Comment 1 for bug 1523638

http://logs.openstack.org/42/250542/7/check/gate-tempest-dsvm-neutron-linuxbridge/3a00f8b/logs/screen-q-agt.txt.gz?#_2015-12-04_18_18_02_896

2015-12-04 18:18:02.896 DEBUG neutron.plugins.ml2.drivers.linuxbridge.agent.linuxbridge_neutron_agent [req-d13b0a54-2efb-4577-83b1-6d44ea35b21b None None] Tap device: tap8912d290-97 does not exist on this host, skipped add_tap_interface /opt/stack/new/neutron/neutron/plugins/ml2/drivers/linuxbridge/agent/linuxbridge_neutron_agent.py:413