man/networkctl.xml

   1 <?xml version='1.0'?>
   2 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   3   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
   4 <!-- SPDX-License-Identifier: LGPL-2.1+ -->
   5
   6 <refentry id="networkctl" conditional='ENABLE_NETWORKD'
   7           xmlns:xi="http://www.w3.org/2001/XInclude">
   8
   9   <refentryinfo>
  10     <title>networkctl</title>
  11     <productname>systemd</productname>
  12   </refentryinfo>
  13
  14   <refmeta>
  15     <refentrytitle>networkctl</refentrytitle>
  16     <manvolnum>1</manvolnum>
  17   </refmeta>
  18
  19   <refnamediv>
  20     <refname>networkctl</refname>
  21     <refpurpose>Query the status of network links</refpurpose>
  22   </refnamediv>
  23
  24   <refsynopsisdiv>
  25     <cmdsynopsis>
  26       <command>networkctl</command>
  27       <arg choice="opt" rep="repeat">OPTIONS</arg>
  28       <arg choice="plain">COMMAND</arg>
  29       <arg choice="opt" rep="repeat">LINK</arg>
  30     </cmdsynopsis>
  31   </refsynopsisdiv>
  32
  33   <refsect1>
  34     <title>Description</title>
  35
  36     <para><command>networkctl</command> may be used to introspect the
  37     state of the network links as seen by
  38     <command>systemd-networkd</command>.  Please refer to
  39     <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>
  40     for an introduction to the basic concepts, functionality, and
  41     configuration syntax.</para>
  42   </refsect1>
  43
  44   <refsect1>
  45     <title>Commands</title>
  46
  47     <para>The following commands are understood:</para>
  48
  49     <variablelist>
  50       <varlistentry>
  51         <term>
  52           <command>list</command>
  53           <optional><replaceable>PATTERN…</replaceable></optional>
  54         </term>
  55
  56         <listitem>
  57           <para>Show a list of existing links and their status. If one ore more
  58           <replaceable>PATTERN</replaceable>s are specified, only links matching one of them are shown.
  59           If no further arguments are specified shows all links,
  60           otherwise just the specified links. Produces output similar to:
  61
  62           <programlisting>IDX LINK         TYPE     OPERATIONAL SETUP
  63   1 lo           loopback carrier     unmanaged
  64   2 eth0         ether    routable    configured
  65   3 virbr0       ether    no-carrier  unmanaged
  66   4 virbr0-nic   ether    off         unmanaged
  67
  68 4 links listed.</programlisting></para>
  69
  70         <para>The operational status is one of the following:
  71             <variablelist>
  72               <varlistentry>
  73                 <term>missing</term>
  74                 <listitem>
  75                     <para>the device is missing</para>
  76                 </listitem>
  77               </varlistentry>
  78               <varlistentry>
  79                 <term>off</term>
  80                 <listitem>
  81                   <para>the device is powered down</para>
  82                 </listitem>
  83               </varlistentry>
  84               <varlistentry>
  85                 <term>no-carrier</term>
  86                 <listitem>
  87                   <para>the device is powered up, but it does not yet have a carrier</para>
  88                 </listitem>
  89               </varlistentry>
  90               <varlistentry>
  91                 <term>dormant</term>
  92                 <listitem>
  93                   <para>the device has a carrier, but is not yet ready for normal traffic</para>
  94                 </listitem>
  95               </varlistentry>
  96               <varlistentry>
  97                 <term>degraded-carrier</term>
  98                 <listitem>
  99                   <para>for bond or bridge master, one of the bonding or bridge slave network interfaces is
 100                   in off, no-carrier, or dormant state</para>
 101                 </listitem>
 102               </varlistentry>
 103               <varlistentry>
 104                 <term>carrier</term>
 105                 <listitem>
 106                   <para>the link has a carrier, or for bond or bridge master, all bonding or bridge slave
 107                   network interfaces are enslaved to the master.</para>
 108                 </listitem>
 109               </varlistentry>
 110               <varlistentry>
 111                 <term>degraded</term>
 112                 <listitem>
 113                   <para>the link has carrier and addresses valid on the local link configured</para>
 114                 </listitem>
 115               </varlistentry>
 116               <varlistentry>
 117                 <term>enslaved</term>
 118                 <listitem>
 119                   <para>the link has carrier and is enslaved to bond or bridge master network interface</para>
