FYI:
Following errors will be reported each time I run tempest.api.compute.admin.test_quotas:QuotasAdminTestXML.test_security_groups_exceed_limit with sg_api set to neutron:


2013-10-12 03:55:07.072 2924 WARNING neutron.scheduler.l3_agent_scheduler [-] No active L3 agents
2013-10-12 03:55:09.905 2924 ERROR neutron.db.db_base_plugin_v2 [-] Validation for CIDR: 10.100.0.0/24 failed - overlaps with subnet e35804b7-35ed-4dca-aa02-5b7cdfa502b3 (CIDR: 10.100.0.0/24)
2013-10-12 03:55:09.915 2924 ERROR neutron.api.v2.resource [-] create failed
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource Traceback (most recent call last):
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/api/v2/resource.py", line 84, in resource
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource     result = method(request=request, **args)
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/api/v2/base.py", line 405, in create
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource     obj = obj_creator(request.context, **kwargs)
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/db/db_base_plugin_v2.py", line 1127, in create_subnet
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource     self._validate_subnet_cidr(context, network, s['cidr'])
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/db/db_base_plugin_v2.py", line 740, in _validate_subnet_cidr
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource     raise q_exc.InvalidInput(error_message=err_msg)
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource InvalidInput: Invalid input for operation: Requested subnet with cidr: 10.100.0.0/24 for network: 2c752684-4b92-439d-ba89-d1dc37adde5d overlaps with another subnet.
2013-10-12 03:55:09.915 2924 TRACE neutron.api.v2.resource
2013-10-12 03:55:11.322 2924 WARNING neutron.scheduler.l3_agent_scheduler [-] No active L3 agents
2013-10-12 03:55:23.234 2924 WARNING neutron.scheduler.l3_agent_scheduler [-] No active L3 agents
2013-10-12 03:55:25.481 2924 WARNING neutron.scheduler.l3_agent_scheduler [-] No active L3 agents
2013-10-12 03:55:26.073 2924 ERROR neutron.api.v2.resource [-] delete failed
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource Traceback (most recent call last):
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/api/v2/resource.py", line 84, in resource
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource     result = method(request=request, **args)
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/api/v2/base.py", line 420, in delete
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource     obj = self._item(request, id, parent_id=parent_id)
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/api/v2/base.py", line 258, in _item
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource     obj = obj_getter(request.context, id, **kwargs)
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/db/db_base_plugin_v2.py", line 1427, in get_port
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource     port = self._get_port(context, id)
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource   File "/usr/lib/python2.6/site-packages/neutron/db/db_base_plugin_v2.py", line 265, in _get_port
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource     raise q_exc.PortNotFound(port_id=id)
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource PortNotFound: Port f825e2ef-e64d-4e73-9318-811e6158b324 could not be found
2013-10-12 03:55:26.073 2924 TRACE neutron.api.v2.resource