How to Setting Bonding Interface - MikroTik Script RouterOS
Bonding is a technology that allows the aggregation of several Ethernet interfaces into one virtual link, so that it can get a higher data rate/bandwidth and can become a failover link.
# ROUTER 1
# ========
/interface bonding
add slaves=ether4,ether5 disabled=no
/ip address
add address=192.168.50.1/24 interface=bonding1
# ROUTER 2
# ========
/interface bonding
add slaves=ether4,ether5 disabled=no
/ip address
add address=192.168.50.2/24 interface=bonding1