Description of problem:

While running the UDP tests in  octavia_tempest_plugin.tests.api.v2.test_pool.PoolAPITest The tests typically fail with a pool creation timeout:

Traceback (most recent call last):
  File "/home/stack/plugins/octavia/octavia_tempest_plugin/tests/api/v2/test_pool.py", line 238, in test_UDP_SI_pool_with_listener_create
    algorithm=const.LB_ALGORITHM_SOURCE_IP)
  File "/home/stack/plugins/octavia/octavia_tempest_plugin/tests/api/v2/test_pool.py", line 445, in _test_pool_create
    CONF.load_balancer.build_timeout)
  File "/home/stack/plugins/octavia/octavia_tempest_plugin/tests/waiters.py", line 96, in wait_for_status
    raise exceptions.TimeoutException(message)
tempest.lib.exceptions.TimeoutException: Request timed out
Details: (PoolAPITest:test_UDP_SI_pool_with_listener_create) show_pool operating_status failed to update to ONLINE within the required time 300. Current status of show_pool: OFFLINE



Version-Release number of selected component (if applicable):

observed in 16.1 (Train) and 13 (Queen)


How reproducible:

100%


Steps to Reproduce:
1. python3 -m testtools.run  octavia_tempest_plugin.tests.api.v2.test_pool.PoolAPITest.test_UDP_LC_pool_with_listener_create

Actual results:

Traceback (most recent call last):
  File "/home/stack/octavia-tempest-plugin/octavia_tempest_plugin/tests/api/v2/test_pool.py", line 116, in test_UDP_LC_pool_with_listener_create
    algorithm=const.LB_ALGORITHM_LEAST_CONNECTIONS)
  File "/home/stack/octavia-tempest-plugin/octavia_tempest_plugin/tests/api/v2/test_pool.py", line 445, in _test_pool_create
    CONF.load_balancer.build_timeout)
  File "/home/stack/octavia-tempest-plugin/octavia_tempest_plugin/tests/waiters.py", line 96, in wait_for_status
    raise exceptions.TimeoutException(message)
tempest.lib.exceptions.TimeoutException: Request timed out
Details: (PoolAPITest:test_UDP_LC_pool_with_listener_create) show_pool operating_status failed to update to ONLINE within the required time 300. Current status of show_pool: OFFLINE

Ran 1 test in 472.726s
FAILED (failures=1)



Expected results:

Successfull run 


Additional info: