This guide outlines best practices for designing and deploying Fortinet Secure SD-WAN to improve connectivity, performance, and security across distributed enterprise environments. It highlights benefits such as cost reduction through intelligent traffic routing, improved application performance, and centralized management. The guide covers key design principles including underlay network diversity, overlay architecture using ADVPN and BGP, and deployment models such as hub-and-spoke, full mesh, and partial mesh. It also emphasizes integrated security features like NGFW, IPS, web filtering, and sandboxing. With a focus on scalability, resilience, and performance optimization, the guide enables organizations to modernize WAN infrastructure while maintaining strong security and operational e

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