netdev - [PATCH 18/18] [TCP] FRTO: Sysctl documentation for SACK enhanced version

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Message-Id: <11718850923603-git-send-email-ilpo.jarvinen@helsinki.fi>
Date:	Mon, 19 Feb 2007 13:38:12 +0200
From:	"Ilpo JÃ¤rvinen" <ilpo.jarvinen@...sinki.fi>
To:	netdev@...r.kernel.org
Cc:	David Miller <davem@...emloft.net>,
	Pasi Sarolahti <pasi.sarolahti@...ia.com>
Subject: [PATCH 18/18] [TCP] FRTO: Sysctl documentation for SACK enhanced version

The description is overly verbose to avoid ambiguity between
"SACK enabled" and "SACK enhanced FRTO"

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...sinki.fi>
---
 Documentation/networking/ip-sysctl.txt |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index a0f6842..d66777b 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -178,7 +178,10 @@ tcp_frto - BOOLEAN
 	Enables F-RTO, an enhanced recovery algorithm for TCP retransmission
 	timeouts.  It is particularly beneficial in wireless environments
 	where packet loss is typically due to random radio interference
-	rather than intermediate router congestion.
+	rather than intermediate router congestion. If set to 1, basic
+	version is enabled. 2 enables SACK enhanced FRTO, which is
+	EXPERIMENTAL. The basic version can be used also when SACK is
+	enabled for a flow through tcp_sack sysctl.
 
 tcp_keepalive_time - INTEGER
 	How often TCP sends out keepalive messages when keepalive is enabled.
-- 
1.4.2

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