tap0
carp0
--- baseline advbase=1 advskew=0 (1 ad/sec expected) ---
		0 discarded because of a bad address list
		0 discarded because of a bad address list
--- set advbase=0, then advskew=1 ---
carp0: flags=808843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,PROXY> metric 0 mtu 1500
	groups: carp
	carp: MASTER vhid 1 advbase 1 advskew 1
	carpdev: tap0
		0 discarded because of a bad address list