man/networkctl.xml

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   6   SPDX-License-Identifier: LGPL-2.1+
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   8
   9 <refentry id="networkctl" conditional='ENABLE_NETWORKD'
  10           xmlns:xi="http://www.w3.org/2001/XInclude">
  11
  12   <refentryinfo>
  13     <title>networkctl</title>
  14     <productname>systemd</productname>
  15   </refentryinfo>
  16
  17   <refmeta>
  18     <refentrytitle>networkctl</refentrytitle>
  19     <manvolnum>1</manvolnum>
  20   </refmeta>
  21
  22   <refnamediv>
  23     <refname>networkctl</refname>
  24     <refpurpose>Query the status of network links</refpurpose>
  25   </refnamediv>
  26
  27   <refsynopsisdiv>
  28     <cmdsynopsis>
  29       <command>networkctl</command>
  30       <arg choice="opt" rep="repeat">OPTIONS</arg>
  31       <arg choice="plain">COMMAND</arg>
  32       <arg choice="opt" rep="repeat">LINK</arg>
  33     </cmdsynopsis>
  34   </refsynopsisdiv>
  35
  36   <refsect1>
  37     <title>Description</title>
  38
  39     <para><command>networkctl</command> may be used to introspect the
  40     state of the network links as seen by
  41     <command>systemd-networkd</command>.  Please refer to
  42     <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  43     for an introduction to the basic concepts, functionality, and
  44     configuration syntax.</para>
  45   </refsect1>
  46
  47   <refsect1>
  48     <title>Options</title>
  49
  50     <para>The following options are understood:</para>
  51
  52     <variablelist>
  53       <varlistentry>
  54         <term>
  55           <option>-a</option>
  56           <option>--all</option>
  57         </term>
  58
  59         <listitem>
  60           <para>Show all links with <command>status</command>.</para>
  61         </listitem>
  62       </varlistentry>
  63
  64       <xi:include href="standard-options.xml" xpointer="help" />
  65       <xi:include href="standard-options.xml" xpointer="version" />
  66       <xi:include href="standard-options.xml" xpointer="no-legend" />
  67       <xi:include href="standard-options.xml" xpointer="no-pager" />
  68
  69     </variablelist>
  70   </refsect1>
  71
  72   <refsect1>
  73     <title>Commands</title>
  74
  75     <para>The following commands are understood:</para>
  76
  77     <variablelist>
  78       <varlistentry>
  79         <term>
  80           <command>list</command>
  81           <optional><replaceable>PATTERN…</replaceable></optional>
  82         </term>
  83
  84         <listitem>
  85           <para>Show a list of existing links and their status. If one ore more
  86           <replaceable>PATTERN</replaceable>s are specified, only links matching one of them are shown.
  87           If no further arguments are specified shows all links,
  88           otherwise just the specified links. Produces output similar to:
  89
  90           <programlisting>IDX LINK         TYPE     OPERATIONAL SETUP
  91   1 lo           loopback carrier     unmanaged
  92   2 eth0         ether    routable    configured
  93   3 virbr0       ether    no-carrier  unmanaged
  94   4 virbr0-nic   ether    off         unmanaged
  95
  96 4 links listed.</programlisting></para>
  97
  98         <para>The operational status is one of the following:
  99             <variablelist>
 100               <varlistentry>
 101                 <term>off</term>
 102                 <listitem>
 103                   <para>the device is powered down</para>
 104                 </listitem>
 105               </varlistentry>
 106               <varlistentry>
 107                 <term>no-carrier</term>
 108                 <listitem>
 109                   <para>the device is powered up, but it does not yet have a carrier</para>
 110                 </listitem>
 111               </varlistentry>
 112               <varlistentry>
 113                 <term>dormant</term>
 114                 <listitem>
 115                   <para>the device has a carrier, but is not yet ready for normal traffic</para>
 116                 </listitem>
 117               </varlistentry>
 118               <varlistentry>
 119                 <term>degraded-carrier</term>
 120                 <listitem>
 121                   <para>for bond or bridge master, one of the bonding or bridge slave network interfaces is
 122                   in off, no-carrier, or dormant state</para>
 123                 </listitem>
 124               </varlistentry>
 125               <varlistentry>
 126                 <term>carrier</term>
 127                 <listitem>
 128                   <para>the link has a carrier, or for bond or bridge master, all bonding or bridge slave
 129                   network interfaces are enslaved to the master.</para>
 130                 </listitem>
 131               </varlistentry>
 132               <varlistentry>
 133                 <term>degraded</term>
 134                 <listitem>
 135                   <para>the link has carrier and addresses valid on the local link configured</para>
 136                 </listitem>
 137               </varlistentry>
 138               <varlistentry>
 139                 <term>enslaved</term>
 140                 <listitem>
 141                   <para>the link has carrier and is enslaved to bond or bridge master network interface</para>
 142                 </listitem>
 143               </varlistentry>
 144               <varlistentry>
 145                 <term>routable</term>
 146                 <listitem>
 147                   <para>the link has carrier and routable address configured</para>
 148                 </listitem>
 149               </varlistentry>
 150             </variablelist>
 151         </para>
 152
 153         <para>The setup status is one of the following:
 154             <variablelist>
 155               <varlistentry>
 156                 <term>pending</term>
 157                 <listitem>
