Solution

Secure SD-WAN

Fortinet’s software-defined WAN architecture combining application-aware path selection, routing and security.

Overview

Fortinet Secure SD-WAN runs on FortiGate/FortiOS and converges WAN routing, path steering and security.

Architecture

Build underlay connectivity first, then overlays, routing, SD-WAN zones, performance SLAs and rules. Larger designs may include regional hubs, ADVPN, BGP, FortiManager and digital experience monitoring.

Use Cases

Branch transformation, dual-ISP resiliency, application steering, SaaS optimization, regional overlays, ADVPN and SD-Branch.

CLI quick reference

Starting-point commands only. Confirm syntax against the target release and product before production use.

diagnose sys sdwan health-check
diagnose sys sdwan service
diagnose sys sdwan member
get router info bgp summary
get router info routing-table all
diagnose vpn tunnel list

Troubleshooting framework

Step	What to do
1. Symptoms	Write down exactly what is failing, affected scope, start time and last known-good state.
2. Health	Check CPU, memory, interfaces, HA/control-plane status and recent configuration changes.
3. Path	Validate L1/L2/L3, routing, policy, session state and dependencies in that order.
4. Logs	Correlate system/event/traffic logs with packet captures and targeted debugs.
5. Version	Check release notes, known issues, compatibility and lifecycle before assuming configuration error.

Version lens

Latest major: 8.0 where applicablePrevious major: 7.6

Not every Fortinet product follows the same release numbering or support matrix. Treat 8.0/7.6 as navigation lenses, not a blanket compatibility statement. Verify the specific model and management combination in official documentation.