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authorGuillaume Nault <gnault@redhat.com>2022-07-27 14:18:21 +0300
committerDavid S. Miller <davem@davemloft.net>2022-07-29 14:10:21 +0300
commit1c7249e4af8e1aea1c47739ec9dc63cc828b5d08 (patch)
tree94f7b29e0deb5479d39e370d6158c3b04d9aa488 /Documentation/networking
parentdc633700f00f726e027846a318c5ffeb8deaaeda (diff)
downloadlinux-1c7249e4af8e1aea1c47739ec9dc63cc828b5d08.tar.xz
Documentation: Describe net.ipv4.tcp_reflect_tos.
The tcp_reflect_tos option was introduced in Linux 5.10 but was still undocumented. Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking')
-rw-r--r--Documentation/networking/ip-sysctl.rst10
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.rst b/Documentation/networking/ip-sysctl.rst
index 3c39776728b9..56cd4ea059b2 100644
--- a/Documentation/networking/ip-sysctl.rst
+++ b/Documentation/networking/ip-sysctl.rst
@@ -636,6 +636,16 @@ tcp_recovery - INTEGER
Default: 0x1
+tcp_reflect_tos - BOOLEAN
+ For listening sockets, reuse the DSCP value of the initial SYN message
+ for outgoing packets. This allows to have both directions of a TCP
+ stream to use the same DSCP value, assuming DSCP remains unchanged for
+ the lifetime of the connection.
+
+ This options affects both IPv4 and IPv6.
+
+ Default: 0 (disabled)
+
tcp_reordering - INTEGER
Initial reordering level of packets in a TCP stream.
TCP stack can then dynamically adjust flow reordering level