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SUSE:SLE-12-SP3:Update
man-pages.13069
man-pages-tcp_fack.patch
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File man-pages-tcp_fack.patch of Package man-pages.13069
Index: man-pages-4.02/man7/tcp.7 =================================================================== --- man-pages-4.02.orig/man7/tcp.7 2015-08-08 18:24:11.000000000 +0200 +++ man-pages-4.02/man7/tcp.7 2019-10-25 09:44:44.393599475 +0200 @@ -403,9 +403,31 @@ When enabled, connectivity to some destinations could be affected due to older, misbehaving routers along the path causing connections to be dropped. .TP -.IR tcp_fack " (Boolean; default: enabled; since Linux 2.2)" +.IR tcp_fack " (integer; default: see below; since Linux 2.2)" .\" Since 2.1.92 Enable TCP Forward Acknowledgement support. + +Prior to Linux 4.11, this option was enabled by default. +In Linux 4.11, it was disabled by default in favor of RACK (see +tcp_recovery). +In Linux 4.15 it was deprecated entirely and its value is ignored. +.TP +.IR tcp_recovery " (integer; default: 0x1; since Linux 4.4)" +Enable various experimental loss recovery features. + +This field is a bitmap to enable various loss recovery features. +.RS +.IP 0x1 +enables the RACK loss detection for fast detection of lost +retransmissions and tail drops. It also subsumes and disables +RFC6675 recovery for SACK connections. (Since Linux 4.4) +.IP 0x2 +makes RACK's reordering window static (min_rtt/4). (Since +Linux 4.15) +.IP 0x4 +disables RACK's DUPACK threshold heuristic (Since Linux +4.18). +.RE .TP .IR tcp_fin_timeout " (integer; default: 60; since Linux 2.2)" .\" Since 2.1.53
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