Hi Dear Friends I have 3 link Between 2 mikrotik connection type is PPPOE
now i have load balancing by 1 specific username over 3 links ( aggregate 3 links )
PPPoe server and client is mikrotik
in Client so add 3 interface in PPPOE-Client-Connection
NB, not tested, but I guess you need to create a bonding between those three interface and instead of connecting the PPPoE-Server to a specific Ethernet interface you connect the PPPoE-Server to the bounding interface.