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man: document the new EmitLLDP= .network setting

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Also, beef up the LLDP documentation a bit.
This commit is contained in:
Lennart Poettering 2016-02-21 20:58:01 +01:00
parent c8048350b8
commit da6c766d53
1 changed files with 22 additions and 2 deletions
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24
man/systemd.network.xml
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@ -335,16 +335,36 @@
<varlistentry>
<term><varname>LLDP=</varname></term>
<listitem>
<para>Controls support for LLDP reception. Accepts a boolean or the special value
<para>Controls support for Ethernet LLDP packet reception. LLDP is a link-layer protocol commonly
implemented on professional routers and bridges which announces which physical port a system is connected
to, as well as other related data. Accepts a boolean or the special value
<literal>routers-only</literal>. When true, incoming LLDP packets are accepted and a database of all LLDP
neighbors maintained. If <literal>routers-only</literal> is set only LLDP data of various types of routers
is collected and LLDP data about other types of devices ignored (such as stations, telephones and
others). If false, LLDP reception is disabled. Defaults to <literal>routers-only</literal>. Use
<citerefentry><refentrytitle>networkctl</refentrytitle><manvolnum>1</manvolnum></citerefentry> to query the
collected neighbor data.
collected neighbor data. LLDP is only available on Ethernet links. See <varname>EmitLLDP=</varname> below
for enabling LLDP packet emission from the local system.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>EmitLLDP=</varname></term>
<listitem>
<para>Controls support for Ethernet LLDP packet emission. Accepts a boolean parameter and defaults to
false. If enabled a short LLDP packet with information about the local system is sent out in regular
intervals on the link. The LLDP packet will contain information about the local host name, the local
machine ID (as stored in
<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>) and the
local interface name, as well as the pretty hostname of the system (as set in
<citerefentry><refentrytitle>machine-info</refentrytitle><manvolnum>5</manvolnum></citerefentry>). LLDP
emission is only available on Ethernet links. Note that this setting passed data suitable for
identification of host to the network and should thus not be used on untrusted networks, where such
identification data should not be made available. Use this option to enable other systems to identify on
which interface they are connected to this system. See <varname>LLDP=</varname> above for an option to
enable LLDP reception.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>BindCarrier=</varname></term>
<listitem>