tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_network_basic_ops fails with timeout

[John Dickinson]

As seen in http://logs.openstack.org/39/49739/3/check/check-tempest-devstack-vm-neutron/15ef2a3/console.html:

2013-10-08 00:06:13.601 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops Traceback (most recent call last):
2013-10-08 00:06:13.601 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops File "tempest/scenario/test_network_basic_ops.py", line 254, in _check_public_network_connectivity
2013-10-08 00:06:13.601 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops private_key)
2013-10-08 00:06:13.602 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops File "tempest/scenario/manager.py", line 627, in _check_vm_connectivity
2013-10-08 00:06:13.602 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops timeout=self.config.compute.ssh_timeout),
2013-10-08 00:06:13.602 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops File "tempest/scenario/manager.py", line 617, in _is_reachable_via_ssh
2013-10-08 00:06:13.603 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops return ssh_client.test_connection_auth()
2013-10-08 00:06:13.603 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops File "tempest/common/ssh.py", line 148, in test_connection_auth
2013-10-08 00:06:13.603 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops connection = self._get_ssh_connection()
2013-10-08 00:06:13.604 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops File "tempest/common/ssh.py", line 76, in _get_ssh_connection
2013-10-08 00:06:13.604 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops password=self.password)
2013-10-08 00:06:13.604 | 2013-10-08 00:04:07.654 23686 TRACE tempest.scenario.test_network_basic_ops SSHTimeout: Connection to the 172.24.4.229 via SSH timed out.