mirror of
https://github.com/systemd/systemd-stable.git
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227cdf2c7c
This patch adds support the transmit hash policy to use for slave selection in balance-xor, 802.3ad, and tlb modes layer2, layer3+4, layer2+3, encap3+4, encap3+4 Added: 1. BondXmitHashPolicy 2. conf param TransmitHashPolicy Test conf: [NetDev] Name=bond1 Kind=bond [Bond] Mode=802.3ad TransmitHashPolicy=layer2+3 test output: cat /proc/net/bonding/bond1 Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) Bonding Mode: IEEE 802.3ad Dynamic link aggregation Transmit Hash Policy: layer2+3 (2) MII Status: up MII Polling Interval (ms): 0 Up Delay (ms): 0 Down Delay (ms): 0 802.3ad info LACP rate: slow Min links: 0 Aggregator selection policy (ad_select): stable bond bond1 has no active aggregator [tomegun: dropped bond_ prefix from new Bond variable, drop repeated man-page section]
552 lines
28 KiB
XML
552 lines
28 KiB
XML
<?xml version='1.0'?> <!--*-nxml-*-->
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
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<!--
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This file is part of systemd.
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Copyright 2013 Tom Gundersen
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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-->
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<refentry id="systemd.netdev" conditional='ENABLE_NETWORKD'>
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<refentryinfo>
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<title>systemd.network</title>
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<productname>systemd</productname>
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<authorgroup>
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<author>
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<contrib>Developer</contrib>
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<firstname>Tom</firstname>
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<surname>Gundersen</surname>
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<email>teg@jklm.no</email>
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</author>
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</authorgroup>
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</refentryinfo>
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<refmeta>
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<refentrytitle>systemd.netdev</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>systemd.netdev</refname>
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<refpurpose>Virtual Network Device configuration</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<para><filename><replaceable>netdev</replaceable>.netdev</filename></para>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>Network setup is performed by
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<citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>.
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</para>
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<para>Virtual Network Device files must have the extension
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<filename>.netdev</filename>; other extensions are ignored. Virtual
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network devices are created as soon as networkd is started. If a netdev
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with the specified name already exists, networkd will use that as-is
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rather than create its own. Note that the settings of the pre-existing
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netdev will not be changed by networkd.</para>
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<para>The <filename>.netdev</filename> files are read from the files located in the
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system network directory <filename>/usr/lib/systemd/network</filename>,
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the volatile runtime network directory
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<filename>/run/systemd/network</filename> and the local administration
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network directory <filename>/etc/systemd/network</filename>.
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All configuration files are collectively sorted and processed in lexical order,
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regardless of the directories in which they live. However, files with
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identical filenames replace each other. Files in
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<filename>/etc</filename> have the highest priority, files in
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<filename>/run</filename> take precedence over files with the same
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name in <filename>/usr/lib</filename>. This can be used to override a
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system-supplied configuration file with a local file if needed; a symlink in
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<filename>/etc</filename> with the same name as a configuration file in
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<filename>/usr/lib</filename>, pointing to <filename>/dev/null</filename>,
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disables the configuration file entirely.</para>
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</refsect1>
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|
||
<refsect1>
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||
<title>[Match] Section Options</title>
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||
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||
<para>A virtual network device is only created if the
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<literal>[Match]</literal> section matches the current
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environment, or if the section is empty. The following keys are accepted:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>Host=</varname></term>
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<listitem>
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<para>Matches against the hostname or machine ID of the
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host. See <literal>ConditionHost=</literal> in
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for details.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Virtualization=</varname></term>
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<listitem>
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<para>Checks whether the system is executed in a virtualized
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environment and optionally test whether it is a specific
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implementation. See <literal>ConditionVirtualization=</literal> in
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for details.
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</para>
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</listitem>
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</varlistentry>
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||
<varlistentry>
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<term><varname>KernelCommandLine=</varname></term>
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<listitem>
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||
<para>Checks whether a specific kernel command line option is
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set (or if prefixed with the exclamation mark unset). See
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<literal>ConditionKernelCommandLine=</literal> in
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<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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for details.
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</para>
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</listitem>
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</varlistentry>
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||
<varlistentry>
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||
<term><varname>Architecture=</varname></term>
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<listitem>
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||
<para>Checks whether the system is running on a specific
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architecture. See <literal>ConditionArchitecture=</literal> in
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||
<citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>
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||
for details.
