The attribute like this in nova.conf:
multi_host=true network_manager=nova.network.manager.VlanManager public_interface=eth0.1000 fixed_range=192.168.100.0/24 dmz_cidr=[]
The attribute like this in nova.conf:
multi_host=true manager= nova.network. manager. VlanManager interface= eth0.1000 192.168. 100.0/24
network_
public_
fixed_range=
dmz_cidr=[]