Ubuntu Manpage: networkctl - Query the status of network links

Provided by: systemd_251.4-1ubuntu7_amd64

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 or 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

initialized
udev has processed the link, but we don't yet know if we will manage it

configuring
in the process of retrieving configuration or configuring the link

configured
link configured successfully

unmanaged
networkd is not handling the link

failed
networkd failed to manage 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 or 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
Online state: online
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

In the overall network status, the online state depends on the individual online state
of all required links. Managed links are required for online by default. In this case,
the online state is one of the following:

unknown
all links have unknown online status (i.e. there are no required links)

offline
all required links are offline

partial
some, but not all, required links are online

online
all required links are online

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

up DEVICE...
Bring devices up. Takes interface name or index number.

down DEVICE...
Bring devices down. Takes interface name or index number.

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

forcerenew DEVICE...
Send a FORCERENEW message to all connected clients, triggering DHCP reconfiguration.
Takes interface name or index number.

reconfigure DEVICE...
Reconfigure network interfaces. Takes interface name or index number. Note that this
does not reload .netdev or .network corresponding to the specified interface. So, if
you edit config files, it is necessary to call networkctl reload first to apply new
settings.

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.

       --json=MODE
           Shows output formatted as JSON. Expects one of "short" (for the shortest possible
           output without any redundant whitespace or line breaks), "pretty" (for a pretty
           version of the same, with indentation and line breaks) or "off" (to turn off JSON
           output, the default).

       -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.

NOTES

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

NAME

SYNOPSIS

DESCRIPTION

COMMANDS

OPTIONS

EXIT STATUS

SEE ALSO

NOTES