D01
Network Security Architecture & Engineering
About The Standard Domain
The Network Security Architecture and Engineering domain defines how networks are designed,segmented, protected, and operated to reduce risk and contain potential impact.
It governs secure connectivity, traffic control, network segmentation, boundary protection, and the foundational infrastructure required for visibiliy, reliability, and performance.
Secure Network Design
Segmentation & Isolation
Traffic Control & Filtering
Visibility & Monitoring
Resilence & Reliability
2
Associate Standard
Focused Guidance:
Apply One Technical Topic
The D01 Associate Standard provides focused technical guidance for one implementation topic within the domain.
Use it to apply practical requirements for Firewall Engineering and Rule Management.
D01-AS-NS-1020 Firewall Engineering & Rule Management
3
Evidence Workbook
Implementation & Proof
Use the D01 Evidence Workbook to organize, track, and prove implementation evidence across all sections of the D01 Network Security Architecture and Engineering Standard.
Structured Evidence Capture
Pre-built workbooks align with all Evidence Packs sections for consistent proof and documentation.
Implementation & Validation Tracking
Record requirements, specifications, control mappings, verifications results, and supporting artifacts.
Audit-Ready & Reusable
Mantain a complete, organized, Evidence Pack that is ready for internal reviews, audits and assurance activities.
Associate Standards Preview
Associate Standards Coming in Q3 2026
Detailed, implementation-level standards that support D01 will be published in Q3 2026 to help teams operationalize secure network architectures.
Download Access Note
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Why Adoption is Necessary
Architectural Clarity
Provides a shared blueprint for building secure, scalable, and maintainable network architectures.
Consistent Engineering Expectations
Aligns teams on proven patterns for segmentation, connectivity, and access control.
Measurable Verification
Defines testable outcomes and control mappings for continuous validation.
Stronger Evidence
Supports traceability and audit readiness with clear design intent and implementation evidence.
How The Standard Works
Requirements
Define the outcomes and capabilities network must achieve to be secure, resilent, and compliant.
Technical Specifications
Provide the architecture, controls, and design specifications to meet the requirements.
Verification and Validation
Define how to test, verify, and validate that network controls operate as intended.
Implementation Guidance
Offer practical guidance, patterns, and best practices, to implement the standard effectively.