This technical guide explains how SD-WAN simplifies WAN management by creating a logical overlay across multiple transport links such as MPLS, broadband, and wireless. It details key components including underlay connectivity, overlay VPNs, network policy orchestration, and integrated security. The eBook walks through traffic steering models—local breakout, VPN overlay, and backhaul—highlighting performance optimization and redundancy. It also outlines deployment steps using cloud orchestration and centralized management. Integrating security directly into SD-WAN ensures agility, cost efficiency, and consistent threat protection across distributed sites.

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