Sqm settings on DSA linksys e8450 aka belkin rt3200

hello everyone I would like to set up sqm on wifi

So in the first instance I put on wan

config queue 'eth1'
qdisc option 'cake'
script option 'piece_of_cake.qos'
option enabled '1'
'wan' interface option
download option '56000'
upload option '16000'
debug_logging option '0'
verbosity option '5'
linklayer option 'ethernet'
overhead option '44'

but the second interface I put br-lan or eth0 or wireless lan ?

or wlan0 which corresponds to wifi?

I made an ifconfig

Summary

Capture d’écran 2021-05-22 à 01.22.24

edit ::

the soluce is here after my test :wink:

config queue 'eth1'
	option qdisc 'cake'
	option script 'piece_of_cake.qos'
	option linklayer 'none'
	option enabled '1'
	option download '0'
	option upload '16000'
	option debug_logging '0'
	option verbosity '5'
	option interface 'wan'

config queue
	option interface 'wlan0'
	option download '0'
	option upload '56000'
	option debug_logging '0'
	option verbosity '5'
	option qdisc 'cake'
	option script 'piece_of_cake.qos'
	option linklayer 'ethernet'
	option overhead '44'
	option enabled '0'

config queue
	option enabled '1'
	option download '0'
	option upload '56000'
	option debug_logging '0'
	option verbosity '5'
	option qdisc 'cake'
	option script 'piece_of_cake.qos'
	option linklayer 'ethernet'
	option overhead '44'
	option interface 'lan1'