Knowledge

Articles & Insights

Practical knowledge on network architecture, OT security and compliance.
By Jens Thies, IT by PASSION.

Obstacles in 2026: Where Global Solution Architecture Projects Get Stuck

Network Architectures Compared: 3-Tier, Collapsed Core, Spine-Leaf and OpenZiti Overlay

Stakeholder management in M&A: the network architect caught between IT, OT and the deal team

RFC 8950 in Practice: IPv4 Prefixes with an IPv6 Next Hop

Prompt Injection: Attack Methods and Mitigation from a Solution Architecture Perspective

Risk Analysis in Production Networks: Deciding with Incomplete Information and a Tight Budget

OT Site Survey in Practice: Systematically Mapping Production Networks

Automation, AI and Digitalisation: What Is Really Changing in the Architecture of Enterprise Solutions

AI's last mile: why pilot projects fail at integration and how to secure them

IPv6 Migration: The Underestimated Bottleneck in Cloud Transformation

Siemens SINEC Secure Connect vs. NetFoundry OpenZiti: What's really under the bonnet?

Resilience Instead of Availability: What Executives Need to Know About Modern Networks

Segmenting production networks according to the Purdue model: zones, conduits and common mistakes

Packet Loss Reported: Systematically Narrowing Down the Causes

NIS2 in Production Networks: What Needs to Be Done Now

Why network architecture is a business decision, not just an IT decision

Securing IT/OT convergence without stopping production