 158                   <para>udev is still processing the link, we don't yet know if we will manage it</para>
 159                 </listitem>
 160               </varlistentry>
 161               <varlistentry>
 162                 <term>failed</term>
 163                 <listitem>
 164                   <para>networkd failed to manage the link</para>
 165                 </listitem>
 166               </varlistentry>
 167               <varlistentry>
 168                 <term>configuring</term>
 169                 <listitem>
 170                   <para>in the process of retrieving configuration or configuring the link</para>
 171                 </listitem>
 172               </varlistentry>
 173               <varlistentry>
 174                 <term>configured</term>
 175                 <listitem>
 176                   <para>link configured successfully</para>
 177                 </listitem>
 178               </varlistentry>
 179               <varlistentry>
 180                 <term>unmanaged</term>
 181                 <listitem>
 182                   <para>networkd is not handling the link</para>
 183                 </listitem>
 184               </varlistentry>
 185               <varlistentry>
 186                 <term>linger</term>
 187                 <listitem>
 188                   <para>the link is gone, but has not yet been dropped by networkd</para>
 189                 </listitem>
 190               </varlistentry>
 191             </variablelist>
 192         </para>
 193         </listitem>
 194       </varlistentry>
 195
 196       <varlistentry>
 197         <term>
 198           <command>status</command>
 199           <optional><replaceable>PATTERN…</replaceable></optional>
 200         </term>
 201
 202         <listitem>
 203           <para>Show information about the specified links: type, state, kernel module driver, hardware and
 204           IP address, configured DNS servers, etc. If one ore more <replaceable>PATTERN</replaceable>s are
 205           specified, only links matching one of them are shown.</para>
 206
 207           <para>When no links are specified, an overall network status is shown. Also see the option
 208           <option>--all</option>.</para>
 209
 210           <para>Produces output similar to:
 211           <programlisting>
 212 ●      State: routable
 213      Address: 10.193.76.5 on eth0
 214               192.168.122.1 on virbr0
 215               169.254.190.105 on eth0
 216               fe80::5054:aa:bbbb:cccc on eth0
 217      Gateway: 10.193.11.1 (CISCO SYSTEMS, INC.) on eth0
 218          DNS: 8.8.8.8
 219               8.8.4.4</programlisting></para>
 220         </listitem>
 221
 222       </varlistentry>
 223
 224       <varlistentry>
 225         <term>
 226           <command>lldp</command>
 227           <optional><replaceable>PATTERN…</replaceable></optional>
 228         </term>
 229
 230         <listitem>
 231           <para>Show discovered LLDP (Link Layer Discovery Protocol) neighbors. If one or more
 232           <replaceable>PATTERN</replaceable>s are specified only neighbors on those interfaces are shown.
 233           Otherwise shows discovered neighbors on all interfaces. Note that for this feature to work,
 234           <varname>LLDP=</varname> must be turned on for the specific interface, see
 235           <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry> for
 236           details.</para>
 237
 238           <para>Produces output similar to:
 239           <programlisting>LINK             CHASSIS ID        SYSTEM NAME      CAPS        PORT ID           PORT DESCRIPTION
 240 enp0s25          00:e0:4c:00:00:00 GS1900           ..b........ 2                 Port #2
 241
 242 Capability Flags:
 243 o - Other; p - Repeater;  b - Bridge; w - WLAN Access Point; r - Router;
 244 t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;
 245 s - Service VLAN, m - Two-port MAC Relay (TPMR)
 246
 247 1 neighbors listed.</programlisting></para>
 248         </listitem>
 249       </varlistentry>
 250
 251       <varlistentry>
 252         <term>
 253           <command>label</command>
 254         </term>
 255
 256         <listitem><para>Show numerical address labels that can be used for address selection.
 257         This is the same information that
 258         <citerefentry><refentrytitle>ip-addrlabel</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 259         shows. See <ulink url="https://tools.ietf.org/html/rfc3484">RFC 3484</ulink>
 260         for a discussion of address labels.</para>
 261
 262         <para>Produces output similar to:
 263         <programlisting>Prefix/Prefixlen                          Label
 264         ::/0                                  1
 265     fc00::/7                                  5
 266     fec0::/10                                11
 267     2002::/16                                 2
 268     3ffe::/16                                12
 269  2001:10::/28                                 7
 270     2001::/32                                 6
 271 ::ffff:0.0.0.0/96                             4
 272         ::/96                                 3
 273        ::1/128                                0</programlisting></para>
 274         </listitem>
 275       </varlistentry>
 276
 277     </variablelist>
 278   </refsect1>
 279
 280   <refsect1>
 281     <title>Exit status</title>
 282
 283     <para>On success, 0 is returned, a non-zero failure code otherwise.</para>
 284   </refsect1>
 285
 286   <refsect1>
 287     <title>See Also</title>
 288     <para>
 289       <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 290       <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
 291       <citerefentry><refentrytitle>systemd.netdev</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
 292       <citerefentry project='die-net'><refentrytitle>ip</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 293     </para>
 294   </refsect1>
 295 </refentry>