Scaling to low-subscriber counts

[richb-hanover]

I'm the IT administrator at a small hospitality business. We have 20 rustic cabins and a restaurant all served by Ubiquiti Unifi gear, with OpenWrt as firewall and connection to our 150mbps fiber optic ISP. Our guests are perfectly happy with the network connection (they're on vacation, after all).

But I have been following the LibreQoS project for a while, and applaud the efforts. I got to wondering - how low can you go? That is, how little hardware would you need to handle a small-ish installation.

I've seen the Seeed Studio mini router that's a Raspberry Pi 4 Compute module strapped to a dual-Ethernet addon board. It's rumored to be able to pass around a gigabit/sec. If so, it seems likely that it could handle my application nicely.

It would be interesting to know how much work it would be to get LibreQoS running, and what its performance characteristics might be. Thanks!

[dtaht]

I have been trying to get down to the the RB5009, but NOT that low.

The pi is pretty good tho!

[rchac]

Great question. For small networks this is important.

From what i understand, the only real limitation since we added XDP as more integral part of the project is that a LibreQoS device needs:

• 2 CPU Cores or more (xdp-cpumap-tc setup script assumes at least two cores)
• Hyperthreading off
• 3 total network ports

Even if a NIC doesn't support XDP natively, Generic XDP should kick in and provide reasonable performance.

I'd be eager to see what a Pi can do! I think the Seeed Studio Mini Router seems like a great fit.