- trema_run (trema run command):
  - run.feature (basic usage)
  - log_dir_option.feature
  - pid_dir_option.feature
  - socket_dir_option.feature
  - conf_option.feature
  - daemonize_option.feature
  - logging_level_option.feature
  - openflow13_option.feature
  - port_option.feature

- trema_killall (trema killall command):
  - killall.feature (basic usage)
  - all_option.feature
  - socket_dir_option.feature

- trema_start (trema start command):
  - start.feature (basic usage)
  - socket_dir_option.feature

- trema_stop (trema stop command):
  - stop.feature (basic usage)
  - socket_dir_option.feature

- trema_delete_link (trema delete_link command):
  - delete_link.feature (basic usage)
  - socket_dir_option.feature

- logger:
  - debug.feature
  - info.feature
  - warn.feature
  - error.feature
  - fatal.feature

- api (controller API):
  - logging.feature
  - send_flow_mod_add.feature

- handlers:
  - start.feature
  - echo_reply.feature
  - switch_ready.feature
  - switch_disconnected.feature
  - packet_in.feature
  - barrier_reply.feature
  - hello_failed.feature