 120                 </listitem>
 121               </varlistentry>
 122               <varlistentry>
 123                 <term>routable</term>
 124                 <listitem>
 125                   <para>the link has carrier and routable address configured</para>
 126                 </listitem>
 127               </varlistentry>
 128             </variablelist>
 129         </para>
 130
 131         <para>The setup status is one of the following:
 132             <variablelist>
 133               <varlistentry>
 134                 <term>pending</term>
 135                 <listitem>
 136                   <para>udev is still processing the link, we don't yet know if we will manage it</para>
 137                 </listitem>
 138               </varlistentry>
 139               <varlistentry>
 140                 <term>failed</term>
 141                 <listitem>
 142                   <para>networkd failed to manage the link</para>
 143                 </listitem>
 144               </varlistentry>
 145               <varlistentry>
 146                 <term>configuring</term>
 147                 <listitem>
 148                   <para>in the process of retrieving configuration or configuring the link</para>
 149                 </listitem>
 150               </varlistentry>
 151               <varlistentry>
 152                 <term>configured</term>
 153                 <listitem>
 154                   <para>link configured successfully</para>
 155                 </listitem>
 156               </varlistentry>
 157               <varlistentry>
 158                 <term>unmanaged</term>
 159                 <listitem>
 160                   <para>networkd is not handling the link</para>
 161                 </listitem>
 162               </varlistentry>
 163               <varlistentry>
 164                 <term>linger</term>
 165                 <listitem>
 166                   <para>the link is gone, but has not yet been dropped by networkd</para>
 167                 </listitem>
 168               </varlistentry>
 169             </variablelist>
 170         </para>
 171         </listitem>
 172       </varlistentry>
 173
 174       <varlistentry>
 175         <term>
 176           <command>status</command>
 177           <optional><replaceable>PATTERN…</replaceable></optional>
 178         </term>
 179
 180         <listitem>
 181           <para>Show information about the specified links: type, state, kernel module driver, hardware and
 182           IP address, configured DNS servers, etc. If one ore more <replaceable>PATTERN</replaceable>s are
 183           specified, only links matching one of them are shown.</para>
 184
 185           <para>When no links are specified, an overall network status is shown. Also see the option
 186           <option>--all</option>.</para>
 187
 188           <para>Produces output similar to:
 189           <programlisting>
 190 ●      State: routable
 191      Address: 10.193.76.5 on eth0
 192               192.168.122.1 on virbr0
 193               169.254.190.105 on eth0
 194               fe80::5054:aa:bbbb:cccc on eth0
 195      Gateway: 10.193.11.1 (CISCO SYSTEMS, INC.) on eth0
 196          DNS: 8.8.8.8
 197               8.8.4.4</programlisting></para>
 198         </listitem>
 199
 200       </varlistentry>
 201
 202       <varlistentry>
 203         <term>
 204           <command>lldp</command>
 205           <optional><replaceable>PATTERN…</replaceable></optional>
 206         </term>
 207
 208         <listitem>
 209           <para>Show discovered LLDP (Link Layer Discovery Protocol) neighbors. If one or more
 210           <replaceable>PATTERN</replaceable>s are specified only neighbors on those interfaces are shown.
 211           Otherwise shows discovered neighbors on all interfaces. Note that for this feature to work,
 212           <varname>LLDP=</varname> must be turned on for the specific interface, see
 213           <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry> for
 214           details.</para>
 215
 216           <para>Produces output similar to:
 217           <programlisting>LINK             CHASSIS ID        SYSTEM NAME      CAPS        PORT ID           PORT DESCRIPTION
 218 enp0s25          00:e0:4c:00:00:00 GS1900           ..b........ 2                 Port #2
 219
 220 Capability Flags:
 221 o - Other; p - Repeater;  b - Bridge; w - WLAN Access Point; r - Router;
 222 t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;
 223 s - Service VLAN, m - Two-port MAC Relay (TPMR)
 224
 225 1 neighbors listed.</programlisting></para>
 226         </listitem>
 227       </varlistentry>
 228
 229       <varlistentry>
 230         <term>
 231           <command>label</command>
 232         </term>
 233
 234         <listitem><para>Show numerical address labels that can be used for address selection.
