Comment 1 for bug 1553617

From the traceback, it looks like MAAS was unable to determine which interfaces make up your bond interface.

To confirm, it would be helpful if you could let us know the output of the following commands, when run from the rack controller:

find -H /sys/class/net/* | grep bond

python3 -c "from provisioningserver.networks import get_interfaces_definition; from pprint import pprint; pprint(get_interfaces_definition()[0])"