man/networkctl.xml

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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

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<refentry id="networkctl" conditional='ENABLE_NETWORKD'
          xmlns:xi="http://www.w3.org/2001/XInclude">

  <refentryinfo>
    <title>networkctl</title>
    <productname>systemd</productname>
  </refentryinfo>

  <refmeta>
    <refentrytitle>networkctl</refentrytitle>
    <manvolnum>1</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>networkctl</refname>
    <refpurpose>Query the status of network links</refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <cmdsynopsis>
      <command>networkctl</command>
      <arg choice="opt" rep="repeat">OPTIONS</arg>
      <arg choice="plain">COMMAND</arg>
      <arg choice="opt" rep="repeat">LINK</arg>
    </cmdsynopsis>
  </refsynopsisdiv>

  <refsect1>
    <title>Description</title>

    <para><command>networkctl</command> may be used to introspect the
    state of the network links as seen by
    <command>systemd-networkd</command>.  Please refer to
    <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
    for an introduction to the basic concepts, functionality, and
    configuration syntax.</para>
  </refsect1>

  <refsect1>
    <title>Options</title>

    <para>The following options are understood:</para>

    <variablelist>
      <varlistentry>
        <term>
          <option>-a</option>
          <option>--all</option>
        </term>

        <listitem>
          <para>Show all links with <command>status</command>.</para>
        </listitem>
      </varlistentry>

      <xi:include href="standard-options.xml" xpointer="help" />
      <xi:include href="standard-options.xml" xpointer="version" />
      <xi:include href="standard-options.xml" xpointer="no-legend" />
      <xi:include href="standard-options.xml" xpointer="no-pager" />

    </variablelist>
  </refsect1>

  <refsect1>
    <title>Commands</title>

    <para>The following commands are understood:</para>

    <variablelist>
      <varlistentry>
        <term>
          <command>list</command>
          <optional><replaceable>LINK…</replaceable></optional>
        </term>

        <listitem>
          <para>Show a list of existing links and their status. If no further arguments are specified shows all links,
          otherwise just the specified links. Produces output similar to:

          <programlisting>IDX LINK         TYPE     OPERATIONAL SETUP
  1 lo           loopback carrier     unmanaged
  2 eth0         ether    routable    configured
  3 virbr0       ether    no-carrier  unmanaged
  4 virbr0-nic   ether    off         unmanaged

4 links listed.</programlisting></para>

        <para>The operational status is one of the following:
            <variablelist>
              <varlistentry>
                <term>off</term>
                <listitem>
                  <para>the device is powered down</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>no-carrier</term>
                <listitem>
                  <para>the device is powered up, but it does not yet have a carrier</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>dormant</term>
                <listitem>
                  <para>the device has a carrier, but is not yet ready for normal traffic</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>carrier</term>
                <listitem>
                  <para>the link has a carrier</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>degraded</term>
                <listitem>
                  <para>the link has carrier and addresses valid on the local link configured</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>routable</term>
                <listitem>
                  <para>the link has carrier and routable address configured</para>
                </listitem>
              </varlistentry>
            </variablelist>
        </para>

        <para>The setup status is one of the following:
            <variablelist>
              <varlistentry>
                <term>pending</term>
                <listitem>
                  <para>udev is still processing the link, we don't yet know if we will manage it</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>failed</term>
                <listitem>
                  <para>networkd failed to manage the link</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>configuring</term>
                <listitem>
                  <para>in the process of retrieving configuration or configuring the link</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>configured</term>
                <listitem>
                  <para>link configured successfully</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>unmanaged</term>
                <listitem>
                  <para>networkd is not handling the link</para>
                </listitem>
              </varlistentry>
              <varlistentry>
                <term>linger</term>
                <listitem>
                  <para>the link is gone, but has not yet been dropped by networkd</para>
                </listitem>
              </varlistentry>
            </variablelist>
        </para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term>
          <command>status</command>
          <optional><replaceable>LINK…</replaceable></optional>
        </term>

        <listitem>
          <para>Show information about the specified links: type,
          state, kernel module driver, hardware and IP address,
          configured DNS servers, etc.</para>

          <para>When no links are specified, an overall network status is shown. Also see the option
          <option>--all</option>.</para>

          <para>Produces output similar to:
          <programlisting>
●      State: routable
     Address: 10.193.76.5 on eth0
              192.168.122.1 on virbr0
              169.254.190.105 on eth0
              fe80::5054:aa:bbbb:cccc on eth0
     Gateway: 10.193.11.1 (CISCO SYSTEMS, INC.) on eth0
         DNS: 8.8.8.8
              8.8.4.4</programlisting></para>
        </listitem>

      </varlistentry>

      <varlistentry>
        <term>
          <command>lldp</command>
          <optional><replaceable>LINK…</replaceable></optional>
        </term>

        <listitem>
          <para>Show discovered LLDP (Link Layer Discovery Protocol) neighbors. If one or more link names are specified
          only neighbors on those interfaces are shown. Otherwise shows discovered neighbors on all interfaces. Note
          that for this feature to work, <varname>LLDP=</varname> must be turned on for the specific interface, see
          <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry> for
          details.</para>

          <para>Produces output similar to:
          <programlisting>LINK             CHASSIS ID        SYSTEM NAME      CAPS        PORT ID           PORT DESCRIPTION
enp0s25          00:e0:4c:00:00:00 GS1900           ..b........ 2                 Port #2

Capability Flags:
o - Other; p - Repeater;  b - Bridge; w - WLAN Access Point; r - Router;
t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;
s - Service VLAN, m - Two-port MAC Relay (TPMR)

1 neighbors listed.</programlisting></para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term>
          <command>label</command>
        </term>

        <listitem><para>Show numerical address labels that can be used for address selection.
        This is the same information that
        <citerefentry><refentrytitle>ip-addrlabel</refentrytitle><manvolnum>8</manvolnum></citerefentry>
        shows. See <ulink url="https://tools.ietf.org/html/rfc3484">RFC 3484</ulink>
        for a discussion of address labels.</para>

        <para>Produces output similar to:
        <programlisting>Prefix/Prefixlen                          Label
        ::/0                                  1
    fc00::/7                                  5
    fec0::/10                                11
    2002::/16                                 2
    3ffe::/16                                12
 2001:10::/28                                 7
    2001::/32                                 6
::ffff:0.0.0.0/96                             4
        ::/96                                 3
       ::1/128                                0</programlisting></para>
        </listitem>
      </varlistentry>

    </variablelist>
  </refsect1>

  <refsect1>
    <title>Exit status</title>

    <para>On success, 0 is returned, a non-zero failure code otherwise.</para>
  </refsect1>

  <refsect1>
    <title>See Also</title>
    <para>
      <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry><refentrytitle>systemd.netdev</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
      <citerefentry project='die-net'><refentrytitle>ip</refentrytitle><manvolnum>8</manvolnum></citerefentry>
    </para>
  </refsect1>
</refentry>