Pages

Thursday, January 15, 2026

Introduction to Netris Network Automation and Abstraction Platform

If you have ever built or operated a real network, you already know the problem: networking is often the last part of the infrastructure that still relies on manual work, device-by-device configuration, and vendor-specific CLI syntax. While compute and storage moved towards automation and declarative management years ago, networking often lags behind. 

Here are two introductions videos ...


In this post, I want to briefly introduce Netris and explain why it is interesting from the perspective of modern, automation-driven environments.  

Tuesday, January 6, 2026

What is an FRR Router?

What Is a Free Range Routing (FRR) Router?

The term “FRR router” appears frequently in enterprise, datacenter, and ISP networking discussions. Despite how it sounds, it is not a product name and not a hardware device.

What Is Free Range Routing?

Free Range Routing (FRR) is an open-source routing software suite. The name Free Range reflects its original goal: routing software that is free, open, flexible, and not tied to proprietary hardware.

FRR provides implementations of major dynamic routing protocols and runs on general-purpose operating systems such as Linux and FreeBSD. 

Friday, December 26, 2025

A Simple Guide to SFPs, DAC Cables, CWDM, DWDM, and Network Speeds (1G to 400G)

When you hear terms like SFP, DAC, CWDM, or 100G, it can feel confusing at first. These technologies are common in data centers, ISPs, and modern enterprise networks.
This guide breaks them down in a simple, practical way that anyone can understand.

SFP, SFP+, SFP28, QSFP - What Are These?

These are small, pluggable modules that go into switches, routers, servers, and transmission devices. They allow network equipment to connect using fiber or copper.

Saturday, November 29, 2025

Project Stalwart - mail & collaboration server

Stalwart is an open-source mail & collaboration server with JMAP, IMAP4, POP3, SMTP, CalDAV, CardDAV and WebDAV support and a wide range of modern features.

https://stalw.art/ 

https://stalw.art/docs/install/platform/docker/ 

https://github.com/stalwartlabs/stalwart


Project Coriolis - V2V, P2V, V2C, P2C Tool

Coriolis is Cloud Migration as a Service.

Migrating existing workloads between clouds is a necessity for a large number of use cases, especially for user moving from traditional virtualization technologies like VMware vSphere or Microsoft System Center VMM to Azure / AzureStack, OpenStack, Amazon AWS or Google Cloud. Furthermore, cloud to cloud migrations, like AWS to Azure are also a common requirement.

You can find further information about the project Coriolis at GitHub - https://github.com/cloudbase/coriolis

Exos 4U74 and 4U100

I often build Software-Defined Storage systems, which require robust hardware with both high performance and large capacity. I have recently found that Seagate has ultra-dense SAS-4 JBOD systems combining next-gen Mozaic drive readiness with energy-efficient design for AI, edge, and sovereign data infrastructure. It supports up to 3.2PB in a single 4 RU enclosure.

Here are few pictures ...

Thursday, November 27, 2025

AI Servers and Racks

I’m trying to explain that an AI Factory truly functions like a factory, and that it is a fundamentally different discipline from a traditional datacenter.

A picture is worth a thousand words, just look at the photos below.