neutron-plugin-ml2 uses wrong codebase?

Hello community,

after spending a bit of time debugging the "binding_failed" issue with ml2 and openvswitch-mech, I figured out, that the ml2 plugin seems not to be used. Using debug logging I can see a lot of traces from neutron.plugins.openvswitch.agent namespace in /var/log/neutron/openvswitch-agent.log but not even one from neutron.plugins.ml2 namespace.

Thanks in advance

Roman

======== environment ========
root@networknode:~# cat /usr/lib/python2.7/dist-packages/neutron-2014.1.2.egg-info/entry_points.txt
[neutron.ml2.mechanism_drivers]
openvswitch = neutron.plugins.ml2.drivers.mech_openvswitch:OpenvswitchMechanismDriver
[neutron.core_plugins]
openvswitch = neutron.plugins.openvswitch.ovs_neutron_plugin:OVSNeutronPluginV2
ml2 = neutron.plugins.ml2.plugin:Ml2Plugin

root@networknode:~# cat /etc/neutron/neutron.conf
core_plugin = ml2

root@networknode:~# cat /etc/neutron/plugins/ml2/ml2_conf.ini
mechanism_drivers = openvswitch

root@networknode:~# dpkg -l | grep neutron
ii neutron-common 1:2014.1.2-0ubuntu1.1 all Neutron is a virtual network service for Openstack - common
ii neutron-dhcp-agent 1:2014.1.2-0ubuntu1.1 all Neutron is a virtual network service for Openstack - DHCP agent
ii neutron-l3-agent 1:2014.1.2-0ubuntu1.1 all Neutron is a virtual network service for Openstack - l3 agent
ii neutron-lbaas-agent 1:2014.1.2-0ubuntu1.1 all Neutron is a virtual network service for Openstack - LBaaS agent
ii neutron-metadata-agent 1:2014.1.2-0ubuntu1.1 all Neutron is a virtual network service for Openstack - metadata agent
ii neutron-plugin-ml2 1:2014.1.2-0ubuntu1.1 all Neutron is a virtual network service for Openstack - ML2 plugin
ii neutron-plugin-openvswitch-agent 1:2014.1.2-0ubuntu1.1 all Neutron is a virtual network service for Openstack - Open vSwitch plugin agent
ii python-neutron 1:2014.1.2-0ubuntu1.1 all Neutron is a virutal network service for Openstack - Python library
ii python-neutronclient 1:2.3.4-0ubuntu1 all client - Neutron is a virtual network service for Openstack

root@networknode:~# ps aux | grep ml2
neutron 3672 0.3 0.0 101288 29960 ? Ss 17:47 0:10 /usr/bin/python /usr/bin/neutron-openvswitch-agent --config-file=/etc/neutron/neutron.conf --config-file=/etc/neutron/plugins/ml2/ml2_conf.ini --log-file=/var/log/neutron/openvswitch-agent.log

root@networknode:~# lsb_release -d
Description: Ubuntu 14.04.1 LTS