networkctl

NETWORKCTL(1) networkctl NETWORKCTL(1)

NAME
networkctl - Query the status of network links

SYNOPSIS
networkctl [OPTIONS...] COMMAND [LINK...]

DESCRIPTION
networkctl may be used to introspect the state of the network links as
seen by systemd-networkd. Please refer to systemd-networkd.service(8)
for an introduction to the basic concepts, functionality, and
configuration syntax.

COMMANDS
The following commands are understood:

list [PATTERN...]
Show a list of existing links and their status. If one ore more
PATTERNs are specified, only links matching one of them are shown.
If no further arguments are specified shows all links, otherwise
just the specified links. Produces output similar to:

IDX LINK TYPE OPERATIONAL SETUP
1 lo loopback carrier unmanaged
2 eth0 ether routable configured
3 virbr0 ether no-carrier unmanaged
4 virbr0-nic ether off unmanaged

4 links listed.

The operational status is one of the following:

missing
the device is missing

off
the device is powered down

no-carrier
the device is powered up, but it does not yet have a carrier

dormant
the device has a carrier, but is not yet ready for normal
traffic

degraded-carrier
for bond or bridge master, one of the bonding or bridge slave
network interfaces is in off, no-carrier, or dormant state

carrier
the link has a carrier, or for bond or bridge master, all
bonding or bridge slave network interfaces are enslaved to the
master.

degraded
the link has carrier and addresses valid on the local link
configured

enslaved
the link has carrier and is enslaved to bond or bridge master
network interface

routable
the link has carrier and routable address configured

The setup status is one of the following:

pending
udev is still processing the link, we don't yet know if we will
manage it

failed
networkd failed to manage the link

configuring
in the process of retrieving configuration or configuring the
link

configured
link configured successfully

unmanaged
networkd is not handling the link

linger
the link is gone, but has not yet been dropped by networkd

status [PATTERN...]
Show information about the specified links: type, state, kernel
module driver, hardware and IP address, configured DNS servers,
etc. If one ore more PATTERNs are specified, only links matching
one of them are shown.

When no links are specified, an overall network status is shown.
Also see the option --all.

Produces output similar to:

State: routable
Address: 10.193.76.5 on eth0
192.168.122.1 on virbr0
169.254.190.105 on eth0
fe80::5054:aa:bbbb:cccc on eth0
Gateway: 10.193.11.1 (CISCO SYSTEMS, INC.) on eth0
DNS: 8.8.8.8
8.8.4.4

lldp [PATTERN...]
Show discovered LLDP (Link Layer Discovery Protocol) neighbors. If
one or more PATTERNs are specified only neighbors on those
interfaces are shown. Otherwise shows discovered neighbors on all
interfaces. Note that for this feature to work, LLDP= must be
turned on for the specific interface, see systemd.network(5) for
details.

Produces output similar to:

LINK CHASSIS ID SYSTEM NAME CAPS PORT ID PORT DESCRIPTION
enp0s25 00:e0:4c:00:00:00 GS1900 ..b........ 2 Port #2

Capability Flags:
o - Other; p - Repeater; b - Bridge; w - WLAN Access Point; r - Router;
t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;
s - Service VLAN, m - Two-port MAC Relay (TPMR)

1 neighbors listed.

label
Show numerical address labels that can be used for address
selection. This is the same information that ip-addrlabel(8) shows.
See RFC 3484[1] for a discussion of address labels.

Produces output similar to:

Prefix/Prefixlen Label
::/0 1
fc00::/7 5
fec0::/10 11
2002::/16 2
3ffe::/16 12
2001:10::/28 7
2001::/32 6
::ffff:0.0.0.0/96 4
::/96 3
::1/128 0

delete
Deletes virtual netdevs. Takes interface name or index number.

renew
Renew dynamic configurations e.g. addresses received from DHCP
server. Takes interface name or index number.

reconfigure
Reconfigure network interfaces. Takes interface name or index
number.

reload
Reload .netdev and .network files. If a new .netdev file is found,
then the corresponding netdev is created. Note that even if an
existing .netdev is modified or removed, systemd-networkd does not
update or remove the netdev. If a new, modified or removed .network
file is found, then all interfaces which match the file are
reconfigured.

OPTIONS
The following options are understood:

-a --all
Show all links with status.

-s --stats
Show link statistics with status.

-l, --full
Do not ellipsize the output.

-n, --lines=
When used with status, controls the number of journal lines to
show, counting from the most recent ones. Takes a positive integer
argument. Defaults to 10.

-h, --help
Print a short help text and exit.

--version
Print a short version string and exit.

--no-legend
Do not print the legend, i.e. column headers and the footer with
hints.

--no-pager
Do not pipe output into a pager.

EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.

SEE ALSO
systemd-networkd.service(8), systemd.network(5), systemd.netdev(5),
ip(8)

NOTES
1. RFC 3484
https://tools.ietf.org/html/rfc3484

systemd 245 NETWORKCTL(1)

networkctl

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