I'm not advertising for Aliexpress, but living in Brazil, it is one of the few websites where we can import foreign products. I would like recommendations for routers with WiFi 6 (ax) that can be purchased there. I've researched some models available on this page (https://openwrt.org/toh/views/toh_available_16128_ax-wifi), but I couldn't find any of them for sale. Among the models I searched were: ASUS (TUF-AX4200 and TUF-AX6000), Dynalink (WRX36), NETGEAR (WAX218, 220, and RAX120).
If you have any other recommendations for routers that are compatible with OpenWRT, I would be grateful.
It's important that the router supports at least 1 Gbps with SQM enabled because I would like to go for about 3-4 years without needing to buy another device.
Well, you can always opt for not buying internet access capacity outside of the reach of your router, or if e.g. 1Gbps is your ISPs 'lowest' capacity, just use sqm to shape it down to whatever your rputer can handle with sqm.
Generally AQMs help whenever a link is used fully, that is if the capacity is saturated. If you do not saturate a link or if the link's 'natural' saturated delay under load increase is low enough for your taste, then SQM is superfluous. Note how the actual numeric access capacity does not matter here (outside of a somewhat diminished likelihood to saturate higher capacity links compared to lower capacity links). It is however a policy decision for each network admin whether or whether not sqm should be used on a given link, with no right or wrong choice.
Well, 1000/20 is a clear sign of ISP incompetence or not caring for its users... reverse TCP ACK traffic often ends up as high as 1/40 in volume of the forward data traffic, at 1000 download this results in 25 Mbps upload, which will not fit so TCP downloads will not reach 1000 either... (more modern TCPs tend to have a lower ACK traffic ratio, but 1/40 holds for the reference TCP Reno).
Regarding SQM I would even recommend to test it on any link capacity, if it improves responsiveness keep it if it makes no difference, drop it (just make sure to actually use representative loads while evaluating sqm)
Back on topic I believe the only recomandation for an aliexpress router with 1gbps sqm performance would be a n5100 or n100 Intel dual or quad port appliance but unfortunately this doesn't qualify as it lacks proper wifi6 (although are advertised to support it the performance will be subpar to most well established brands APs)
I have some GL-iNet routers for several years now.
I've always been very satisfied.
GL-iNet is based on Openwrt.
With an original GL-iNet interface that lets you access Luci and the command line via SSH.
But, if needed it can be flashed by Openwrt to remove the GL-iNet interface.
It was available on AliExpress (from Belgium)
I don't use SQM and I don't know how it works.
But as I understand it, you "just" have to install the luci-app-sqm package via LUCI.
As LUCI is accessible via System > Advanced settings on GL-iNet router…
But I don't use it, so I have no experience of SQM.
This is not applicable to all models, some of their models using SoC like SiFlower are not supported by official OpenWrt. And GL's firmware is also heavily customized and might include non upstream patches that makes the porting to official OpenWrt difficult.
(just make sure to actually use representative loads while evaluating sqm)