Download → Build → Break → Repeat.
If you’re studying for CCIE or testing complex SD-WAN, you’re wasting time without it. eve-ng
🔗 [Link to eve-ng.net]
EVE-NG runs as a bare-metal hypervisor (or on top of VMware/Proxmox) and lets you drag-and-drop real network device images. Download → Build → Break → Repeat