It looks like neutron hangs on me for a long time then fails.

[root@my-stack-neutron1 ~]# neutron --debug net-create "myhiav-openstack-client-iv17" --provider:network_type vlan --provider:physical_network physnet1 --provider:segmentation_id 17 --router:external=True
 DEBUG: neutronclient.neutron.v2_0.network.CreateNetwork get_data(Namespace(admin_state=True, columns=[], formatter='table', name=u'myhiav-openstack-client-iv17', prefix='', request_format='json', tenant_id=None, variables=[]))
 DEBUG: neutronclient.client
 REQ: curl -i https://my-stack-cloud.example.com:35357/v2.0/tokens -X POST -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"auth": {"tenantName": "admin", "passwordCredentials": {"username": "admin", "password": "keystoneXXXXZZZZ"}}}'

 DEBUG: neutronclient.client RESP:{'date': 'Fri, 19 Sep 2014 19:32:25 GMT', 'vary': 'X-Auth-Token', 'content-length': '3326', 'status': '200', 'content-type': 'application/json'} {"access": {"token": {"issued_at": "2014-09-19T19:32:25.735804", "expires": "2014-09-19T22:32:25Z", "id": "7f3891240e4444afaee3c90dd8a0684c", "tenant": {"description": "admin tenant", "enabled": true, "id": "6ee4443740374e119f035e2cc4229ddc", "name": "admin"}}, "serviceCatalog": [{"endpoints": [{"adminURL": "https://my-stack-cloud.example.com:8774/v2/6ee4443740374e119f035e2cc4229ddc", "region": "RegionOne", "internalURL": "https://my-stack-cloud.example.com:8774/v2/6ee4443740374e119f035e2cc4229ddc", "id": "3e826fc3714643968db91c9dc5192290", "publicURL": "https://my-stack-cloud.example.com:8774/v2/6ee4443740374e119f035e2cc4229ddc"}], "endpoints_links": [], "type": "compute", "name": "nova"}, {"endpoints": [{"adminURL": "https://my-stack-cloud.example.com:9696", "region": "RegionOne", "internalURL": "https://my-stack-cloud.example.com:9696", "id": "4087b3f0ba2249da8a887157a38b0ecd", "publicURL": "https://my-stack-cloud.example.com:9696"}], "endpoints_links": [], "type": "network", "name": "neutron"}, {"endpoints": [{"adminURL": "https://my-stack-cloud.example.com:9292", "region": "RegionOne", "internalURL": "https://my-stack-cloud.example.com:9292", "id": "868fb57175ed4540aacdb0475e5a36d7", "publicURL": "https://my-stack-cloud.example.com:9292"}], "endpoints_links": [], "type": "image", "name": "glance"}, {"endpoints": [{"adminURL": "https://my-stack-cloud.example.com:8777", "region": "RegionOne", "internalURL": "https://my-stack-cloud.example.com:8777", "id": "37f968863cb247ce8d5d1f1e4fa3dd33", "publicURL": "https://my-stack-cloud.example.com:8777"}], "endpoints_links": [], "type": "metering", "name": "ceilometer"}, {"endpoints": [{"adminURL": "https://my-stack-cloud.example.com:8776/v1/6ee4443740374e119f035e2cc4229ddc", "region": "RegionOne", "internalURL": "https://my-stack-cloud.example.com:8776/v1/6ee4443740374e119f035e2cc4229ddc", "id": "14df05750efa4b57b8db80de2d70ff3b", "publicURL": "https://my-stack-cloud.example.com:8776/v1/6ee4443740374e119f035e2cc4229ddc"}], "endpoints_links": [], "type": "volume", "name": "cinder"}, {"endpoints": [{"adminURL": "http://my-stack-cloud.example.com:8004/v1/6ee4443740374e119f035e2cc4229ddc", "region": "RegionOne", "internalURL": "http://my-stack-cloud.example.com:8004/v1/6ee4443740374e119f035e2cc4229ddc", "id": "778de417982e4d1291d0882830f66cc9", "publicURL": "http://my-stack-cloud.example.com:8004/v1/6ee4443740374e119f035e2cc4229ddc"}], "endpoints_links": [], "type": "orchestration", "name": "heat"}, {"endpoints": [{"adminURL": "https://my-cloud-1.example.com/swift/v1", "region": "RegionOne", "internalURL": "https://my-cloud-1.example.com/swift/v1", "id": "3b40cc92696d48fc93e0582c5f0b7c89", "publicURL": "https://my-cloud-1.example.com/swift/v1"}], "endpoints_links": [], "type": "object-store", "name": "swift"}, {"endpoints": [{"adminURL": "https://my-stack-cloud.example.com:35357/v2.0", "region": "RegionOne", "internalURL": "https://my-stack-cloud.example.com:5000/v2.0", "id": "6c4acb325eac4bd4bfcd6ca9432e062d", "publicURL": "https://my-stack-cloud.example.com:5000/v2.0"}], "endpoints_links": [], "type": "identity", "name": "keystone"}], "user": {"username": "admin", "roles_links": [], "id": "a75e9cdc94bf4c60a2df34d6893cbb55", "roles": [{"name": "admin"}], "name": "admin"}, "metadata": {"is_admin": 0, "roles": ["f93cc9fac4e1489d90cd94ae333c4967"]}}}

 DEBUG: neutronclient.client
 REQ: curl -i https://my-stack-cloud.example.com:9696/v2.0/networks.json -X POST -H "X-Auth-Token: 7f3891240e4444afaee3c90dd8a0684c" -H "Content-Type: application/json" -H "Accept: application/json" -H "User-Agent: python-neutronclient" -d '{"network": {"router:external": "True", "name": "myhiav-openstack-client-iv17", "provider:physical_network": "physnet1", "admin_state_up": true, "provider:network_type": "vlan", "provider:segmentation_id": "17"}}'

 DEBUG: neutronclient.client throwing ConnectionFailed :
 ERROR: neutronclient.shell Connection to neutron failed:
 Traceback (most recent call last):
   File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 526, in run_subcommand
     return run_command(cmd, cmd_parser, sub_argv)
   File "/usr/lib/python2.6/site-packages/neutronclient/shell.py", line 79, in run_command
     return ...