TCP sysctl documentation: MTU probing
Subsystems (3)
PATCH 2/3 TCP sysctl documentation: MTU probing
Documentation for sysctls tcp_mtu_probing and tcp_base_mss.
Signed-off-by John Heffner <[email protected]>
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commit 6da0563572e0a6d0abda9d950f30902844c37862
tree 6f21ae02c11a1340412a926e8e2f568f5ed3b5a8
parent 17cb799000caef3b2fed28cc5d0601bb2311efa8
author John Heffner <[email protected]> Mon, 26 Feb 2007 20:02:35 -0500 committer John Heffner <[email protected]> Mon, 26 Feb 2007 20:02:35 -0500
Documentation/networking/ip-sysctl.txt | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-)
Documentation/networking/ip-sysctl.txt +12 -0
@@ -147,6 +147,11 @@ tcp_available_congestion_control - STRING More congestion control algorithms may be available as modules, but not loaded. +tcp_base_mss - INTEGER + The initial value of search_low to be used by Packetization Layer + Path MTU Discovery (MTU probing). If MTU probing is enabled, + this is the inital MSS used by the connection. + tcp_congestion_control - STRING Set the congestion control algorithm to be used for new connections. The algorithm "reno" is always available, but
@@ -249,6 +254,13 @@ tcp_moderate_rcvbuf - BOOLEAN match the size required by the path for full throughput. Enabled by default. +tcp_mtu_probing - INTEGER + Controls TCP Packetization-Layer Path MTU Discovery. Takes three + values: + 0 - Disabled + 1 - Disabled by default, enabled when an ICMP black hole detected + 2 - Always enabled, use initial MSS of tcp_base_mss. + tcp_no_metrics_save - BOOLEAN By default, TCP saves various connection metrics in the route cache when the connection closes, so that connections established in the