The 16.04 OS has acceess to the br_netfilter module in kernel ">=4.4" and must be loaded to allow for bridge tunning. Without the module the following error happens in subsequent playbook calls: [0] [0] - http://cdn.pasteraw.com/prrnxqv7lz880g7kuv8040kmtefz6sd Change-Id: I526c0f9bd082a441f9f49e8ba64a5bcc74317340 Signed-off-by: Kevin Carter <kevin.carter@rackspace.com>