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galvesribeiro / EFG-Broken.md
Last active June 12, 2026 21:51
Why Your Ubiquiti EFG Can't Push 25 Gbps Inter-VLAN — and What's Actually Going On

Why Your Ubiquiti EFG Can't Push 25 Gbps Inter-VLAN — and What's Actually Going On

Or: How I Reproduced the Problem on x86, Tried to Load the Missing Modules on the Real Device, and What That Tells Us About Ubiquiti's Kernel


TL;DR

Ubiquiti markets the Enterprise Fortress Gateway (EFG) as a 25-gigabit-class router. The product page lists two 25 GbE SFP28 ports for WAN/LAN, and Ubiquiti positions the device as a flagship for medium and large enterprise deployments. Its silicon — a Marvell Octeon CN9670 — supports hardware-accelerated forwarding through purpose-built network engines (NIX) that should sustain tens of millions of packets per second. The UDM Beast, Ubiquiti's next-generation gateway, pairs a Marvell Octeon CN10K SoC (with ARM Neoverse N2 cores) with a dedicated Marvell Prestera-class switching ASIC accessed via PCIe — capabilities that, properly used, would offload most of the per-packet forwarding work into hardware.