Neutron fails while executing ovs-vsctl

Problem description:
After setting up MOS 8.0 GA OSTF test are not passing and Nova+Neutron throws errors.
Neutron is running in DVR mode, VLAN segmentation, physical network interface is Intel 10G.

<166>Mar 4 02:19:14 comp1 neutron-openvswitch-agent: 2016-03-04 02:19:14.383 15915 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-2a8ab7a1-8de4-433f-ab16-6d308dbf2089 - - - - -] Mapping physical network physnet2 to bridge br-prv
<163>Mar 4 02:19:14 comp1 neutron-openvswitch-agent: 2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl [req-2a8ab7a1-8de4-433f-ab16-6d308dbf2089 - - - - -] Unable to execute ['ovs-vsctl', '--timeout=10', '--oneline', '--format=json', '--', '--columns=type', 'list', 'Interface', 'int-br-prv'].
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl Traceback (most recent call last):
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl File "/usr/lib/python2.7/dist-packages/neutron/agent/ovsdb/impl_vsctl.py", line 63, in run_vsctl
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl log_fail_as_error=False).rstrip()
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py", line 159, in execute
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl raise RuntimeError(m)
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl RuntimeError:
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--timeout=10', '--oneline', '--format=json', '--', '--columns=type', 'list', 'Interface', 'int-br-prv']
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl Exit code: 1
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl
2016-03-04 02:19:14.517 15915 ERROR neutron.agent.ovsdb.impl_vsctl
<166>Mar 4 02:19:14 comp1 neutron-openvswitch-agent: 2016-03-04 02:19:14.733 15915 INFO neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [req-2a8ab7a1-8de4-433f-ab16-6d308dbf2089 - - - - -] Mapping physical network physnet1 to bridge br-floating
<163>Mar 4 02:19:14 comp1 neutron-openvswitch-agent: 2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl [req-2a8ab7a1-8de4-433f-ab16-6d308dbf2089 - - - - -] Unable to execute ['ovs-vsctl', '--timeout=10', '--oneline', '--format=json', '--', '--columns=type', 'list', 'Interface', 'int-br-floating'].
2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl Traceback (most recent call last):
2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl File "/usr/lib/python2.7/dist-packages/neutron/agent/ovsdb/impl_vsctl.py", line 63, in run_vsctl
2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl log_fail_as_error=False).rstrip()
2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl File "/usr/lib/python2.7/dist-packages/neutron/agent/linux/utils.py", line 159, in execute
2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl raise RuntimeError(m)
2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl RuntimeError:
2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl Command: ['sudo', 'neutron-rootwrap', '/etc/neutron/rootwrap.conf', 'ovs-vsctl', '--timeout=10', '--oneline', '--format=json', '--', '--columns=type', 'list', 'Interface', 'int-br-floating']
2016-03-04 02:19:14.870 15915 ERROR neutron.agent.ovsdb.impl_vsctl Exit code: 1