Is Cisco Live Still The Place To Be
You may recall from my post about Cisco Live last year that I talked about legacy and passing the torch to a new generation of people being active at the event. It was a moment where I was happy for what was occurring and thrilled to see the continuation of the community. It’s now a year later and I have a very different outlook on Cisco Live that isn’t nearly as rosy. Which is why I asked the question in the post title.
Destination Unknown
If you are a Cisco customer or partner that wants the latest news about Cisco products and services then Cisco Live is the place you need to be to get them. Sure, you can watch the keynotes virtually and read all the press releases online. However, if you really want to get up close and personal with the technology you have to be there. After all, it was this need to be in-person that inspired our community in the first place. We showed up. We met up. And we made the event even better because we were there.
That was then. 2025 is a different story. The first hints about the situation came when I Continue reading
Securing Kubernetes Traffic with Calico Ingress Gateway
If you’ve managed traffic in Kubernetes, you’ve likely navigated the world of Ingress controllers. For years, Ingress has been the standard way of getting our HTTP/S services exposed. But let’s be honest, it often felt like a compromise. We wrestled with controller-specific annotations to unlock critical features, blurred the lines between infrastructure and application concerns, and sometimes wished for richer protocol support or a more standardized approach. This “pile of vendor annotations,” while functional, highlighted the limitations of a standard that struggled to keep pace with the complex demands of modern, multi-team environments and even led to security vulnerabilities.
Wait a second, is this the ‘Ingress vs. Gateway API’ debate?
Yes, and it’s a crucial one. The Kubernetes Gateway API isn’t just an Ingress v2; it’s a fundamental redesign, the “future” of Kubernetes ingress, built by the community to address these very challenges head-on.
What makes Gateway API different?
There are three main points that I came across while evaluating GatewayAPI and Ingress controllers:
- Standardization & Portability: It aims to provide a core, standard way to manage ingress, reducing reliance on vendor-specific hacks and making it easier to switch implementations – change the class, and it should “just work.”
- Continue reading
Picking Apart AMD’s AI Accelerator Forecasts For Fun And Budgets
Given two endpoints and a compound annual growth rate between those two points over a specific amount of time is not as useful as it seems. …
Picking Apart AMD’s AI Accelerator Forecasts For Fun And Budgets was written by Timothy Prickett Morgan at The Next Platform.
HS106: Planning for the Epochalypse
IT teams deal with technology lifecycle issues all the time–including Y2K, which enterprises across the world grappled with for years. The Epochalypse, or Year 2038 Problem, is similar. Specifically, some Linux systems’ date-time counters will go from positive to negative at a specific date in 2038, potentially wreaking havoc on embedded systems and any other... Read more »
Public Videos: Whole IPv6 Curriculum
Based on the feedback I received on LinkedIn and in private messages, I made all my IPv6 content public; you can watch those videos without an ipSpace.net account.
Want to spend more time watching free ipSpace.net videos? The complete list is here.
NB531: Cisco Spotlights AI, Unified Management at CLUS; Ultra Ethernet 1.0 Unveiled
Take a Network Break! Our Red Alert for the week is a remote code execution vulnerability in open-source XDR platform Wazuh. In tech news, we dig into several announcements from Cisco Live US including: unified management of Meraki and Catalyst gear, new switches, an AI Assistant for the Meraki dashboard, a Deep Network Model LLM,... Read more »Sandia Deploys SpiNNaker2 Neuromorphic System
Some heavy hitters like Intel, IBM, and Google along with a growing number of smaller startups for the past couple of decades have been pushing the development of neuromorphic computing, hardware that looks to mimic the structure and function of the human brain. …
Sandia Deploys SpiNNaker2 Neuromorphic System was written by Jeffrey Burt at The Next Platform.
netlab 25.06: Fixing Nokia SR-OS Configuration Templates
TL&DR: netlab release 25.06 was published last week.
Before discussing the new features, let’s walk the elephant out of the room: I changed the release versions to YY.MM scheme, so I will never again have to waste my time on the existential question of which number in the release specification to increase.
Now for the new features:
A QUIC Progress Report
There has been a major change in the landscape of the internet over the past few years with the progressive introduction of the QUIC transport protocol. Here I’d like to look at where we are up to with the deployment of QUIC on the public Internet. In so doing we also need to consider whether the DNS is ossifying in front of our eyes!QO100 early success
I have heard and been heard via QO-100! As a licensed radio amateur have sent signals via satellite as far away as Brazil.
What it is
QO-100 is the first geostationary satellite with an amateur radio payload. A “repeater”, if you will. Geostationary means that you just aim your antenna (dish) once, and you can use it forever.
This is amazing for tweaking and experimenting. Other amateur radio satellites are only visible in the sky for minutes at a time, and you have to chase them across the sky to make a contact before it’s gone.
