OpenWRT - SQM QoS Setup on LuCI

In this video, we are talking about Traffic Shaping on OpenWRT, especially SQM and QoS. According to OpenWRT wiki, the OpenWrt SQM-QoS algorithms using cake or fq_codel have nearly eliminated bufferbloat.
SQM frequently performs better in all cases - upload and download - than arduous manual QoS settings described below. In this video, we will setup SQM QoS on OpenWRT and configure it according to your internet speed (throughput) and hardware setup. I tried to use Layman terms to explain them, hope it will help to explain the concept of Network Traffic Control and Smart Queue Management better.

No matter you are using LuCI or CLI, you just need to install this package: luci-app-sqm

Video timeframe:

00:00 - Introduction of SQM QoS on OpenWRT and the basic explanation
02:14 - Install package luci-app-sqm
03:14 - Access Smart Queue Management (SQM) GUI
03:33 - SQM: Basic Settings Tab - Interface, download and upload speed configuration)
04:24 - Measure the internet speed and calculate the download and upload rate for SQM
06:14 - Define the WAN interface for SQM
07:46 - SQM: Queue Discipline Tab - QoS script and Explicit Congestion Notification (ECN)
9:38 - SQM: Link Layer Adaptation Tab - Select the link layer and input the overhead
12:34 - Enable SQM instance and enable SQM startup (at boot)
13:04 - Further SQM QoS tunning

Resources:

[atmosquake]

Hey, just wanted to say that, despite these videos being somewhat old now, I really appreciate the walkthrough that you did, even showing speed tests on your end, even off of your phone. Being able to see that sort of stuff was very helpful. Thank you!

[Dorkie_Moxie]

You have no idea how happy I got as soon as you brought up the car analogy lol, thank you so much for makin

[wii]

You just earned yourself a lifetime sub thank you so much for these videos you have no idea how hard it is to find guides like this for the GUI instead of the CLI

[FalloutNewNarwhal]

Better explanation than any other video I've come across. Thanks!

[mohdzulhazmi]

Wow! Been waiting for this! Thanks Van!

[technicaldroid]

But after reboot it not work when we manually click start in startup then it work how to make it automatic.

[Embassfield.]

When I update lists I am met with this: The opkg update command failed with code 6. And even when I reboot and it lets me in, I can't install luci-app-sqm

[WassupFred]

Great Video... Very detailed and explained.. Cheers.

[champracer]

Thanks for video! Nice internet bandwidth you have!

[connorcampbell]

How do I get to that page at 2:00 I'm really frustrated at slow WIFI!

[alessandrom]

How can I prioritise a device after has been configured SQM QoS Luci on my Flint 2?

[ValzVlog]

sir the new version openwrt 19.7.7 sqm is not available

[king]

Hello. I have a guest wifi with guest interface which should I pick for the Interface Name dropdown in SQM QoS settings?

[pcpc-rc]

Can i set up this in asus old wifi 4 router and set up this speed for each ap ?

My main router is mikrotik, and for APs i use old one asus and tp link routers.

On my network i have simple que and mangle rules on mikrotik, but i want to limit speed for also each ap.


So when i have 40mbps internet i want to have in each room 20mbps with mangle rules, and when i start download some files i will have stable internet in the second room.

[auslander]

13:00 - you disabled sqm on startup; default is everything green is already enabled

[Hree]

Does SQM/QoS help with LAN latency between devices? Specifically I'm wondering how can I improve Steam Link Remote Play via WiFi on a home network

[chadwinters]

How can I have place a group of users on a given IP range and limit their download speed ? Is this possible on openwrt ?

[adibindrianto]

after reboot not work sqm openwrt 22.03, wlan0-1

[Vall_]

I want to delete pkg from the router cause i need a more storage is there any unnecessary pkg

[francocastilloAR]

You didn't use dslreports.com that the bufferbloat tells you.