2017-03-28 13:49:23      (test_host1)        -   DEBUG: Executing: "ovs-vsctl add-br t_br0"
2017-03-28 13:49:23      (test_host1)        -   DEBUG: Executing: "ethtool -i t_br0"
2017-03-28 13:49:23      (test_host1)        -   DEBUG: Executing: "ovs-vsctl add-port t_br0 int0 -- set Interface int0 type=internal  ofport_request=5 name=int0"
2017-03-28 13:49:23      (test_host1)        -   DEBUG: Executing: "ethtool -i int0"
2017-03-28 13:49:23      (test_host1)        -   DEBUG: Executing: "ovs-vsctl add-port t_br0 geneve0 -- set Interface geneve0 type=geneve  option:remote_ip=192.168.2.2 option:key=flow ofport_request=10"
2017-03-28 13:49:23      (test_host1)        -   DEBUG: Executing: "ethtool -i genev_sys_6081"
2017-03-28 13:49:23      (test_host1)        -   DEBUG: Executing: "ovs-vsctl add-port t_br0 geneve0 -- set Interface geneve0 type=geneve  option:remote_ip=192.168.2.2 option:key=flow ofport_request=10"
2017-03-28 13:49:23      (test_host1)        -   DEBUG:
    Stderr:
    ----------------------------
    ovs-vsctl: cannot create a port named geneve0 because a port named geneve0 already exists on bridge t_br0
    ----------------------------
2017-03-28 13:49:23      (test_host1)        -   ERROR: Command execution failed (exited with 1)
2017-03-28 13:49:23      (test_host1)        -   DEBUG:
    Traceback (most recent call last):
      File "/root/lnst/lnst/Slave/NetTestSlave.py", line 1181, in _process_msg
        result = method(*msg["args"])
      File "/root/lnst/lnst/Slave/NetTestSlave.py", line 304, in create_soft_interface
        dev_name = self._if_manager.create_device_from_config(if_id, config)
      File "/root/lnst/lnst/Slave/InterfaceManager.py", line 254, in create_device_from_config
        device.create()
      File "/root/lnst/lnst/Slave/InterfaceManager.py", line 612, in create
        self._conf.create()
      File "/root/lnst/lnst/Slave/NetConfigDevice.py", line 648, in create
        self._add_tunnels()
      File "/root/lnst/lnst/Slave/NetConfigDevice.py", line 599, in _add_tunnels
        i["type"], options))
      File "/root/lnst/lnst/Common/ExecCmd.py", line 73, in exec_cmd
        raise err
    ExecCmdFail: Command execution failed (exited with 1)

2017-03-28 13:49:23       (localhost)        -   ERROR: Exception raised during configuration.