Networking
Core, Distribution & Access Switches Explained
Understand the role of core, distribution and access layers in enterprise and campus networks.
Why this matters
Good infrastructure decisions begin with a clear understanding of requirements, dependencies, security and lifecycle needs.
1. Assess the current environment
Document topology, addressing, connectivity, hardware, dependencies, security controls and operational processes.
2. Define requirements and priorities
Consider availability, performance, security, capacity, manageability, future growth and operational support.
3. Design for security and resilience
Use appropriate segmentation, access controls, redundancy and monitoring.
4. Implement with documentation
Plan changes, test critical paths, document configurations and maintain an accurate as-built record.
5. Review and optimize
Review infrastructure periodically for capacity, configuration quality, lifecycle status and changing business requirements.
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