% systemctl status network.service
network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network)
   Active: failed (Result: exit-code) since Tue 2013-11-12 09:42:46 EST; 3min 11s ago
  Process: 511 ExecStart=/etc/rc.d/init.d/network start (code=exited, status=1/FAILURE)

Nov 12 09:42:43 localhost.localdomain systemd[1]: Starting LSB: Bring up/down...
Nov 12 09:42:43 localhost.localdomain network[511]: Bringing up loopback inte...
Nov 12 09:42:43 localhost.localdomain network[511]: Bringing up interface em1...
Nov 12 09:42:43 localhost.localdomain network[511]: [FAILED]
Nov 12 09:42:46 center1 network[511]: Bringing up interface br0:  [  OK  ]
Nov 12 09:42:46 center1 systemd[1]: network.service: control process exited...=1
Nov 12 09:42:46 center1 systemd[1]: Failed to start LSB: Bring up/down netw...g.
Nov 12 09:42:46 center1 systemd[1]: Unit network.service entered failed state.