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</para>
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</listitem>
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||
</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[NetDev] Section Options</title>
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<para>The <literal>[NetDev]</literal> section accepts the following
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keys:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>Description=</varname></term>
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<listitem>
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<para>A free-form description of the netdev.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Name=</varname></term>
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<listitem>
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<para>The interface name used when creating the
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netdev. This option is compulsory.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Kind=</varname></term>
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<listitem>
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<para>The netdev kind. Currently, <literal>bridge</literal>,
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<literal>bond</literal>, <literal>vlan</literal>,
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<literal>macvlan</literal>, <literal>vxlan</literal>,
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<literal>ipip</literal>, <literal>gre</literal>,
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<literal>sit</literal>, <literal>vti</literal>,
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<literal>veth</literal>, <literal>tun</literal>,
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<literal>tap</literal> and <literal>dummy</literal>
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are supported. This option is compulsory.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>MTUBytes=</varname></term>
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<listitem>
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<para>The maximum transmission unit in bytes to
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set for the device. The usual suffixes K, M, G,
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are supported and are understood to the base of
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1024.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>MACAddress=</varname></term>
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<listitem>
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<para>The MAC address to use for the device.
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If none is given, one is generated based on
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the interface name and the
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<citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[VLAN] Section Options</title>
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<para>The <literal>[VLAN]</literal> section only applies for netdevs of kind <literal>vlan</literal>,
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and accepts the following key:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>Id=</varname></term>
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<listitem>
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<para>The VLAN ID to use. An integer in the range 0–4094.
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This option is compulsory.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[MACVLAN] Section Options</title>
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<para>The <literal>[MACVLAN]</literal> section only applies for netdevs of kind
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<literal>macvlan</literal>, and accepts the following key:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>Mode=</varname></term>
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<listitem>
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<para>The MACVLAN mode to use. The supported options are
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<literal>private</literal>, <literal>vepa</literal>,
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<literal>bridge</literal> and <literal>passthru</literal>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[VXLAN] Section Options</title>
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<para>The <literal>[VXLAN]</literal> section only applies for netdevs of kind
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<literal>vxlan</literal>, and accepts the following key:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>Id=</varname></term>
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<listitem>
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<para>The VXLAN ID to use.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Group=</varname></term>
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<listitem>
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<para>An assigned multicast group IP address.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>TOS=</varname></term>
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<listitem>
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<para>The Type Of Service byte value for a vxlan interface.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>TTL=</varname></term>
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<listitem>
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<para>A fixed Time To Live N on Virtual eXtensible Local Area Network packets.
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N is a number in the range 1-255. 0 is a special value meaning that packets
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inherit the TTL value.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>MacLearning=</varname></term>
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<listitem>
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<para>A boolean. When true, enables dynamic MAC learning
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to discover remote MAC addresses.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[Tunnel] Section Options</title>
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<para>The <literal>[Tunnel]</literal> section only applies for netdevs of kind
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<literal>ipip</literal>, <literal>sit</literal>, <literal>gre</literal> and
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<literal>vti</literal> and accepts the following keys:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>Local=</varname></term>
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<listitem>
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<para>A static local address for tunneled packets.
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It must be an address on another interface of this host.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Remote=</varname></term>
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<listitem>
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<para>The remote endpoint of the tunnel.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>TOS=</varname></term>
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<listitem>
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<para>The Type Of Service byte value for a tunnel interface.
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For details about the TOS see the
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<ulink url="http://tools.ietf.org/html/rfc1349">
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Type of Service in the Internet Protocol Suite
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</ulink> document.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>TTL=</varname></term>
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<listitem>
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<para>A fixed Time To Live N on tunneled packets.
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N is a number in the range 1-255. 0 is a special value meaning that packets
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inherit the TTL value. The default value for IPv4 tunnels is: inherit.
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The default value for IPv6 tunnels is: 64.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>DiscoverPathMTU=</varname></term>
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<listitem>
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<para>A boolean. When true, enables Path MTU Discovery on the tunnel.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[Peer] Section Options</title>
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<para>The <literal>[Peer]</literal> section only applies for netdevs of kind <literal>veth</literal>
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and accepts the following key:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>Name=</varname></term>
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<listitem>
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<para>The interface name used when creating the netdev.
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This option is compulsory.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>MACAddress=</varname></term>
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<listitem>
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<para>The peer MACAddress, if not set it is generated in the same
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way as the MAC address of the main interface.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>[Tun] Section Options</title>
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<para>The <literal>[Tun]</literal> section only applies for netdevs of kind
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<literal>tun</literal>, and accepts the following keys:</para>
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<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>OneQueue=</varname></term>
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<listitem><para>Takes a boolean argument. Configures whether
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all packets are queued at the device (enabled), or a fixed number
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of packets are queued at the device and the rest at the
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<literal>qdisc</literal>. Defaults to <literal>no</literal>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>MultiQueue=</varname></term>
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<listitem><para>Takes a boolean argument. Configures whether to
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use multiple file descriptors (queues) to parallelize packets
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sending and receiving. Defaults to <literal>no</literal>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>PacketInfo=</varname></term>
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<listitem><para>Takes a boolean argument. Configures whether packets
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should be prepened with four extra bytes (two flag bytes and two
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protocol bytes). If disabled it indicates that the packets will be
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pure IP packets. Defaults to <literal>no</literal>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>User=</varname></term>
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<listitem><para>User to grant access to the <filename>/dev/net/tun</filename>
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device.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>Group=</varname></term>
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<listitem><para>Group to grant access to the <filename>/dev/net/tun</filename>
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device.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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|
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</refsect1>
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<refsect1>
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<title>[Tap] Section Options</title>
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<para>The <literal>[Tap]</literal> section only applies for netdevs of kind
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<literal>tap</literal>, and accepts the same keys as the
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<literal>[Tun]</literal> section.</para>
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</refsect1>
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<refsect1>
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<title>[Bond] Section Options</title>
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<para>The <literal>[Bond]</literal> section accepts the following
|
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key:</para>
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||
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||
<variablelist class='network-directives'>
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<varlistentry>
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<term><varname>Mode=</varname></term>
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<listitem>
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<para>Specifies one of the bonding policies. The default is balance-rr (round robin).
