mad nd enable

Use mad nd enable to enable ND MAD.

Use undo mad nd enable to disable ND MAD.

Syntax

mad nd enable

undo mad nd enable

Default

ND MAD is disabled.

Views

VLAN interface view

Predefined user roles

network-admin

Usage guidelines

ND MAD uses extended NS packets of the IPv6 ND protocol to detect multi-active collisions.

You can use ND MAD with ARP MAD.

Do not configure ND MAD together with LACP MAD, because they handle collisions differently.

Do not configure ND MAD together with BFD MAD. ND MAD requires the spanning tree feature, but BFD MAD is mutually exclusive with the spanning tree feature.

Do not configure ND MAD on VLAN-interface 1.

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

If one IRF fabric uses another IRF fabric as the intermediate device for ND 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 nd 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 ND MAD on VLAN-interface 3.

<Sysname> system-view
[Sysname] interface vlan-interface 3
[Sysname-Vlan-interface3] mad nd 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