Configuring SD-WAN for Branch Offices

SD-WAN (Software-Defined Wide Area Network) intelligently routes traffic across multiple WAN connections (MPLS, internet, LTE) based on application type, performance, and cost. It replaces traditional router-based WAN and simplifies branch office connectivity. Key benefits: application-aware routing (prioritize video conferencing over MPLS, route bulk data over cheaper internet links), automatic failover between WAN links, centralized management of all branch sites from a single dashboard, and improved performance for cloud applications like Microsoft 365. Popular SD-WAN solutions: Cisco Meraki MX (cloud-managed, simple UI), Fortinet Secure SD-WAN (integrated security), and Peplink (cost-effective for SMB). Deployment requires a physical or virtual SD-WAN appliance at each location. Plan the migration carefully — move non-critical sites first. Measure application performance before and after to demonstrate ROI.