if allocation-pool range is outside of cidr, internal server error is seen

Build 1.10 2273

Start and end ips are outside of the cidr. Then subnet-create is throwing internal server error

root@nodec22:/usr/lib/python2.7/dist-packages/novaclient# neutron subnet-create vn2 50.1.1.0/24 --allocation-pool start=40.1.1.10,end=40.1.1.20
Request Failed: internal server error while processing your request.
root@nodec22:/usr/lib/python2.7/dist-packages/novaclient#

contrail-api-0.log :
=================

The above is a description of an error in a Python program. Here is
the original traceback:

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/vnc_openstack/neutron_plugin_interface.py", line 241, in plugin_create_subnet
    net_info = cfgdb.subnet_create(subnet['resource'])
  File "/usr/lib/python2.7/dist-packages/vnc_openstack/neutron_plugin_db.py", line 2370, in subnet_create
    self._virtual_network_update(net_obj)
  File "/usr/lib/python2.7/dist-packages/vnc_openstack/neutron_plugin_db.py", line 562, in _virtual_network_update
    self._vnc_lib.virtual_network_update(net_obj)
  File "/usr/lib/python2.7/dist-packages/vnc_api/gen/vnc_api_client_gen.py", line 4853, in virtual_network_update
    content = self._request_server(rest.OP_PUT, uri, data = json_body)
  File "/usr/lib/python2.7/dist-packages/vnc_api/vnc_api.py", line 350, in _request_server
    raise HttpError(status, content)
HttpError: HTTP Status: 500 Content: subnet(default-domain:admin:vn2:50.1.1.0/24) allocation pool ({u'start': u'40.1.1.10', u'end': u'40.1.1.20'}) is out of cidr

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/bottle.py", line 764, in _handle
    return route.call(**args)
  File "/usr/lib/python2.7/dist-packages/bottle.py", line 1575, in wrapper
    rv = callback(*a, **ka)
  File "/usr/lib/python2.7/dist-packages/vnc_openstack/neutron_plugin_interface.py", line 316, in plugin_http_post_subnet
    return self.plugin_create_subnet(context, subnet)
  File "/usr/lib/python2.7/dist-packages/vnc_openstack/neutron_plugin_interface.py", line 245, in plugin_create_subnet
    raise e
HttpError: HTTP Status: 500 Content: subnet(default-domain:admin:vn2:50.1.1.0/24) allocation pool ({u'start': u'40.1.1.10', u'end': u'40.1.1.20'}) is out of cidr
10.204.217.7 - - [2014-07-28 04:19:43] "POST /neutron/subnet HTTP/1.1" 500 156 0.059928