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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 
Do not configure ND MAD together with LACP MAD, because they handle collisions differently. 
Do not configure ND MAD on VLAN-interface 1. 
If one IRF fabric uses another IRF fabric as the intermediate device for ND MAD, you must assign 
the two IRF fabrics different MAD 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 MAD domain ID. If 
you do not want to change the current MAD domain ID, press enter at the prompt. 
An IRF fabric has only one IRF MAD domain ID. You can change the IRF MAD domain ID by using 
the following commands: irf domain, mad enable, mad arp enable, or mad nd enable. The IRF 
MAD 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 
mad restore 
Use mad restore to restore the normal MAD state of the IRF fabric in Recovery state.  
Syntax 
mad restore 
Views 
System view