Provided by: systemd_229-4ubuntu21.31_amd64 

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).
Network configurations applied before networkd is started are not removed, and static configuration
applied by networkd is not removed when networkd exits. Dynamic configuration applied by networkd may
also optionally be left in place on shutdown. This ensures restarting networkd does not cut the network
connection, and, in particular, that it is safe to transition between the initrd and the real root, and
back.
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
configured in .netdev files, see systemd.netdev(5).
SEE ALSO
systemd(1), systemd.link(5), systemd.network(5), systemd.netdev(5), systemd-networkd-wait-
online.service(8)
systemd 229 SYSTEMD-NETWORKD.SERVICE(8)