[TCP] FRTO: Sysctl documentation for SACK enhanced version
authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Thu, 22 Feb 2007 07:16:38 +0000 (23:16 -0800)
committerDavid S. Miller <davem@sunset.davemloft.net>
Thu, 26 Apr 2007 05:23:17 +0000 (22:23 -0700)
The description is overly verbose to avoid ambiguity between
"SACK enabled" and "SACK enhanced FRTO"

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Documentation/networking/ip-sysctl.txt

index 702d1d8dd04a1261b598a0370095df1cbfc0899e..719b42907314e7934d0470c7205218f21f084d36 100644 (file)
@@ -183,7 +183,10 @@ 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.