 235         This is the same information that
 236         <citerefentry project='die-net'><refentrytitle>ip-addrlabel</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 237         shows. See <ulink url="https://tools.ietf.org/html/rfc3484">RFC 3484</ulink>
 238         for a discussion of address labels.</para>
 239
 240         <para>Produces output similar to:
 241         <programlisting>Prefix/Prefixlen                          Label
 242         ::/0                                  1
 243     fc00::/7                                  5
 244     fec0::/10                                11
 245     2002::/16                                 2
 246     3ffe::/16                                12
 247  2001:10::/28                                 7
 248     2001::/32                                 6
 249 ::ffff:0.0.0.0/96                             4
 250         ::/96                                 3
 251        ::1/128                                0</programlisting></para>
 252         </listitem>
 253       </varlistentry>
 254
 255        <varlistentry>
 256         <term>
 257           <command>delete</command>
 258         </term>
 259         <listitem><para>Deletes virtual netdevs. Takes interface name or index number.</para></listitem>
 260       </varlistentry>
 261
 262        <varlistentry>
 263         <term>
 264           <command>up</command>
 265         </term>
 266         <listitem><para>Bring devices up. Takes interface name or index number.</para></listitem>
 267       </varlistentry>
 268
 269        <varlistentry>
 270         <term>
 271           <command>down</command>
 272         </term>
 273         <listitem><para>Bring devices down. Takes interface name or index number.</para></listitem>
 274       </varlistentry>
 275
 276        <varlistentry>
 277         <term>
 278           <command>renew</command>
 279         </term>
 280         <listitem><para>Renew dynamic configurations e.g. addresses received from DHCP server.
 281         Takes interface name or index number.</para></listitem>
 282       </varlistentry>
 283
 284       <varlistentry>
 285         <term>
 286           <command>forcerenew</command>
 287         </term>
 288         <listitem><para>Send a FORCERENEW message to all connected clients, triggering DHCP reconfiguration.
 289         Takes interface name or index number.</para></listitem>
 290       </varlistentry>
 291
 292       <varlistentry>
 293         <term>
 294           <command>reconfigure</command>
 295         </term>
 296         <listitem><para>Reconfigure network interfaces. Takes interface name or index number.</para></listitem>
 297       </varlistentry>
 298
 299       <varlistentry>
 300         <term>
 301           <command>reload</command>
 302         </term>
 303         <listitem><para>Reload <filename>.netdev</filename> and <filename>.network</filename> files.
 304         If a new <filename>.netdev</filename> file is found, then the corresponding netdev is created.
 305         Note that even if an existing <filename>.netdev</filename> is modified or removed,
 306         <command>systemd-networkd</command> does not update or remove the netdev.
 307         If a new, modified or removed <filename>.network</filename> file is found, then all interfaces
 308         which match the file are reconfigured.</para></listitem>
 309       </varlistentry>
 310
 311     </variablelist>
 312   </refsect1>
 313
 314   <refsect1>
 315     <title>Options</title>
 316
 317     <para>The following options are understood:</para>
 318
 319     <variablelist>
 320       <varlistentry>
 321         <term>
 322           <option>-a</option>
 323           <option>--all</option>
 324         </term>
 325
 326         <listitem>
 327           <para>Show all links with <command>status</command>.</para>
 328         </listitem>
 329       </varlistentry>
 330
 331       <varlistentry>
 332         <term>
 333           <option>-s</option>
 334           <option>--stats</option>
 335         </term>
 336
 337         <listitem>
 338           <para>Show link statistics with <command>status</command>.</para>
 339         </listitem>
 340       </varlistentry>
 341
 342       <varlistentry>
 343         <term><option>-l</option></term>
 344         <term><option>--full</option></term>
 345
 346         <listitem>
 347           <para>Do not ellipsize the output.</para>
 348         </listitem>
 349       </varlistentry>
 350
 351       <varlistentry>
 352         <term><option>-n</option></term>
 353         <term><option>--lines=</option></term>
 354
 355         <listitem>
 356           <para>When used with <command>status</command>, controls the number of journal lines to show,
 357           counting from the most recent ones. Takes a positive integer argument. Defaults to 10.</para>
 358         </listitem>
 359       </varlistentry>
 360
 361       <xi:include href="standard-options.xml" xpointer="help" />
 362       <xi:include href="standard-options.xml" xpointer="version" />
 363       <xi:include href="standard-options.xml" xpointer="no-legend" />
 364       <xi:include href="standard-options.xml" xpointer="no-pager" />
 365
 366     </variablelist>
 367   </refsect1>
 368
 369   <refsect1>
 370     <title>Exit status</title>
 371
 372     <para>On success, 0 is returned, a non-zero failure code otherwise.</para>
 373   </refsect1>
 374
 375   <refsect1>
 376     <title>See Also</title>
 377     <para>
 378       <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
 379       <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
 380       <citerefentry><refentrytitle>systemd.netdev</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
 381       <citerefentry project='die-net'><refentrytitle>ip</refentrytitle><manvolnum>8</manvolnum></citerefentry>
 382     </para>
 383   </refsect1>
 384 </refentry>