`-h`

`--help`

- Print the help text and exit.

`--version`

- Print the version string and exit.

`tron`

- Trace ON. Enable code tracing, which is to say that lots of debug information will be printed to the syslog (e.g. systemd-journal).

`troff`

- Trace OFF. Disable code tracing.

`status`

- Show runtime status information.

`-d`

`--detailed`

- Print additional details.

`-tTRTYPE`

`--transport=TRTYPE`

- NVMe-over-Fabrics fabric type (default: "tcp").

`-aTRADDR`

`--traddr=TRADDR`

- Discovery controller's network address.

`-sTRSVCID`

`--trsvcid=TRSVCID`

- Transport service id (for IP addressing, e.g. tcp, rdma, this field is the port number).

`-wTRADDR`

`--host-traddr=TRADDR`

- Network source address used on the host to connect to the controller.

`-fIFACE`

`--host-iface=IFACE`

- This field specifies the network interface used on the host to connect to the controller.

`-nNQN`

`--nqn=NQN`

- This field specifies the Controller's NVMe Qualified Name.

  This field is mandatory for I/O Controllers, but is optional for Discovery Controllers (DC). For the latter, the NQN will default to the well-known DC NQN: `nqn.2014-08.org.nvmexpress.discovery` if left undefined.

`TRTYPE`

- rdma, fc, tcp, loop.

`TRADDR`

- IP or Fibre Channel address. E.g. 10.10.0.100.

`TRSVCID`

- E.g., 8009.

`IFACE`

- Network interface name. E.g., eth1, enp0s8, wlp0s20f3.

`NQN`

- NVMe Qualified Name.