<s>
TCP	B-Protocol
Fusion	I-Protocol
is	O
a	O
feature	O
for	O
providing	O
TCP	O
loopback	O
and	O
is	O
implemented	O
in	O
the	O
Transmission	B-Protocol
Control	I-Protocol
Protocol	I-Protocol
(	O
TCP	O
)	O
stack	O
within	O
Oracle	B-Application
 '	O
Solaris-10	O
and	O
Solaris-11	O
operating	O
systems	O
as	O
well	O
as	O
a	O
number	O
of	O
software	O
projects	O
based	O
on	O
the	O
open	O
source	O
codebase	O
from	O
the	O
OpenSolaris	B-Operating_System
project	O
.	O
</s>
<s>
The	O
feature	O
may	O
be	O
enabled	O
or	O
disabled	O
via	O
the	O
/etc/system	O
config	O
file	O
for	O
the	O
Solaris	B-Application
or	O
genunix	O
kernel	O
and	O
the	O
only	O
line	O
required	O
is	O
"	O
set	O
ip:do_tcp_fusion	O
=	O
0x0	O
"	O
which	O
set	O
the	O
feature	O
off	O
or	O
FALSE	O
while	O
of	O
"	O
0x1	O
"	O
for	O
hexadecimal	O
TRUE	O
.	O
</s>