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<literal>balance-rr</literal>
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<literal>active-backup</literal>
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<literal>balance-xor</literal>
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<literal>broadcast</literal>
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<literal>802.3ad</literal>
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<literal>balance-tlb</literal>
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<literal>balance-alb</literal>
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><varname>TransmitHashPolicy=</varname></term>
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<listitem>
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<para>Selects the transmit hash policy to use for slave selection in
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balance-xor, 802.3ad, and tlb modes.
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<literal>layer2</literal>
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<literal>layer3+4</literal>
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<literal>layer2+3</literal>
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<literal>encap2+3</literal>
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<literal>802.3ad</literal>
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<literal>encap3+4</literal>
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
|
||
|
||
<refsect1>
|
||
<title>Example</title>
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||
<example>
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||
<title>/etc/systemd/network/bridge.netdev</title>
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<programlisting>[NetDev]
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Name=bridge0
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Kind=bridge</programlisting>
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||
</example>
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<example>
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<title>/etc/systemd/network/vlan1.netdev</title>
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|
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<programlisting>[Match]
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||
Virtualization=no
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[NetDev]
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Name=vlan1
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Kind=vlan
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[VLAN]
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Id=1</programlisting>
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||
</example>
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<example>
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<title>/etc/systemd/network/ipip.netdev</title>
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<programlisting>[NetDev]
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Name=ipip-tun
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Kind=ipip
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MTUBytes=1480
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[Tunnel]
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Local=192.168.223.238
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Remote=192.169.224.239
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TTL=64</programlisting>
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</example>
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<example>
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<title>/etc/systemd/network/tap.netdev</title>
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||
<programlisting>[NetDev]
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Name=tap-test
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Kind=tap
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[Tap]
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MultiQueue=true
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PacketInfo=true</programlisting> </example>
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<example>
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||
<title>/etc/systemd/network/sit.netdev</title>
|
||
<programlisting>[NetDev]
|
||
Name=sit-tun
|
||
Kind=sit
|
||
MTUBytes=1480
|
||
|
||
[Tunnel]
|
||
Local=10.65.223.238
|
||
Remote=10.65.223.239</programlisting>
|
||
</example>
|
||
|
||
<example>
|
||
<title>/etc/systemd/network/gre.netdev</title>
|
||
<programlisting>[NetDev]
|
||
Name=gre-tun
|
||
Kind=gre
|
||
MTUBytes=1480
|
||
|
||
[Tunnel]
|
||
Local=10.65.223.238
|
||
Remote=10.65.223.239</programlisting>
|
||
</example>
|
||
|
||
<example>
|
||
<title>/etc/systemd/network/vti.netdev</title>
|
||
|
||
<programlisting>[NetDev]
|
||
Name=vti-tun
|
||
Kind=vti
|
||
MTUBytes=1480
|
||
|
||
[Tunnel]
|
||
Local=10.65.223.238
|
||
Remote=10.65.223.239</programlisting>
|
||
</example>
|
||
|
||
<example>
|
||
<title>/etc/systemd/network/veth.netdev</title>
|
||
<programlisting>[NetDev]
|
||
Name=veth-test
|
||
Kind=veth
|
||
|
||
[Peer]
|
||
Name=veth-peer</programlisting>
|
||
</example>
|
||
|
||
<example>
|
||
<title>/etc/systemd/network/dummy.netdev</title>
|
||
<programlisting>[NetDev]
|
||
Name=dummy-test
|
||
Kind=dummy
|
||
MACAddress=12:34:56:78:9a:bc</programlisting>
|
||
</example>
|
||
|
||
</refsect1>
|
||
<refsect1>
|
||
<title>See Also</title>
|
||
<para>
|
||
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
|
||
<citerefentry><refentrytitle>systemd-networkd</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
|
||
<citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>
|
||
</para>
|
||
</refsect1>
|
||
|
||
</refentry>
|