SYSTEMD-NETWORKD.SERVICE(8)           SYSTEMD-NETWORKD.SERVICE(8)

     NAME
          systemd-networkd.service, systemd-networkd - Network manager

     SYNOPSIS
          systemd-networkd.service

          /lib/systemd/systemd-networkd

     DESCRIPTION
          systemd-networkd is a system service that manages networks.
          It detects and configures network devices as they appear, as
          well as creating virtual network devices.

          To configure low-level link settings independently of
          networks, see systemd.link(5).

          systemd-networkd will create network devices based on the
          configuration in systemd.netdev(5) files, respecting the
          [Match] sections in those files.

          systemd-networkd will manage network addresses and routes
          for any link for which it finds a .network file with an
          appropriate [Match] section, see systemd.network(5). For
          those links, it will flush existing network addresses and
          routes when bringing up the device. Any links not matched by
          one of the .network files will be ignored. It is also
          possible to explicitly tell systemd-networkd to ignore a
          link by using Unmanaged=yes option, see systemd.network(5).

          When systemd-networkd exits, it generally leaves existing
          network devices and configuration intact. This makes it
          possible to transition from the initramfs and to restart the
          service without breaking connectivity. This also means that
          when configuration is updated and systemd-networkd is
          restarted, netdev interfaces for which configuration was
          removed will not be dropped, and may need to be cleaned up
          manually.

          systemd-networkd may be introspected and controlled at
          runtime using networkctl(1).

     CONFIGURATION FILES
          The configuration files are read from the files located in
          the system network directory /lib/systemd/network, the
          volatile runtime network directory /run/systemd/network and
          the local administration network directory
          /etc/systemd/network.

          Networks are configured in .network files, see
          systemd.network(5), and virtual network devices are

     Page 1                     systemd 247          (printed 5/24/22)

     SYSTEMD-NETWORKD.SERVICE(8)           SYSTEMD-NETWORKD.SERVICE(8)

          configured in .netdev files, see systemd.netdev(5).

     SEE ALSO
          networkctl(1), systemd(1), systemd.link(5),
          systemd.network(5), systemd.netdev(5), systemd-networkd-
          wait-online.service(8), systemd-network-generator.service(8)

     Page 2                     systemd 247          (printed 5/24/22)