[src/trunk]: src/lib/libc/gen Correct the documentation for SACK; although w...

[kml <kml%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/42192efa9ea8
branches:  trunk
changeset: 495760:42192efa9ea8
user:      kml <kml%NetBSD.org@localhost>
date:      Fri Aug 04 13:31:54 2000 +0000

description:
Correct the documentation for SACK;  although we have some preliminary
code in the tree, it doesn't do anything, and setting the sack sysctl
won't have any effect.

diffstat:

 lib/libc/gen/sysctl.3 |  10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diffs (24 lines):

diff -r 1001c8e0fbfc -r 42192efa9ea8 lib/libc/gen/sysctl.3
--- a/lib/libc/gen/sysctl.3     Fri Aug 04 11:57:59 2000 +0000
+++ b/lib/libc/gen/sysctl.3     Fri Aug 04 13:31:54 2000 +0000
@@ -1,4 +1,4 @@
-.\"    $NetBSD: sysctl.3,v 1.65 2000/08/02 12:26:54 itojun Exp $
+.\"    $NetBSD: sysctl.3,v 1.66 2000/08/04 13:31:54 kml Exp $
 .\"
 .\" Copyright (c) 1993
 .\"    The Regents of the University of California.  All rights reserved.
@@ -775,10 +775,10 @@
 the greater of the MTU of the interface, and the largest (non-loopback)
 interface MTU on the system.
 .It Li tcp.sack
-Returns a value which determines the level of Selective Acknowledgement
-supported by TCP.  If 2, we will transmit and receive SACK options.
-If 1, we will transmit SACK options, but ignore any SACK options received.
-If 0, SACK is disabled.
+TCP Selective ACKnowledgement (RFC 2018) is not implemented in 
+.Nx 
+at this time.
+Changing this value will have no effect.
 .It Li tcp.win_scale
 If rfc1323 is enabled, a value of 1 indicates RFC1323 window scale options,
 for increasing the TCP window size, are enabled.