Comment 6 for bug 1577632

100% always reproduces (hangs) with opendaylight on board:

2017-03-01 10:37:38.215 750 INFO tempest.lib.common.ssh [-] Creating ssh connection to '172.16.0.134:22' as 'cirros' with public key authentication
2017-03-01 10:37:53.243 750 INFO paramiko.transport [-] Connected (version 2.0, client dropbear_2015.67)
2017-03-01 10:37:53.351 750 INFO paramiko.transport [-] Authentication (publickey) successful!
2017-03-01 10:37:53.373 750 INFO tempest.lib.common.ssh [-] ssh connection to cirros@172.16.0.134 successfully created
2017-03-01 10:37:53.488 750 DEBUG tempest.common.utils.linux.remote_client [-] Remote command: set -eu -o pipefail; PATH=$PATH:/sbin; curl http://169.254.169.254/latest/meta-data/public-ipv4 exec_command tempest/common/utils/linux/remote_client.py:90
2017-03-01 10:37:53.488 750 INFO tempest.lib.common.ssh [-] Creating ssh connection to '172.16.0.134:22' as 'cirros' with public key authentication
2017-03-01 10:37:53.490 750 INFO paramiko.transport [-] Connected (version 2.0, client dropbear_2015.67)
2017-03-01 10:37:53.598 750 INFO paramiko.transport [-] Authentication (publickey) successful!
2017-03-01 10:37:53.621 750 INFO tempest.lib.common.ssh [-] ssh connection to cirros@172.16.0.134 successfully created
2017-03-01 10:40:02.446 750 INFO tempest.lib.common.rest_client [req-f562cab5-4786-4276-9492-75ce0875daf6 ] Request (TestServerBasicOps:_run_cleanups): 202 DELETE http://172.16.0.3:8774/v2.1/os-floating-ips/1213269b-3c1c-4368-ba02-86a0c7b7a714 1.517s