"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
<!--
+ SPDX-License-Identifier: LGPL-2.1+
+
This file is part of systemd.
Copyright 2014 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-->
<refentry id="timesyncd.conf" conditional='ENABLE_TIMESYNCD'
<refsect1>
<title>Description</title>
- <para>These configuration files control NTP network time
- synchronization.</para>
-
+ <para>These configuration files control NTP network time synchronization. See
+ <citerefentry><refentrytitle>systemd.syntax</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+ for a general description of the syntax.</para>
</refsect1>
<xi:include href="standard-conf.xml" xpointer="main-conf" />
is used instead.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>RootDistanceMaxSec=</varname></term>
+ <listitem><para>Maximum acceptable root distance. Takes a time value (in seconds).
+ Defaults to 5 seconds.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>PollIntervalMinSec=</varname></term>
+ <term><varname>PollIntervalMaxSec=</varname></term>
+ <listitem><para>The minimum and maximum poll intervals for NTP messages.
+ Each setting takes a time value (in seconds).
+ <varname>PollIntervalMinSec=</varname> must not be smaller than 16 seconds.
+ <varname>PollIntervalMaxSec=</varname> must be larger than <varname>PollIntervalMinSec=</varname>.
+ <varname>PollIntervalMinSec=</varname> defaults to 32 seconds, and
+ <varname>PollIntervalMaxSec=</varname> defaults to 2048 seconds.</para></listitem>
+ </varlistentry>
+
</variablelist>
</refsect1>