Cisco SD-WAN Full LAB Documentation – Configure From Scratch

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• Create Date January 10, 2025
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What is SD-WAN? SD-WAN (Software-Defined Wide Area Networking) is a technology that enables organizations to manage and optimize their wide area networks (WANs) using software-defined networking (SDN) principles.

Key Benefits

1. Improved Network Visibility: SD-WAN provides real-time visibility into network performance and application usage.
2. Increased Agility: SD-WAN enables rapid deployment and provisioning of network services.
3. Enhanced Security: SD-WAN integrates security features, such as firewalls and intrusion detection, into the network.
4. Better Application Performance: SD-WAN optimizes application performance using techniques like traffic shaping and Quality of Service (QoS).
5. Reduced Costs: SD-WAN can reduce WAN costs by leveraging lower-cost internet connections and optimizing network traffic.

How SD-WAN Works

1. Edge Devices: SD-WAN edge devices are installed at branch locations and connect to the WAN.
2. Orchestration: The SD-WAN orchestration platform manages the edge devices and configures network policies.
3. Traffic Steering: The SD-WAN solution steers traffic across the WAN based on application requirements and network conditions.

Common SD-WAN Use Cases

1. Branch Office Connectivity: SD-WAN enables secure and reliable connectivity for branch offices.
2. Cloud Connectivity: SD-WAN optimizes connectivity to cloud applications and services.
3. MPLS Replacement: SD-WAN can replace traditional MPLS networks with lower-cost internet connections.