diff options
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 5 |
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 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. |