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-rw-r--r--Documentation/networking/ip-sysctl.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 702d1d8dd04a..719b42907314 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -183,7 +183,10 @@ tcp_frto - BOOLEAN
183 Enables F-RTO, an enhanced recovery algorithm for TCP retransmission 183 Enables F-RTO, an enhanced recovery algorithm for TCP retransmission
184 timeouts. It is particularly beneficial in wireless environments 184 timeouts. It is particularly beneficial in wireless environments
185 where packet loss is typically due to random radio interference 185 where packet loss is typically due to random radio interference
186 rather than intermediate router congestion. 186 rather than intermediate router congestion. If set to 1, basic
187 version is enabled. 2 enables SACK enhanced FRTO, which is
188 EXPERIMENTAL. The basic version can be used also when SACK is
189 enabled for a flow through tcp_sack sysctl.
187 190
188tcp_keepalive_time - INTEGER 191tcp_keepalive_time - INTEGER
189 How often TCP sends out keepalive messages when keepalive is enabled. 192 How often TCP sends out keepalive messages when keepalive is enabled.