Comment 7 for bug 1630299

Reproduced on http://mirror.fuel-infra.org/mos-repos/centos/mos9.0-centos7/snapshots/proposed-2017-01-13-184421/x86_64

10 duplicated IP on 448 nodes cluster

As result
14:10:48 Node 'Untitled (89:60)' is back online
14:10:47 Node 'Untitled (8d:50)' has gone away
14:10:47 Node 'Untitled (89:60)' has gone away
14:10:47 Node 'Untitled (5e:e0)' has gone away
14:09:55 Node 'Untitled (ce:f0)' is back online
14:09:46 Node 'Untitled (9f:7c)' has gone away
14:09:46 Node 'Untitled (ca:30)' has gone away
14:08:46 Node 'Untitled (ce:f0)' has gone away
14:08:46 Node 'Untitled (aa:24)' has gone away
14:08:22 Node 'Untitled (7a:e0)' is back online
14:07:16 Node 'Untitled (7a:e0)' has gone away
14:06:46 Node 'Untitled (b5:30)' has gone away
14:06:32 Node 'Untitled (44:b0)' is back online

[root@fuel ~]# fuel nodes | awk -F '|' '{print $5}' | sort | uniq -c | grep -v ' 1 '
      2 10.21.0.25
      2 10.21.0.28
      2 10.21.0.32
      2 10.21.0.34
      2 10.21.0.37
      2 10.21.0.38
      2 10.21.0.39
      2 10.21.0.42
      2 10.21.0.43
      2 10.21.0.44