`-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 is an optional field that specifies the Discovery Controller's NVMe Qualified Name. If not specified, this will default to the well-known DC NQN: `nqn.2014-08.org.nvmexpress.discovery`.

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.