Commit 127af0c4 authored by Ilpo Järvinen's avatar Ilpo Järvinen Committed by David S. Miller

[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: default avatarIlpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4dc2665e
......@@ -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.
......
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