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tcp.7: Document /proc file tcp_abc (new in Linux 2.6.15) 

Text taken from Documentation/networking/ip-sysctl.txt

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2008-11-20 16:27:41 -05:00
parent 407d2d3918
commit f35985c0cc
1 changed files with 23 additions and 0 deletions
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@ -185,6 +185,29 @@ meaning that the option is disabled.
.\" /proc/sys/net/ipv4/tcp_no_metrics_save
.\" 0
.TP
.IR tcp_abc " (Integer; default: 0; since Linux 2.6.15)"
.\" The following is from 2.6.28-rc4: Documentation/networking/ip-sysctl.txt
Controls the Appropriate Byte Count (ABC), defined in RFC 3465.
ABC is a way of increasing the congestion window
.RI ( cwnd )
more slowly in response to partial acknowledgments.
Possible values are:
.RS
.IP 0 3
increase
.I cwnd
once per acknowledgment (no ABC)
.IP 1
increase
.I cwnd
once per acknowledgment of full sized segment
.IP 2
allow increase
.I cwnd
by two if acknowledgment is
of two segments to compensate for delayed acknowledgments.
.RE
.TP
.IR tcp_abort_on_overflow " (Boolean; default: disabled)"
Enable resetting connections if the listening service is too
slow and unable to keep up and accept them.