Introduction and Overview › Glossary for Networking Terminology · 2 min read
Critical infrastructure includes all components of a system whose failure can significantly impair or completely disrupt the functionality of the entire network.
This encompasses not only technical systems but also people, organizations, knowledge, energy supply, communication, and logistics.
The term is often used only for power grids, data centers, or transportation routes.
For resilient networks, however, critical infrastructure includes all bottlenecks on which the entire system depends.
The decisive factor is therefore not what something is, but what consequences its failure would have.
Critical infrastructure can include, for example:
Every network should regularly ask:
The fewer alternatives exist, the more critical the infrastructure.
Resilient networks aim to gradually reduce critical dependencies.
Possible strategies include:
The goal is not to avoid every central function.
The goal is to prevent the failure of a single component from paralyzing the entire network.
In TEIKEI, analyzing critical infrastructure is part of network development.
Each region should examine: Where do dependencies arise—and how can they be reduced step by step?
A resilient network does not emerge by having no critical nodes.
It emerges by ensuring that no single node becomes indispensable.
Critical infrastructure describes all components of a network whose failure significantly impairs operational capacity. Resilient systems identify such bottlenecks early and design them so they can be replaced, distributed, or collectively managed.
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By the TEIKEI editorial team, with support from AI (ChatGPT)
Created on July 29, 2026 · Last updated on October 10, 2026
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