</variablelist>
</refsect1>
+ <refsect1>
+ <title>[Bridge] Section Options</title>
+
+ <para>The <literal>[Bridge]</literal> section only applies for
+ netdevs of kind <literal>bridge</literal>, and accepts the
+ following key:</para>
+
+ <variablelist class='network-directives'>
+ <varlistentry>
+ <term><varname>HelloTimeSec=</varname></term>
+ <listitem>
+ <para>HelloTimeSec specifies the number of seconds a hello packet is
+ sent out by the root bridge and the designated bridges. Hello packets are
+ used to communicate information about the topology throughout the entire
+ bridged local area network.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>MaxAgeSec=</varname></term>
+ <listitem>
+ <para>MaxAgeSec specifies the number of seconds of maximum message age.
+ If the last seen (received) hello packet is more than this number of
+ seconds old, the bridge in question will start the takeover procedure
+ in attempt to become the Root Bridge itself.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term><varname>ForwardDelaySec=</varname></term>
+ <listitem>
+ <para>ForwardDelaySec specifies the number of seconds spent in each
+ of the Listening and Learning states before the Forwarding state is entered.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+
+ </refsect1>
+
<refsect1>
<title>[VLAN] Section Options</title>
<refsect1>
<title>Example</title>
<example>
- <title>/etc/systemd/network/bridge.netdev</title>
+ <title>/etc/systemd/network/25-bridge.netdev</title>
<programlisting>[NetDev]
Name=bridge0
</example>
<example>
- <title>/etc/systemd/network/vlan1.netdev</title>
+ <title>/etc/systemd/network/25-vlan1.netdev</title>
<programlisting>[Match]
Virtualization=no
Id=1</programlisting>
</example>
<example>
- <title>/etc/systemd/network/ipip.netdev</title>
+ <title>/etc/systemd/network/25-ipip.netdev</title>
<programlisting>[NetDev]
Name=ipip-tun
Kind=ipip
TTL=64</programlisting>
</example>
<example>
- <title>/etc/systemd/network/tap.netdev</title>
+ <title>/etc/systemd/network/25-tap.netdev</title>
<programlisting>[NetDev]
Name=tap-test
Kind=tap
PacketInfo=true</programlisting> </example>
<example>
- <title>/etc/systemd/network/sit.netdev</title>
+ <title>/etc/systemd/network/25-sit.netdev</title>
<programlisting>[NetDev]
Name=sit-tun
Kind=sit
</example>
<example>
- <title>/etc/systemd/network/gre.netdev</title>
+ <title>/etc/systemd/network/25-gre.netdev</title>
<programlisting>[NetDev]
Name=gre-tun
Kind=gre
</example>
<example>
- <title>/etc/systemd/network/vti.netdev</title>
+ <title>/etc/systemd/network/25-vti.netdev</title>
<programlisting>[NetDev]
Name=vti-tun
</example>
<example>
- <title>/etc/systemd/network/veth.netdev</title>
+ <title>/etc/systemd/network/25-veth.netdev</title>
<programlisting>[NetDev]
Name=veth-test
Kind=veth
</example>
<example>
- <title>/etc/systemd/network/bond.netdev</title>
+ <title>/etc/systemd/network/25-bond.netdev</title>
<programlisting>[NetDev]
Name=bond1
Kind=bond
</example>
<example>
- <title>/etc/systemd/network/dummy.netdev</title>
+ <title>/etc/systemd/network/25-dummy.netdev</title>
<programlisting>[NetDev]
Name=dummy-test
Kind=dummy