@umutsati 

You need to make sure that the rSTP profile "CIST Priority" value of each switch is different, with the root switch being the lowest value (higher values are lower priority)

Then, set up port profiles enabling rSTP, and increase the priority value upwards for each linked port.  The lower the priority value, the higher priority that link is

in the below, the "core switch" is bademill tower

Router > core switch priority 16

Core switch to remote switch 1, priority 32

core switch to remote switch 2, priority 32

remote switch to remote switch priority 64

core switch CIST 4096

remote switch 1+2 CIST 8192

  @GRL 

You mean like;

Bademli Rack Kabin Priority = 4096 
Bademli Tower = 8192
Forked Switch = 12288

Wedding Hall = 12288

None of those switches are router, all of are omada switches. Router is a pfsense.  And in port configuration there is no option to set "core switch priority" as you see below or do I get it wrong ?

  @umutsati 

you dont have this option in switch port profile?

  @GRL No actually I dont have such option. Is there any global settings to active that on omada controller web page ?

My omada controller version: 5.15.8.2

  @umutsati 

what controller do you use?

  @GRL 

İm using software controller runs on Ubuntu server 

Hi @umutsati 

umutsati wrote

  @GRL 

İm using software controller runs on Ubuntu server 

You need to go to the switch profile page instead of the page where you edit the port and edit the profile BTW. The dedicated page for the switch profile should offer more options.

  @Clive_A 

Actually there is no such setting in switch profile too.Here is my switch profile config settings;

  @umutsati 

Its there if you enable spanning tree

  @GRL 

Hello, okay I finally found the setting here you can see below. How do I configure for each switch ?