From cc488199d9d23a88b6beb4b85b69d70bac18953d Mon Sep 17 00:00:00 2001 From: Feng Date: Wed, 6 Jul 2016 19:37:34 +0800 Subject: [PATCH] comment net.ipv4.tcp_tw_recycle --- docs/source/tune.rst | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/docs/source/tune.rst b/docs/source/tune.rst index 8cdc3c64a..4d0bb595f 100644 --- a/docs/source/tune.rst +++ b/docs/source/tune.rst @@ -72,8 +72,14 @@ Connection Tracking:: The TIME-WAIT Buckets Pool, Recycling and Reuse:: net.ipv4.tcp_max_tw_buckets=1048576 - net.ipv4.tcp_tw_recycle = 1 - net.ipv4.tcp_tw_reuse = 1 + + # Enable fast recycling of TIME_WAIT sockets. Enabling this + # option is not recommended for devices communicating with the + # general Internet or using NAT (Network Address Translation). + # Since some NAT gateways pass through IP timestamp values, one + # IP can appear to have non-increasing timestamps. + # net.ipv4.tcp_tw_recycle = 1 + # net.ipv4.tcp_tw_reuse = 1 Timeout for FIN-WAIT-2 sockets::