From: Ilpo Järvinen Date: Thu, 22 Feb 2007 07:16:38 +0000 (-0800) Subject: [TCP] FRTO: Sysctl documentation for SACK enhanced version X-Git-Tag: accepted/tizen/common/20141203.182822~32113^2~430 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=127af0c44fc916908abd145914d65b9fe598bcd7;p=platform%2Fkernel%2Flinux-arm64.git [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 Signed-off-by: David S. Miller --- diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 702d1d8..719b429 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -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.