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man: update InitialCongestionWindow= and InitialAdvertisedReceiveWindow=

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Fixes #16643.
This commit is contained in:
Yu Watanabe 2020-09-17 17:01:36 +09:00
parent fef160b5ab
commit 3cb7af5baa
1 changed files with 11 additions and 10 deletions
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21
man/systemd.network.xml
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@ -1389,21 +1389,22 @@ IPv6Token=prefixstable:2002:da8:1::</programlisting></para>
<varlistentry>
<term><varname>InitialCongestionWindow=</varname></term>
<listitem>
<para>The TCP initial congestion window is used during the start of a TCP connection. During the start of a TCP
session, when a client requests a resource, the server's initial congestion window determines how many data bytes
will be sent during the initial burst of data. Takes a size in bytes between 1 and 4294967295 (2^32 - 1). The usual
suffixes K, M, G are supported and are understood to the base of 1024. When unset, the kernel's default will be used.
</para>
<para>The TCP initial congestion window is used during the start of a TCP connection.
During the start of a TCP session, when a client requests a resource, the server's initial
congestion window determines how many packets will be sent during the initial burst of data
without waiting for acknowledgement. Takes a number between 1 and 1023. Note that 100 is
considered an extremely large value for this option. When unset, the kernel's default
(typically 10) will be used.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>InitialAdvertisedReceiveWindow=</varname></term>
<listitem>
<para>The TCP initial advertised receive window is the amount of receive data (in bytes) that can initially be buffered at one time
on a connection. The sending host can send only that amount of data before waiting for an acknowledgment and window update
from the receiving host. Takes a size in bytes between 1 and 4294967295 (2^32 - 1). The usual suffixes K, M, G are supported
and are understood to the base of 1024. When unset, the kernel's default will be used.
</para>
<para>The TCP initial advertised receive window is the amount of receive data (in bytes)
that can initially be buffered at one time on a connection. The sending host can send only
that amount of data before waiting for an acknowledgment and window update from the
receiving host. Takes a number between 1 and 1023. Note that 100 is considered an extremely
large value for this option. When unset, the kernel's default will be used.</para>
</listitem>
</varlistentry>
<varlistentry>