Bridge Priority

RouterOS Wireless Networking
1

From reading https://wiki.mikrotik.com/wiki/Manual:Spanning_Tree_Protocol
it reads “…RouterOS is capable of running bridge interfaces with (R/M)STP support in order to create loop-free and Layer2 redundant environment. It is always recommended to manually set up each bridge’s priority, port priority and port path cost to ensure proper Layer2 functionality at all times. Leaving STP related values to defaults are acceptable for a network that consists of 1 to 2 bridges running with (R/M)STP enabled, but it is highly recommended to manually set these values for larger networks. …”

I would ask what is the recommended manual bridge priority when there is no failover route on the network
(1) AP - Two bridges OSPF Loopback and PPPoE

(2) RB960POE with 5 bridges OSPF loopback and 4 for interface ether1,2 - Ether1,3 - Ether1,4 - Ether1-5

(3) PTP 5 bridges OSPF loopback + 4

2

On a access point bridge the bridge ports have a VLAN + WLAN but both interfaces have role=“designated-port” ? is this correct or should the VLAN be role=root
and if so how do I change bridge port stp priority (hex value)

3

Confused why some AP’s bridge ports all of which have one VLAN + WLAN - some have
Both interfaces = designated port , while more have interface WLAN=root port and interface VLAN=designated port
Should they all be the same as they all have similar paths back to the core !