Designing For Cisco Network Service Architectur... File

: Traditional perimeters have been replaced by Identity-Based Access Control , where security policies follow the user or device regardless of location.

: Breaking the network into smaller, functional modules (e.g., Campus, Data Center, WAN) to limit failure domains and simplify upgrades. Designing for Cisco Network Service Architectur...

Cisco utilizes two primary frameworks to guide network design: the traditional hierarchical model for physical structure and the for service integration. : Connects end-user devices (workstations, printers, IoT) to

: Contains business and collaborative applications that leverage the services below. 2. Key Design Principles 1. Core Architectural Frameworks

: Ensuring high availability through redundant links, Stateful Switchover (SSO) , and Non-stop Forwarding (NSF) .

: Connects end-user devices (workstations, printers, IoT) to the network.

Designing for focuses on creating modular, resilient, and intelligent network systems that align with modern business outcomes. By 2026, the architecture has evolved from basic connectivity to an AI-ready framework that integrates security, automation, and observability directly into the network fabric. 1. Core Architectural Frameworks