2 Unequal Load Balancing With Failover

Hi Dear Friends,

I’ve 2 ISP connection and I want to do load balance this way…

WAN1=10Mbps
WAN2=20Mbps
LAN1=30Mbps
I want to create pppoe server on lan interface. when both links are active, all of my pppoe user can share total 30Mbps but when 1Link is down another link will server internet to all of my pppoe users.

Thanks for reading and thanks once again.