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[TCP] FRTO: Sysctl documentation for SACK enhanced version

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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>
This commit is contained in:
Ilpo Järvinen 2007-02-21 23:16:38 -08:00 committed by David S. Miller
parent 4dc2665e36
commit 127af0c44f
1 changed files with 4 additions and 1 deletions
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5
Documentation/networking/ip-sysctl.txt
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@ -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.