They also fly lower, meaning they can only see a small part of the world at a time. QO-100 can at all times see and be seen by all of Africa, Europe, India, and parts of Brazil.
Needs a bit more equipment, though
Other “birds” (satellites) can be accessed using a normal handheld FM radio and something like an arrow antenna. Well, you should actually have two radios, so that you can hear yourself on the downlink while transmitting.
There are also linear amateur radio satellites. For them you need SSB radios, which narrows down which radios you can use. And you still need Continue reading
AI network performance monitoring using containerlab
The screen capture is from a containerlab topology that emulates a AI compute cluster connected by a leaf and spine network. The metrics include:
- Total Traffic Total traffic entering fabric
- Operations Total RoCEv2 operations broken out by type
- Core Link Traffic Histogram of load on fabric links
- Edge Link Traffic Histogram of load on access ports
- RDMA Operations Total RDMA operations
- RDMA Bytes Average RDMA operation size
- Credits Average number of credits in RoCEv2 acknowledgements
- Period Detected period of compute / exchange activity on fabric (in this case just over 0.5 seconds)
- Congestion Total ECN / CNP congestion messages
- Errors Total ingress / egress errors
- Discards Total ingress / egress discards
- Drop Reasons Packet drop reasons
Note: Clicking on peaks in the charts shows values at that time.
This article gives step-by-step instructions to run the demonstration.
git clone https://github.com/sflow-rt/containerlab.gitDownload the sflow-rt/containerlab project from GitHub.
git clone https://github.com/sflow-rt/containerlab.git cd containerlab ./run-clabRun the above commands Continue reading
Laser-Based Compute Promises To Light The Way To Faster Physics Sims
While the world continues to fixate on AI, there are still plenty of high performance computing workloads that need doing and a speedup to any one part can have a big impact, whether it be computational fluid dynamics, material analysis, or something else. …
Laser-Based Compute Promises To Light The Way To Faster Physics Sims was written by Tobias Mann at The Next Platform.
Hedge 271: AI and Creativity
AI chatbots and image creators are all the rage right now–we are using them for everything from coding to writing books to creating short movies. One question we do not ask often enough, though, is how this impact human creators. How will these tools shape creativity and thinking skills?
HN785: How To Take Your First Steps Into Network Automation
There’s an old saying that a journey of a thousand miles begins with the first step. On today’s show, we talk about taking your first step into network automation with guest Joseph Nicholson. He’s been automating at NTT Data for many years now and has some perspective to share. He’s a network engineer by trade,... Read more »Finding Source Routing Paths
In the previous blog post, we discussed the generic steps that network devices (or a centralized controller) must take to discover paths across a network. Today, we’ll see how these principles are applied in source routing, one of the three main ways to move packets across a network.
Brief recap: In source routing, the sender has to specify the (loose or strict) path a packet should take across the network. The sender thus needs a mechanism to determine that path, and as always, there are numerous solutions to this challenge. We’ll explore a few of them, using the sample topology shown in the following diagram.
Cloudflare service outage June 12, 2025
On June 12, 2025, Cloudflare suffered a significant service outage that affected a large set of our critical services, including Workers KV, WARP, Access, Gateway, Images, Stream, Workers AI, Turnstile and Challenges, AutoRAG, Zaraz, and parts of the Cloudflare Dashboard.
This outage lasted 2 hours and 28 minutes, and globally impacted all Cloudflare customers using the affected services. The cause of this outage was due to a failure in the underlying storage infrastructure used by our Workers KV service, which is a critical dependency for many Cloudflare products and relied upon for configuration, authentication and asset delivery across the affected services. Part of this infrastructure is backed by a third-party cloud provider, which experienced an outage today and directly impacted availability of our KV service.
We’re deeply sorry for this outage: this was a failure on our part, and while the proximate cause (or trigger) for this outage was a third-party vendor failure, we are ultimately responsible for our chosen dependencies and how we choose to architect around them.
This was not the result of an attack or other security event. No data was lost as a result of this incident. Cloudflare Magic Transit and Magic WAN, DNS, cache, proxy, Continue reading
IPB177: Introducing the IPv6 Compatibility Checker
The Hexabuild team is providing a new community resource, an IPv6 compatibility checker, for those trying to figure out IPv6 network hardware and software compatibility. It’s currently in an alpha version. We talk about what inspired it, what it does, and possible future updates. We also want to get your feedback on whether this is... Read more »AMD Plots Interception Course With Nvidia GPU And System Roadmaps
To a certain extent, Nvidia and AMD are not really selling GPU compute capacity as much as they are reselling just enough HBM memory capacity and bandwidth to barely balance out the HBM memory they can get their hands on, thereby justifying the ever-embiggening amount of compute their GPU complexes get overstuffed with. …
AMD Plots Interception Course With Nvidia GPU And System Roadmaps was written by Timothy Prickett Morgan at The Next Platform.