Интерактивная система просмотра системных руководств (man-ов)
disc (4)
>> disc (4) ( FreeBSD man: Специальные файлы /dev/* )
BSD mandoc
NAME
disc
- software discard network interface
SYNOPSIS
device disc
DESCRIPTION
The
interface is a software discard mechanism which may be
used for performance analysis and/or software testing.
As with other network interfaces, the discard interface must have
network addresses assigned for each address family with which it is to be used.
These addresses
may be set or changed with the
SIOCSIFADDRioctl(2).
Each
interface is created at runtime using interface cloning.
This is
most easily done with the
ifconfig(8)
create
command or using the
cloned_interfaces
variable in
rc.conf5.
The
device appears to have been derived from the
lo(4)
device around the time of
BSD 4.4
This manpage was adapted from
lo(4)
and first appeared in
Fx 5.0 .