Neutron ML2 Cisco Mechanism Drivers README Cisco mechanism drivers implement the ML2 driver APIs for managing Cisco devices. Notes: The initial version of the Cisco Nexus driver supports only the VLAN network type on a single physical network. Provider networks are not currently supported. The Cisco Nexus mechanism driver's database may have duplicate entries also found in the core ML2 database. Since the Cisco Nexus DB code is a port from the plugins/cisco implementation this duplication will remain until the plugins/cisco code is deprecated. For more details on using Cisco Nexus switches under ML2 please refer to: http://wiki.openstack.org/wiki/Neutron/ML2/MechCiscoNexus