ip-link man page on Slackware

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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.

       VXLAN Type Support
	      For a link of type VXLAN the following additional arguments are
	      supported:

	      ip link add DEVICE type vxlan id ID [ dev PHYS_DEV ] [ group
	      IPADDR ] [ local IPADDR ] [ ttl TTL ] [ tos TOS ] [ port MIN MAX
	      ] [ [no]learning ] [ [no]proxy ] [ [no]rsc ] [ [no]l2miss ] [
	      [no]l3miss ]

		      id VNI - specifies the VXLAN Network Identifer (or VXLAN
		      Segment Identifier) to use.

		      dev PHYS_DEV - specifies the physical device to use for
		      tunnel endpoint communication.

		      group IPADDR - specifies the multicast IP address to
		      join.

		      local IPADDR - specifies the source IP address to use in
		      outgoing packets.

		      ttl TTL - specifies the TTL value to use in outgoing
		      packets.

		      tos TOS - specifies the TOS value to use in outgoing
		      packets.

		      port MIN MAX - specifies the range of port numbers to
		      use as UDP source ports to communicate to the remote
		      VXLAN tunnel endpoint.

		      [no]learning - specifies if unknown source link layer
		      addresses and IP addresses are entered into the VXLAN
		      device forwarding database.

		      [no]rsc - specifies if route short circuit is turned on.

		      [no]proxy - specifies ARP proxy is turned on.

		      [no]l2miss - specifies if netlink LLADDR miss notifica‐
		      tions are generated.

		      [no]l3miss - specifies if netlink IP ADDR miss notifica‐
		      tions are generated.

   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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