Tempest: neutron_tempest_plugin.scenario.test_trunk.TrunkTest.test_trunk_subport_lifecycle

[Amol Kahat]

Description
===========
Tempest test neutron_tempest_plugin.scenario.test_trunk.TrunkTest.test_trunk_subport_lifecycle getting failed.

Logs
====
- https://logserver.rdoproject.org/openstack-periodic-integration-stable2/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-ovb-1ctlr_2comp-featureset020-victoria/10a3dda/logs/undercloud/var/log/tempest/tempest_run.log.txt.gz
- https://logserver.rdoproject.org/openstack-periodic-integration-stable2/opendev.org/openstack/tripleo-ci/master/periodic-tripleo-ci-centos-8-ovb-1ctlr_2comp-featureset020-victoria/20178af/logs/undercloud/var/log/tempest/tempest_run.log.txt.gz

Error
=====
-Timed out waiting for port '655e7287-c44d-4aa9-a739-13566ea7f04d' to transition to get status 'ACTIVE'.

{2} neutron_tempest_plugin.scenario.test_trunk.TrunkTest.test_trunk_subport_lifecycle [220.135303s] ... FAILED

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "/usr/lib/python3.6/site-packages/neutron_tempest_plugin/common/utils.py", line 80, in wait_until_true
        eventlet.sleep(sleep)
      File "/usr/lib/python3.6/site-packages/eventlet/greenthread.py", line 36, in sleep
        hub.switch()
      File "/usr/lib/python3.6/site-packages/eventlet/hubs/hub.py", line 298, in switch
        return self.greenlet.switch()
    eventlet.timeout.Timeout: 60 seconds

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "/usr/lib/python3.6/site-packages/neutron_tempest_plugin/scenario/test_trunk.py", line 221, in test_trunk_subport_lifecycle
        self._wait_for_port(port)
      File "/usr/lib/python3.6/site-packages/neutron_tempest_plugin/scenario/test_trunk.py", line 141, in _wait_for_port
        "status {!r}.".format(port['id'], status)))
      File "/usr/lib/python3.6/site-packages/neutron_tempest_plugin/common/utils.py", line 84, in wait_until_true
        raise exception
    RuntimeError: Timed out waiting for port '655e7287-c44d-4aa9-a739-13566ea7f04d' to transition to get status 'ACTIVE'.