X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=Documentation%2Fnetworking%2Fip-sysctl.txt;fp=Documentation%2Fnetworking%2Fip-sysctl.txt;h=90ed78110fd49fde8b3a8ad237730e76afb55ab2;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hp=f12007b80a466e33fad7efb03dfe7e4f20913462;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57;p=linux-2.6.git

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index f12007b80..90ed78110 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -102,9 +102,15 @@ inet_peer_gc_maxtime - INTEGER
 TCP variables: 
 
 tcp_abc - INTEGER
-	Controls Appropriate Byte Count defined in RFC3465. If set to
-	0 then does congestion avoid once per ack. 1 is conservative
-	value, and 2 is more agressive.
+	Controls Appropriate Byte Count (ABC) defined in RFC3465.
+	ABC is a way of increasing congestion window (cwnd) more slowly
+	in response to partial acknowledgments.
+	Possible values are:
+		0 increase cwnd once per acknowledgment (no ABC)
+		1 increase cwnd once per acknowledgment of full sized segment
+		2 allow increase cwnd by two if acknowledgment is
+		  of two segments to compensate for delayed acknowledgments.
+	Default: 0 (off)
 
 tcp_syn_retries - INTEGER
 	Number of times initial SYNs for an active TCP connection attempt
@@ -294,15 +300,15 @@ tcp_rmem - vector of 3 INTEGERs: min, default, max
 	Default: 87380*2 bytes.
 
 tcp_mem - vector of 3 INTEGERs: min, pressure, max
-	low: below this number of pages TCP is not bothered about its
+	min: below this number of pages TCP is not bothered about its
 	memory appetite.
 
 	pressure: when amount of memory allocated by TCP exceeds this number
 	of pages, TCP moderates its memory consumption and enters memory
 	pressure mode, which is exited when memory consumption falls
-	under "low".
+	under "min".
 
-	high: number of pages allowed for queueing by all TCP sockets.
+	max: number of pages allowed for queueing by all TCP sockets.
 
 	Defaults are calculated at boot time from amount of available
 	memory.
@@ -362,6 +368,13 @@ tcp_workaround_signed_windows - BOOLEAN
 	not receive a window scaling option from them.
 	Default: 0
 
+tcp_slow_start_after_idle - BOOLEAN
+	If set, provide RFC2861 behavior and time out the congestion
+	window after an idle period.  An idle period is defined at
+	the current RTO.  If unset, the congestion window will not
+	be timed out after an idle period.
+	Default: 1
+
 IP Variables:
 
 ip_local_port_range - 2 INTEGERS