1SYSTEMD-NETWORKD.SERVICE(8)systemd-networkd.serviceSYSTEMD-NETWORKD.SERVICE(8)
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NAME

6       systemd-networkd.service, systemd-networkd - Network manager
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SYNOPSIS

9       systemd-networkd.service
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11       /usr/lib/systemd/systemd-networkd
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DESCRIPTION

14       systemd-networkd is a system service that manages networks. It detects
15       and configures network devices as they appear, as well as creating
16       virtual network devices.
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18       To configure low-level link settings independently of networks, see
19       systemd.link(5).
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21       systemd-networkd will create network devices based on the configuration
22       in systemd.netdev(5) files, respecting the [Match] sections in those
23       files.
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25       systemd-networkd will manage network addresses and routes for any link
26       for which it finds a .network file with an appropriate [Match] section,
27       see systemd.network(5). For those links, it will flush existing network
28       addresses and routes when bringing up the device. Any links not matched
29       by one of the .network files will be ignored. It is also possible to
30       explicitly tell systemd-networkd to ignore a link by using
31       Unmanaged=yes option, see systemd.network(5).
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33       When systemd-networkd exits, it generally leaves existing network
34       devices and configuration intact. This makes it possible to transition
35       from the initramfs and to restart the service without breaking
36       connectivity. This also means that when configuration is updated and
37       systemd-networkd is restarted, netdev interfaces for which
38       configuration was removed will not be dropped, and may need to be
39       cleaned up manually.
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41       systemd-networkd may be introspected and controlled at runtime using
42       networkctl(1).
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CONFIGURATION FILES

45       The configuration files are read from the files located in the system
46       network directory /usr/lib/systemd/network, the volatile runtime
47       network directory /run/systemd/network and the local administration
48       network directory /etc/systemd/network.
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50       Networks are configured in .network files, see systemd.network(5), and
51       virtual network devices are configured in .netdev files, see
52       systemd.netdev(5).
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SEE ALSO

55       networkctl(1), systemd(1), systemd.link(5), systemd.network(5),
56       systemd.netdev(5), systemd-networkd-wait-online.service(8), systemd-
57       network-generator.service(8)
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61systemd 246                                        SYSTEMD-NETWORKD.SERVICE(8)
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