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Commit 4edc2f34 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller
Browse files

ip: sysctl documentation cleanup 



Reduced version of the spelling cleanup patch.

Take out the confusing language in tcp_frto, and organize the
undocumented values.

Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Acked-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 53025f5e

Documentation/networking/ip-sysctl.txt

+29 −31
Original line number Diff line number Diff line
@@ -148,9 +148,9 @@ tcp_available_congestion_control - STRING 
	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.

	The initial value of search_low to be used by the packetization layer

	Path MTU discovery (MTU probing).  If MTU probing is enabled,

	this is the initial MSS used by the connection.



tcp_congestion_control - STRING

	Set the congestion control algorithm to be used for new
@@ -186,9 +186,8 @@ tcp_frto - INTEGER 
	where packet loss is typically due to random radio interference

	rather than intermediate router congestion.  F-RTO is sender-side

	only modification. Therefore it does not require any support from

	the peer, but in a typical case, however, where wireless link is

	the local access link and most of the data flows downlink, the

	faraway servers should have F-RTO enabled to take advantage of it.

	the peer.



	If set to 1, basic version is enabled.  2 enables SACK enhanced

	F-RTO if flow uses SACK.  The basic version can be used also when

	SACK is in use though scenario(s) with it exists where F-RTO
@@ -276,7 +275,7 @@ tcp_mem - vector of 3 INTEGERs: min, pressure, max 
	memory.



tcp_moderate_rcvbuf - BOOLEAN

	If set, TCP performs receive buffer autotuning, attempting to

	If set, TCP performs receive buffer auto-tuning, 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.
@@ -360,7 +359,7 @@ tcp_slow_start_after_idle - BOOLEAN 
	Default: 1



tcp_stdurg - BOOLEAN

	Use the Host requirements interpretation of the TCP urg pointer field.

	Use the Host requirements interpretation of the TCP urgent pointer field.

	Most hosts use the older BSD interpretation, so if you turn this on

	Linux might not communicate correctly with them.

	Default: FALSE
@@ -373,12 +372,12 @@ tcp_synack_retries - INTEGER 
tcp_syncookies - BOOLEAN

	Only valid when the kernel was compiled with CONFIG_SYNCOOKIES

	Send out syncookies when the syn backlog queue of a socket

	overflows. This is to prevent against the common 'syn flood attack'

	overflows. This is to prevent against the common 'SYN flood attack'

	Default: FALSE



	Note, that syncookies is fallback facility.

	It MUST NOT be used to help highly loaded servers to stand

	against legal connection rate. If you see synflood warnings

	against legal connection rate. If you see SYN flood warnings

	in your logs, but investigation	shows that they occur

	because of overload with legal connections, you should tune

	another parameters until this warning disappear.
@@ -388,7 +387,7 @@ tcp_syncookies - BOOLEAN 
	to use TCP extensions, can result in serious degradation

	of some services (f.e. SMTP relaying), visible not by you,

	but your clients and relays, contacting you. While you see

	synflood warnings in logs not being really flooded, your server

	SYN flood warnings in logs not being really flooded, your server

	is seriously misconfigured.



tcp_syn_retries - INTEGER
@@ -1236,22 +1235,21 @@ sctp_wmem - vector of 3 INTEGERs: min, default, max 


UNDOCUMENTED:



/proc/sys/net/core/*

	dev_weight FIXME



/proc/sys/net/unix/*

	max_dgram_qlen FIXME



/proc/sys/net/irda/*

	fast_poll_increase FIXME

	warn_noreply_time FIXME

	discovery_slots FIXME

	slot_timeout FIXME

	max_baud_rate FIXME

	discovery_timeout FIXME

fast_poll_increase FIXME

ip6_queue_maxlen FIXME

	lap_keepalive_time FIXME

lo_cong FIXME

max_baud_rate FIXME

max_dgram_qlen FIXME

	max_noreply_time FIXME

	max_tx_data_size FIXME

	max_tx_window FIXME

	min_tx_turn_time FIXME
 
mod_cong FIXME

no_cong FIXME

no_cong_thresh FIXME

slot_timeout FIXME

warn_noreply_time FIXME