Hello,
I made the configuration instructions as on the website https://help.mikrotik.com/docs/display/ROS/Wireless+VLAN+Trunk but I decided to make a little modification, instead of vlan10 I changed to two vlans (vlan10, vlan20).
I want to achieve something like that to have a backup link either to r1 or to r2.
When I add vlan10 to bridge on r1, I would like dhclient on r2 to get the IP address from the r1 router. And of course vice versa
I would use OSPF.
Something like here http://forum.mikrotik.com/t/ospf-60ghz-and-5ghz-with-two-hex/130610/1
Your APs and your ST devices, must both be able to pass Tagged traffic on VLANs 10 and 20.
When I set static IP for both VLANs on both Routers I can ping them:
On R1 i set IP in eg. 10.10.15.1(vlan15 inteface) on R2 I set IP 10.10.15.15 (vlan15 interface).
But i don’t quite know how to transmit internet (I thinking in NAT category 
)
Instead of guessing, it would be best if you posted the configuration of both routers with /export hide-sensitive.. also remove any serials, public IPs if any etc…
Also a network diagram of the exact topology would be nice…
Which Program is good to draw Network Topology? I prepare IT, and the exports ASAP.
As per…
https://forum.mikrotik.com/viewtopic.php?p=908118
NETWORK DIAGRAM APPS:
https://online.visual-paradigm.com/diag … -software/
https://www.lucidchart.com/pages/
https://drawio-app.com/product/
https://www.diagrams.net/ (its older sibling soon to be discontinued https://drawio-app.com/product/)
( Other links for diagrams.net - https://www.youtube.com/watch?v=P3ieXjI7ZSk & https://www.youtube.com/watch?v=mpF1i9sfEJ0 )
https://sourceforge.net/projects/dia-installer/
https://www.yworks.com/products/yed (and icons for yed → https://github.com/danger89/yEd_cisco_network_icons )
https://www.libreoffice.org/discover/draw/
http://kilievich.com/fpinger/ - has a simple drawing program but not its main intent.
Another idea would be to apply MSTP between Router A and Router B, disable any protocol-mode on the APs and STs between.
Then you could modify the internal path costs so that each VLAN could follow a different path and at the same time keeping redundancy enabled…