I have this topology
PPPoE MIkrotik Server (NAS) -----> Wireless Link ------> RB750 -----> Bridge ---> RB411 (Access Point) Wireless NV2 ---> CPEs
So the bridge on RB750 Bridge togheter the RB750 ether1 and RB411 ether1 (bridged with wlan1)
Can someone explain me how I should set the NAS, RB750 and RB411 ethernets MTU and L2MTU.
The will be to bring the PPPoE sessions that begin into the CPE from the Access Point to the NAS using MPLS+VPLS
How i should configure the PPPoE MRU ?