Network Segmentation
Definition
Network segmentation separates areas and controls the connections between them.
The division of a network into separate zones with controlled communication paths.
Simply explained
Like separate rooms, network segments have only certain allowed connection doors.
Why it matters in practice
Helps develop and operate digital systems robustly, securely, and maintainably.
Example from business
Production database, office devices, and external services are located in separate segments with minimal sharing.
Limits and pitfalls
- Only naming segmentation logically, setting rules too broadly, or not monitoring East-West traffic.
Origin & history
Segmentation is a long-established security principle and part of modern Zero Trust architectures.
Use in mid-sized companies
- Possible application: Production database, office devices, and external services are located in separate segments with minimal sharing.
Frequently asked questions
What does network segmentation mean?
The division of a network into separate zones with controlled communication paths.
Which mistakes should be avoided?
Only naming segmentation logically, setting rules too broadly, or not monitoring East-West traffic.
Sources
Source verified on 10.10.2026. Editorial application examples are hypothetical; no proof of real customer results.
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