the interface has carrier. In most
cases this is equal to the value of NM_DEVICE_INTERFACE_FLAG_LOWER_UP.
However some devices have a non-standard carrier detection mechanism.
the flag to indicate device LLDP status. Since: 1.32.
the physical link is up. Corresponds to kernel IFF_LOWER_UP.
receive all packets. Corresponds to kernel IFF_PROMISC. Since: 1.32.
the interface is enabled from the administrative point of view. Corresponds to kernel IFF_UP.
Flags for a network interface.