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automation:topics:network_redundancy [2025/12/09 16:43] – created vamsanautomation:topics:network_redundancy [2025/12/09 16:44] (current) – vamsan
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 == Network redundancy == == Network redundancy ==
  
-Network redundancy refers to how our technological system behaves when a unit fails or a wire breaks. How fault-tolerant should the system be? Redundancy can be classified in various ways, and one of the easiest methods to evaluate this is by dividing system solutions into four levels.+Network redundancy refers to how our technological system behaves when a unit fails or a wire breaks. How fault-tolerant should the system be? Redundancy can be classified in various ways, and one of the easiest methods to evaluate it is to divide system solutions into four levels.
  
-  * S1: No redundancy management. If it fails, the system fails, such as in the case of a wire break. +  * **S1**: No redundancy management. If it fails, the system fails, such as in the case of a wire break. 
-  * S2: Media redundancy; if a wire breaks, the secured subsystems stay operational. If a sub-unit fails, replacing it may not be possible at this level. +  * **S2**: Media redundancy; if a wire breaks, the secured subsystems stay operational. If a sub-unit fails, replacing it may not be possible at this level. 
-  * R1: Media and unit redundancy; the secured network components stay operational during a wire break, and there's a possibility of continued operation even if sub-units fail. +  * **R1**: Media and unit redundancy; the secured network components stay operational during a wire break, and there's a possibility of continued operation even if sub-units fail. 
-  * R2: Maximum level of redundancy.+  * **R2**: Maximum level of redundancy.