NAME¶
disc
—
software discard network interface
SYNOPSIS¶
device disc
DESCRIPTION¶
The
disc
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
SIOCSIFADDR
ioctl(2).
Each
disc
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.conf(5).
SEE ALSO¶
inet(4),
intro(4)
HISTORY¶
The
disc
device appears to have been derived
from the
lo(4) device around the time of
4.4BSD. This manpage was adapted from
lo(4) and first appeared in
FreeBSD 5.0.