[root@controller ~]# systemctl enable neutron-l3-agent.service
Created symlink from /etc/systemd/system/multi-user.target.wants/neutron-l3-
agent.service to /usr/lib/systemd/system/neutron-l3-agent.service.

[root@controller ~]# systemctl start neutron-l3-agent.service
[root@controller ~]# systemctl status neutron-l3-agent.service
● neutron-l3-agent.service - OpenStack Neutron Layer 3 Agent
    Loaded: loaded (/usr/lib/systemd/system/neutron-l3-agent.service; enabled;
vendor preset: disabled)
    Active: active (running) since 금 2016-07-22 22:26:09 KST; 6s ago
  Main PID: 3653 (neutron-l3-agen)
    CGroup: /system.slice/neutron-l3-agent.service
            └─3653 /usr/bin/python2 /usr/bin/neutron-l3-agent –config-file /usr/
share/neutron/neutron-dist.conf –config-dir /usr/share/neutron/l3_agent –config-
file /etc/neutron/neutron.conf –config-dir /etc/neutron/conf.d/common …