<para>Virtual Network Device files must have the extension
<filename>.netdev</filename>; other extensions are ignored. Virtual
- network devices are created as soon as networkd is started.</para>
+ network devices are created as soon as networkd is started. If a netdev
+ with the specified name already exists, networkd will use that as-is
+ rather than create its own. Note that the settings of the pre-existing
+ netdev will not be changed by networkd.</para>
<para>The <filename>.netdev</filename> files are read from the files located in the
system network directory <filename>/usr/lib/systemd/network</filename>,
<listitem>
<para>The netdev kind. Currently, <literal>bridge</literal>,
<literal>bond</literal>, <literal>vlan</literal>,
- <literal>macvlan</literal>, <literal>vxlan</literal>,
+ <literal>macvlan</literal>,
+ <literal>ipvlan</literal>, <literal>vxlan</literal>,
<literal>ipip</literal>, <literal>gre</literal>,
<literal>sit</literal>, <literal>vti</literal>,
- <literal>veth</literal>, and <literal>dummy</literal>
+ <literal>veth</literal>, <literal>tun</literal>,
+ <literal>tap</literal> and <literal>dummy</literal>
are supported. This option is compulsory.</para>
</listitem>
</varlistentry>
<para>The maximum transmission unit in bytes to
set for the device. The usual suffixes K, M, G,
are supported and are understood to the base of
- 1024.</para>
+ 1024. This key is not currently suported for
+ <literal>tun</literal> or <literal>tap</literal> devices.
+ </para>
</listitem>
</varlistentry>
<varlistentry>
If none is given, one is generated based on
the interface name and the
<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
+ This key is not currently suported for <literal>tun</literal> or <literal>tap</literal> devices.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
+
+ <refsect1>
+ <title>[IPVLAN] Section Options</title>
+
+ <para>The <literal>[IPVLAN]</literal> section only applies for netdevs of kind
+ <literal>ipvlan</literal>, and accepts the following key:</para>
+
+ <variablelist class='network-directives'>
+ <varlistentry>
+ <term><varname>Mode=</varname></term>
+ <listitem>
+ <para>The IPVLAN mode to use. The supported options are
+ <literal>L2</literal> and <literal>L3</literal>.
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+
+ </refsect1>
+
<refsect1>
<title>[VXLAN] Section Options</title>
<para>The <literal>[VXLAN]</literal> section only applies for netdevs of kind
to discover remote MAC addresses.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><varname>FDBAgeingSec=</varname></term>
+ <listitem>
+ <para>The lifetime of Forwarding Database entry learnt by the kernel in seconds.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>ARPProxy=</varname></term>
+ <listitem>
+ <para>A boolean. When true, enables ARP proxy.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>L2MissNotification=</varname></term>
+ <listitem>
+ <para>A boolean. When true, enables netlink LLADDR miss notifications.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>L3MissNotification=</varname></term>
+ <listitem>
+ <para>A boolean. When true, enables netlink IP ADDR miss notifications.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>RouteShortCircuit=</varname></term>
+ <listitem>
+ <para>A boolean. When true route short circuit is turned on.</para>
+ </listitem>
+ </varlistentry>
</variablelist>
</refsect1>
<refsect1>
<literal>[Tun]</literal> section.</para>
</refsect1>
+ <refsect1>
+ <title>[Bond] Section Options</title>
+
+ <para>The <literal>[Bond]</literal> section accepts the following
+ key:</para>
+
+ <variablelist class='network-directives'>
+ <varlistentry>
+ <term><varname>Mode=</varname></term>
+ <listitem>
+ <para>Specifies one of the bonding policies. The default is
+ <literal>balance-rr</literal> (round robin). Possible values are
+ <literal>balance-rr</literal>,
+ <literal>active-backup</literal>,
+ <literal>balance-xor</literal>,
+ <literal>broadcast</literal>,
+ <literal>802.3ad</literal>,
+ <literal>balance-tlb</literal>, and
+ <literal>balance-alb</literal>.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>TransmitHashPolicy=</varname></term>
+ <listitem>
+ <para>Selects the transmit hash policy to use for slave selection in
+ balance-xor, 802.3ad, and tlb modes. Possible values are
+ <literal>layer2</literal>,
+ <literal>layer3+4</literal>,
+ <literal>layer2+3</literal>,
+ <literal>encap2+3</literal>,
+ <literal>802.3ad</literal>, and
+ <literal>encap3+4</literal>.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>LACPTransmitRate=</varname></term>
+ <listitem>
+ <para>Specifies the rate with which link partner
+ transmits Link Aggregation Control Protocol Data Unit packets
+ in 802.3ad mode. Possible values are
+ <literal>slow</literal>, which requests partner to transmit LACPDUs every 30 seconds, and
+ <literal>fast</literal>, which requests partner to transmit LACPDUs every second.
+ The default value is <literal>slow</literal>.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>MIIMonitorSec=</varname></term>
+ <listitem>
+ <para>Specifies the frequency that Media Independent Interface link
+ monitoring will occur. A value of zero disables MII link monitoring.
+ This values is rounded down to the nearest millisecond. The default
+ value is 0.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>UpDelaySec=</varname></term>
+ <listitem>
+ <para>Specifies the delay before a link is enabled after a link up
+ status has been detected. This value is rounded down to a multiple of
+ MIIMonitorSec. The default value is 0.</para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>DownDelaySec=</varname></term>
+ <listitem>
+ <para>Specifies the delay before a link is disabled after a link down
+ status has been detected. This value is rounded down to a multiple of
+ MIIMonitorSec. The default value is 0.</para>
+ </listitem>
+ </varlistentry>
+
+ </variablelist>
+ </refsect1>
+
<refsect1>
<title>Example</title>
<example>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
+ <citerefentry><refentrytitle>systemd.link</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>
</para>
</refsect1>
~ianmdlvl / elogind.git / blobdiff