The OpenStack Tempest test tempest.api.network.test_extra_dhcp_options fails with OpenDaylight as the ML2 MechanismDriver. The logs from the Tempest failure are below:

[vagrant@localhost tempest]$ testr failing
======================================================================
FAIL: setUpClass (tempest.api.network.test_extra_dhcp_options.ExtraDHCPOptionsIpV6TestJSON)
tags: worker-0
----------------------------------------------------------------------
Traceback (most recent call last):
File "tempest/test.py", line 273, in setUpClass
cls.resource_setup()
File "tempest/api/network/test_extra_dhcp_options.py", line 46, in resource_setup
cls.port = cls.create_port(cls.network)
File "tempest/api/network/base.py", line 241, in create_port
**kwargs)
File "tempest/services/network/json/network_client.py", line 145, in _create
resp, body = self.post(uri, post_data)
File "tempest/common/rest_client.py", line 236, in post
return self.request('POST', url, extra_headers, headers, body)
File "tempest/common/rest_client.py", line 450, in request
resp, resp_body)
File "tempest/common/rest_client.py", line 547, in _error_checker
raise exceptions.ServerFault(message)
ServerFault: Got server fault
Details: create_port_postcommit failed.
Ran 1 tests
FAILED (id=5, failures=1)
[vagrant@localhost tempest]$