
Ubuntu: Disables the l2gw plugin for neutron in scenario004 until python-networking-l2gw has been cut from a newer version where it uses the fault map from neutron lib. See https://bugs.launchpad.net/ubuntu/+source/networking-l2gw/+bug/1739779 CentOS: Re-enable the service since the new package has been promoted in RDO. Change-Id: I96cf4aee873bb03ce0a0c0ea2603f68e3a8c3573