As shown in the above figure, the appliance has 4 physical 1G ports --- eno1/2/3/4. eno1 and eno2 are aggregated to a bonded interface device0 in 802.3ad mode. So they need to be connected to one or more network devices supporting Link Aggregation Control Protocol (LACP). Bonded interface device0 is connected to a Linux bridge named devicebr internally. CloudEOS and vEOS launcher script will setup CloudEOS and vEOS Router with connecting their management interfaces to devicebr. eno3 and eno4 are aggregated to bonded interface cluster0 and cluster0 is connected to Linux bridge clusterbr in the same way. However, they are not used for CloudEOS and vEOS Router setup.