Whenever I was explaining how one could build EBGP-only data center fabrics, someone would inevitably ask, “But could you do that with IBGP?”
TL&DR: Of course, but that does not mean you should.
Anyway, leaving behind the land of sane designs, let’s trot down the rabbit trail of IBGP-only networks.
One of the goals we’re always trying to achieve when developing netlab features is to make the lab topologies as concise as possible1. Among other things, netlab supports numerous ways of describing links between lab devices, allowing you to be as succinct as possible.
A bit of a background first:
The United States ban on TikTok went into effect on January 19, 2025, and our data showed a clear impact starting after 03:30 UTC (10:30 PM ET on January 18, 2025). The ban was part of the "Protecting Americans from Foreign Adversary Controlled Applications Act," proposed in Congress, which ordered ByteDance to divest due to alleged security concerns. The bill was signed into law by Congress and President Biden in April 2024, and was upheld by the Supreme Court.
Aggregated data from our 1.1.1.1 DNS resolver shows — as we’ve posted on X — that the TikTok shutdown in the US began to impact DNS traffic to TikTok-related domains on January 19, just after 03:30 UTC (22:30 ET on January 18). This includes DNS traffic not only for TikTok, but also for other ByteDance-owned platforms, such as the CapCut video editor. Traffic dropped by as much as 85% compared to the previous week and showed signs of further decline in the following hours.
Around that time, a message indicating the TikTok ban began appearing for US users.
Analyzing data from autonomous systems or networks, traffic from TikTok owner ByteDance’s network (AS396986) in the US Continue reading
Hello my friend,
This blog post is probably the first one, where we start doing more practical rather than foundational things in Python and Go (Golang). Up till now we were going through all possible data types as well as small steps how to deal with files. Today we’ll bring that all together and boost it with practical scenario of parsing data following the most popular data serialization techniques these days
For quite a while I’m trying to hire a good network automation engineer, who shall be capable to write applications in Python, which shall manage networking. The pay is good, so my understanding would be that the candidates’ level shall be good as well. My understanding is sadly far from reality as general skills in software development is poor. I was thinking multiple times, if people who passed my trainings would apply, they could have smashed it (provided they practice). Which means there are a lot of jobs out there, requiring good level of automation and software development skills. But they stay unfulfilled because there are no good candidates. It could be yours.
Boost yourself up!
We offer the following training programs Continue reading
I have a bit of a problem with this setup serving phpIPAM via Nginx reverse proxy, so I said to share the solution which works for me here maybe will help somebody out there. I installed phpIPAM as Docker container following the instructions here: https://github.com/phpipam-docker/phpipam-docker. Using it via plain http was working OK, but I […]
<p>The post phpIPAM in Docker with Nginx reverse-proxy first appeared on IPNET.</p>
In my previous InfraHub introductory post, we covered installation and the basics of InfraHub. In this second post, let’s explore the ‘Schema Library’ provided by OpsMill, the team behind InfraHub. As mentioned in the previous post, InfraHub doesn’t include any user-defined schemas out of the box, so we need to create our own. However, the Schema Library repository offers a collection of schemas that we can easily import into InfraHub. In this post, we’ll take a closer look at the Schema Library and how to use it.
If you are new to Infrahub and want to learn the basics of what it is and how to install it, feel free to check out my introductory post below.
Suresh Vina
The way I think about schema is that it is a blueprint that defines the structure of your data. It specifies the nodes (like devices and interfaces), their attributes, and the relationships between them. This allows you to customize how you Continue reading
One of the various attack surfaces in encryption is insuring the certificates used to share the initial set of private keys are not somehow replaced by an attacker. In systems where a single server or source is used to get the initial certificates, however, it is fairly easy for an attacker to hijack the certificate distribution process.
Henry Birge-Lee joins us on this episode of the Hedge to talk about extensions to existing certificate systems where a certificate is pulled from more than one source. You can find his article here.
The initial videos of the Leaf-and-Spine Fabric Architectures webinar are now public. You can watch the Leaf-and-Spine Fabric Basics, Physical Fabric Design, and Layer-3 Fabrics sections without an ipSpace.net account.
It is not hard to figure out who is in the catbird seat in the semiconductor foundry business. …
TSMC Can’t Be Caught Or Bought, Only Sought Or Stolen was written by Timothy Prickett Morgan at The Next Platform.
AI agents are the latest evolution in the relatively short life span of generative AI, and while some organizations are still trying to figure out how the emerging technology fits in their operations, others are making strides into agentic AI. …
Using NIM Guardrails To Keep Agentic AI From Jumping To Wrong Conclusions was written by Jeffrey Burt at The Next Platform.
COMMISSIONED: As with any emerging technology, implementing generative AI large language models (LLMs) isn’t easy and it’s totally fair to look side-eyed at anyone who suggests otherwise. …
Can Synthetic Data Help Us Scale AI’s Data Wall? was written by Timothy Prickett Morgan at The Next Platform.
One of the recipes for easy IS-IS deployments claims that you should use only level-2 routing (although most vendors enable level-1 and level-2 routing by default).
What does that mean, and why does it matter? You’ll find the answers in the Optimize Simple IS-IS Deployments lab exercise.
As Kubernetes becomes the backbone of modern cloud native applications, organizations increasingly seek to consolidate workloads and resources by running multiple tenants within the same Kubernetes infrastructure. These tenants could be:
While multitenancy offers cost efficiency and centralized management, it also introduces security and operational challenges:
To address these concerns, practitioners have three primary options for deploying multiple tenants securely on Kubernetes.
Namespaces are Kubernetes’ built-in mechanism for logical isolation. This approach uses:
Advantages:
Broadcom’s $61 billion acquisition of VMware in November 2023 and the subsequent changes to venerable virtualization company’s business model and pricing have rankled many long-time enterprise users, a situation that has been highly publicized despite assertions by Broadcom and VMware executives that such reports are little than FUD – short for fear, uncertainty, and doubt. …
Red Hat Woos VMware Shops With OpenShift Virtualization Engine was written by Jeffrey Burt at The Next Platform.