+ Hackathon: Show Us What You Can Build!

We’re excited to officially invite you to the Project Calico 3.30+ Community Hackathon.

Whether you’re a seasoned eBPF expert or a newcomer to the Gateway API, we welcome your innovation and  your ideas!

What’s in the Toolkit?

We’ve packed Calico 3.30+ with powerful features ready for you to hack on:

• Goldmane & Whisker: High-performance flow insights meets a sleek, operator-friendly UI.
• Staged Policies: The “Safety First” way to test Zero Trust before enforcing it.
• Calico Ingress Gateway: Modern, Envoy-powered traffic management via the Gateway API.
• Calico Cloud Ready: Connect open-source clusters to a free-forever, read-only tier for instant visualization and troubleshooting.
• IPAM for Load Balancers: Consistent IP strategies for MetalLB and beyond.
• Advanced QoS: Fine-grained bandwidth and packet rate controls.

Inspiration: What Can You Build?

Whether you’re a networking guru or an automation Continue reading

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AI Eats The World, And Most Of Its Flash Storage

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AI Eats The World, And Most Of Its Flash Storage

If you want to be in the DRAM and flash memory markets, you had better enjoy rollercoasters. …

AI Eats The World, And Most Of Its Flash Storage was written by Timothy Prickett Morgan at The Next Platform.

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HW071: New iOS Tools for WLAN Pi

Adrian Granados joins Keith Parsons to discuss new iOS tools available for the WLAN Pi.  These new tools extend a professional’s ability to run Wi-Fi scanning and analysis apps such a Wi-Fi Explorer Pi and Airtool Pi on iOS devices such as iPhones and iPads. Along with the small, portable WLAN Pi itself, these apps... Read more »

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PP097: How and Why to Turn the Browser into a Universal Security Agent (Sponsored)

With the rise of cloud services and SaaS, the browser has become a primary productivity tool. It’s also a primary vector for malware, phishing, identity theft, data leaks, and other risks. On today’s sponsored episode with Palo Alto Networks, we dive into browser security. We discuss risks to the browser and how they differ from... Read more »

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Tech Bytes: We Need More Network Engineers; Here’s Ideas to Make It Happen (Sponsored)

Where are all the network engineers? OK, obviously, there are network engineers out there, like the thousands of you listening to this podcast. But there’s an impression that the current generation is aging out of the profession while fewer young people are taking on network engineering as a career. At the same time, networks are... Read more »

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NB562: Cisco Challenges Broadcom With 102.4Tb ASIC; Arista Reaches Record Revenues

Take a Network Break! We start with listener follow-up on data centers in space, and sound the Red Alert about a sandbox failure in Claude Code and a rash of Microsoft zero-days. On the news front, Cisco announces a 102.4Tbps switch ASIC in its Silicon One line of homegrown chips, and adds AI agent monitoring... Read more »