Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=71599cd1c381d1b5f58c35653ac1d3627c6276db
Commit: 71599cd1c381d1b5f58c35653ac1d3627c6276db
Parent: b08d5840d2c5a6ac0bce172f4c861974d718e34b
Author: John Heffner <[EMAIL PROTECTED]>
AuthorDate: Tue Feb 27 10:03:56 2007 -0800
Committer: David S. Miller <[EMAIL PROTECTED]>
CommitDate: Wed Feb 28 09:42:15 2007 -0800
[TCP]: Document several sysctls.
This adds documentation for tcp_moderate_rcvbuf, tcp_no_metrics_save,
tcp_base_mss, and tcp_mtu_probing.
Signed-off-by: John Heffner <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
Documentation/networking/ip-sysctl.txt | 26 ++++++++++++++++++++++++++
1 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/Documentation/networking/ip-sysctl.txt
b/Documentation/networking/ip-sysctl.txt
index a0f6842..d3aae1f 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -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
@@ -243,6 +248,27 @@ tcp_mem - vector of 3 INTEGERs: min, pressure, max
Defaults are calculated at boot time from amount of available
memory.
+tcp_moderate_rcvbuf - BOOLEAN
+ If set, TCP performs receive buffer autotuning, attempting to
+ automatically size the buffer (no greater than tcp_rmem[2]) to
+ 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
+ near future can use these to set initial conditions. Usually, this
+ increases overall performance, but may sometimes cause performance
+ degredation. If set, TCP will not cache metrics on closing
+ connections.
+
tcp_orphan_retries - INTEGER
How may times to retry before killing TCP connection, closed
by our side. Default value 7 corresponds to ~50sec-16min
-
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