Could someone help me to set up the SQM for full fibre 1Gbps connection FTTP.
WRT1900AC v2 with fresh latest software and sqm installed.
what I should to set in the l layer tab?
Should I change something in the sqm settings for the FTTP connection?
Your router is too slow for any SQM. Likely you need firewall offload to approach gigabit forwarding.
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You're regularly maxing out a 1 Gbps ISP connection using a WRT1900AC v2 as your router - currently?
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Extrapolating from my turris omnia with a similar CPU, I believe reliable SQM will likely top out at ~500 Mbps and that only if the CPUs are not otherwise taxed... nice SoC, but a bit long in the tooth and not designed for gigabit links... at least not with traffic shaping.
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Can you confirm or deny on turris?
Still running turrisOS on my omnia (bought it for the automatic updates, so never switched to upstream OpenWrt) but I can try software offload tomorrow (currently updating an ubuntu 22 host to 24 and I really do not want to see forwarding stopping tonight)...
880 Mbps at wrt1900ac v2 router.
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If my router is to slow, Which router you reckon for 1Gbps full fibre than?
Any filogic, especially with 2.5gbps ports will cover you.
https://openwrt.org/toh/views/toh_available_16128_ax-wifi
Is offload broken or 800Mbps is with offload?
x86_64, alderlake-n/ n100 plus an OpenWrt supported AP of your choice is also worth considering.
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alderlake n97 is also an option, depending on price and availability of n100.
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I ran a WRT32X for many years (similar to your WRT1900 but it's a bit faster) and it would do route about 700Mbps max (since SFO has long been broken on mvebu targets it's limited there) or about 500Mbps max with SQM cake.
Upgraded to GL-MT6000 last year, it'll route 2.5Gbps (HFO+SFO enabled) or about 900Mbps with SQM cake.
So if you're looking to route 1Gbps fiber get something like the GL-MT6000, it is popular and works great, and skip SQM and just use HFO+SFO so it's so much bandwidth it matters less.
If you really want SQM at full gig speed you need something even faster - Look at NanoPi R6S (edit: using official snapshot or the FriendlyWrt fork), or x86-64, an Intel N100 i226-V box and never think about performance again, albiet with higher power draw of x86.