x SuSE Linux 13.1-RELEASE x
x SuSE Linux 13.1-RELEASEx
IP-LINK(8) Linux IP-LINK(8)
NAME
ip-link - network device configuration
SYNOPSIS
ip [ OPTIONS ] link { COMMAND | help }
OPTIONS := { -V[ersion] | -s[tatistics] | -r[esolve] | -f[amily] { inet
| inet6 | ipx | dnet | link } | -o[neline] }
ip link add [ link DEVICE ] [ name ] NAME
[ txqueuelen PACKETS ]
[ address LLADDR ] [ broadcast LLADDR ]
[ mtu MTU ]
[ numtxqueues QUEUE_COUNT ] [ numrxqueues QUEUE_COUNT ]
type TYPE [ ARGS ]
TYPE := [ bridge | can | dummy | ifb | ipoib | macvlan | vcan | veth |
vlan | vxlan | ip6tnl | ipip | sit ]
ip link delete DEVICE type TYPE [ ARGS ]
ip link set { DEVICE | group GROUP } { up | down | arp { on | off } |
promisc { on | off } |
allmulticast { on | off } |
dynamic { on | off } |
multicast { on | off } |
txqueuelen PACKETS |
name NEWNAME |
address LLADDR | broadcast LLADDR |
mtu MTU |
netns PID |
netns NETNSNAME |
alias NAME |
vf NUM [ mac LLADDR ] [ vlan VLANID [ qos VLAN-QOS ] ] [ rate
TXRATE ] [ spoofchk { on | off } ] |
master DEVICE
nomaster }
ip link show [ DEVICE | group GROUP ]
DESCRIPTION
ip link add - add virtual link
link DEVICE
specifies the physical device to act operate on.
NAME specifies the name of the new virtual device.
TYPE specifies the type of the new device.
Link types:
bridge - Ethernet Bridge device
can - Controller Area Network interface
dummy - Dummy network interface
ifb - Intermediate Functional Block device
ipoib - IP over Infiniband device
macvlan - Virtual interface base on link layer address
(MAC)
vcan - Virtual Local CAN interface
veth - Virtual ethernet interface
vlan - 802.1q tagged virtual LAN interface
vxlan - Virtual eXtended LAN
ip6tnl - Virtual tunnel interface IPv4|IPv6 over IPv6
ipip - Virtual tunnel interface IPv4 over IPv4
sit - Virtual tunnel interface IPv6 over IPv4
numtxqueues QUEUE_COUNT
specifies the number of transmit queues for new device.
numrxqueues QUEUE_COUNT
specifies the number of receive queues for new device.
ip link delete - delete virtual link
DEVICE specifies the virtual device to act operate on. TYPE specifies
the type of the device.
dev DEVICE
specifies the physical device to act operate on.
ip link set - change device attributes
dev DEVICE
DEVICE specifies network device to operate on. When configuring
SR-IOV Virtual Function (VF) devices, this keyword should spec-
ify the associated Physical Function (PF) device.
group GROUP
GROUP has a dual role: If both group and dev are present, then
move the device to the specified group. If only a group is
specified, then the command operates on all devices in that
group.
up and down
change the state of the device to UP or DOWN.
arp on or arp off
change the NOARP flag on the device.
multicast on or multicast off
change the MULTICAST flag on the device.
dynamic on or dynamic off
change the DYNAMIC flag on the device.
name NAME
change the name of the device. This operation is not recom-
mended if the device is running or has some addresses already
configured.
txqueuelen NUMBER
txqlen NUMBER
change the transmit queue length of the device.
mtu NUMBER
change the MTU of the device.
address LLADDRESS
change the station address of the interface.
broadcast LLADDRESS
brd LLADDRESS
peer LLADDRESS
change the link layer broadcast address or the peer address when
the interface is POINTOPOINT.
netns PID
move the device to the network namespace associated with the
process PID.
netns NETNSNAME
move the device to the network namespace associated with name
NETNSNAME.
alias NAME
give the device a symbolic name for easy reference.
group GROUP
specify the group the device belongs to. The available groups
are listed in file /etc/iproute2/group.
vf NUM specify a Virtual Function device to be configured. The associ-
ated PF device must be specified using the dev parameter.
mac LLADDRESS - change the station address for the spec-
ified VF. The vf parameter must be specified.
vlan VLANID - change the assigned VLAN for the specified
VF. When specified, all traffic sent from the VF will be
tagged with the specified VLAN ID. Incoming traffic will
be filtered for the specified VLAN ID, and will have all
VLAN tags stripped before being passed to the VF. Set-
ting this parameter to 0 disables VLAN tagging and fil-
tering. The vf parameter must be specified.
qos VLAN-QOS - assign VLAN QOS (priority) bits for the
VLAN tag. When specified, all VLAN tags transmitted by
the VF will include the specified priority bits in the
VLAN tag. If not specified, the value is assumed to be
0. Both the vf and vlan parameters must be specified.
Setting both vlan and qos as 0 disables VLAN tagging and
filtering for the VF.
rate TXRATE - change the allowed transmit bandwidth, in
Mbps, for the specified VF. Setting this parameter to 0
disables rate limiting. The vf parameter must be speci-
fied.
spoofchk on|off - turn packet spoof checking on or off
for the specified VF.
master DEVICE
set master device of the device (enslave device).
nomaster
unset master device of the device (release device).
Warning: If multiple parameter changes are requested, ip aborts immedi-
ately after any of the changes have failed. This is the only case when
ip can move the system to an unpredictable state. The solution is to
avoid changing several parameters with one ip link set call.
ip link show - display device attributes
dev NAME (default)
NAME specifies the network device to show. If this argument is
omitted all devices in the default group are listed.
group GROUP
GROUP specifies what group of devices to show.
up only display running interfaces.
EXAMPLES
ip link show
Shows the state of all network interfaces on the system.
ip link set dev ppp0 mtu 1400
Change the MTU the ppp0 device.
ip link add link eth0 name eth0.10 type vlan id 10
Creates a new vlan device eth0.10 on device eth0.
ip link delete dev eth0.10
Removes vlan device.
SEE ALSO
ip(8)
AUTHOR
Original Manpage by Michail Litvak <mci@owl.openwall.com>
iproute2 13 Dec 2012 IP-LINK(8)
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