mad arp enable

Use mad arp enable to enable ARP MAD.

Use undo mad arp enable to disable ARP MAD.

Syntax

mad arp enable

undo mad arp enable

Default

ARP MAD is disabled.

Views

VLAN interface view

Predefined user roles

network-admin

Usage guidelines

ARP MAD detects multi-active collisions by using extended ARP packets.

Do not configure ARP MAD on VLAN-interface 1.

You can use ARP MAD with BFD MAD and ND MAD, but not with LACP MAD.

You can set up ARP MAD links between neighbor IRF members, or between each IRF member device and an intermediate device.

If one IRF fabric uses another IRF fabric as the intermediate device for ARP MAD, you must assign the two IRF fabrics different domain IDs for correct split detection. False detection causes IRF split.

When you use the mad arp enable command, the system prompts you to enter a domain ID. If you do not want to change the current domain ID, press enter at the prompt.

	NOTE: An IRF fabric has only one IRF domain ID. You can change the IRF domain ID by using the following commands: irf domain, mad enable, mad arp enable, or mad nd enable. The IRF domain IDs configured by using these commands overwrite each other.

Examples

# Enable ARP MAD on VLAN-interface 3.

<Sysname> system-view
[Sysname] interface vlan-interface 3
[Sysname-Vlan-interface3] mad arp enable
You need to assign a domain ID (range: 0-4294967295)
[Current domain is: 0]: 1
The assigned  domain ID is: 1

Related commands

irf domain