ip-link 命令

常用示例

说明

ip link manages network devices. It can list interfaces, change their state and parameters (MAC address, MTU, alias, promiscuous mode), and create or delete virtual links such as bridges, bonds, VLANs, VXLANs, dummies, veth pairs, and tun/tap devices. It is part of the iproute2 suite that replaces the older ifconfig utility.

参数

show _device_

Display interface information. Without _device_, all interfaces are shown. Combine with -s for statistics, -d for detailed driver info.

set _device_

Modify properties of an existing interface.

add _link DEV_ name _NAME_ type _TYPE_

Create a virtual interface of the given type (bridge, vlan, veth, dummy, bond, vxlan, ...).

delete _device_

Remove a virtual interface.

up | down

Bring the interface administratively up or down.

address _LLADDR_

Set the link-layer (MAC) address. Usually requires the interface to be down first.

mtu _BYTES_

Set the Maximum Transmission Unit.

alias _NAME_

Set a human-readable interface description.

promisc on | off

Enable or disable promiscuous mode.

multicast on | off

Enable or disable multicast reception.

arp on | off

Enable or disable ARP on the interface.

master _DEVICE_

Enslave the interface to a master (bridge or bond).

nomaster

Detach the interface from its master.

txqueuelen _N_

Set the transmit queue length.

netns _PID_ | _NAME_

Move the interface into the given network namespace.