Creating a port with a name which already present is giving internal server error

Build 1.06-49

Creating a port with a name which already present is giving internal server error

root@nodec34:~# neutron port-list |grep sample
| c40a940e-9e43-4b46-800f-4cedeb87109f | sample_port_1 | 02:c4:0a:94:0e:9e | {"subnet_id": "9f09deca-2da3-4ec4-9b85-a8dedbb545d1", "ip_address": "25.1.1.4"} |
| 7b4abe0c-4322-4c41-87a2-eb40234aa1d4 | sample_port_2 | 02:7b:4a:be:0c:43 | {"subnet_id": "9f09deca-2da3-4ec4-9b85-a8dedbb545d1", "ip_address": "25.1.1.5"} |
root@nodec34:~#

root@nodec34:~# neutron port-create --name sample_port_1 c20ab2eb-05ce-4aab-9a5a-8f771ba97168
Request Failed: internal server error while processing your request.
root@nodec34:~# tail /var/log/neutron/server.log
RefsExistError: [u'default-domain', u'project1', u'sample_port_1'] already exists with uuid: c40a940e-9e43-4b46-800f-4cedeb87109f
2014-06-20 16:21:04.926 ERROR [neutron.api.v2.resource] create failed
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/neutron/api/v2/resource.py", line 84, in resource
    result = method(request=request, **args)
  File "/usr/lib/python2.7/dist-packages/neutron/api/v2/base.py", line 405, in create
    obj = obj_creator(request.context, **kwargs)
  File "/usr/lib/python2.7/dist-packages/neutron_plugin_contrail/plugins/opencontrail/contrailplugin.py", line 970, in create_port
    raise e
RefsExistError: [u'default-domain', u'project1', u'sample_port_1'] already exists with uuid: c40a940e-9e43-4b46-800f-4cedeb87109f
root@nodec34:~#