SC-31(2)—Maximum Bandwidth
>Control Description
Reduce the maximum bandwidth for identified covert ☑storage; timing channels to ⚙organization-defined values.
>Supplemental Guidance
The complete elimination of covert channels, especially covert timing channels, is usually not possible without significant performance impacts.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What policies govern the implementation of maximum bandwidth?
- •How are system and communications protection requirements defined and maintained?
- •Who is responsible for configuring and maintaining the security controls specified in SC-31(2)?
Technical Implementation:
- •How is maximum bandwidth technically implemented in your environment?
- •What systems, tools, or configurations enforce this protection requirement?
- •How do you ensure that maximum bandwidth remains effective as the system evolves?
Evidence & Documentation:
- •What documentation demonstrates the implementation of SC-31(2)?
- •Can you provide configuration evidence or system diagrams showing this protection control?
- •What logs or monitoring data verify that this control is functioning correctly?
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