Yep, turn on layer 2 and 3 on each end bonding setup. Layer 2 alone won’t do what you expect as all the packets come from the same MAC address on the remote end 
Homer
Hi I am prolly too stupid to own a computer…
Running RB1000AHX2 6.38.x
I have an internet connection that comes into my core router MT1.
MT1 is connected via two ethernet lines to MT2 in another building.
Both lines are 100 Megs, traffic is about 120megs and growiing, so we are loosing packets.
I want to bond the two with LACP.
MT1:port 3 → MT2:port 1
MT1 port 10 → MT2:port10
Bonding1 is LACP and includes both lines on each router, the bond seems to work passing traffic.
However the 3->1 connection is only carrying small amount of it, kbps, the other is carrying the full amount of it, mbps.
In both routers, bonding1 is in bridge1 and is bridged with other ports carrying various amounts of traffic to leaf sites on both rotuers.
What am I missing?
Brain?
Homer W. Smith
CEO LIghtlink Internet