Mad Enable - HP 12500 series Command Reference Manual

Do not bind the VLAN interface to any VPN. The MAD function is mutually exclusive with VPN.
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To avoid anomalies, do not use any other command than the mad ip address command to
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configure IP addresses on the BFD MAD-enabled VLAN interface. For example, an IP address
configured with the ip address command or a VRRP virtual IP address can cause problems.
If an intermediate device is used, you must assign the ports of the BFD MAD links to the BFD
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MAD VLAN on the intermediate device.
Examples
# Enable BFD MAD on VLAN-interface 3.
<Sysname> system-view
[Sysname] interface vlan-interface 3
[Sysname-Vlan-interface3] mad bfd enable

mad enable

Use mad enable to enable LACP MAD.
Use undo mad enable to disable LACP MAD.
Syntax
mad enable
undo mad enable
Default
LACP MAD is disabled.
Views
Aggregate interface view
Predefined user roles
network-admin
mdc-admin
Usage guidelines
LACP MAD handles collisions in a different way than BFD MAD and ARP MAD. To avoid conflicts, do
not enable LACP MAD together with BFD MAD or ARP MAD in an IRF fabric. However, you can use
BFD MAD and ARP MAD together.
LACP MAD uses extended LACP packets for detecting multi-active collisions and requires an
intermediate HP device that also supports LACP MAD packets.
You must set up a dynamic link aggregation group that spans all IRF member devices between the
IRF fabric and the intermediate device. To enable dynamic link aggregation, configure the
link-aggregation mode dynamic command on the aggregate interface.
If the intermediate device is also in an IRF fabric, make sure the two IRF fabrics have different
domain IDs to avoid false detection of IRF splits.
You can enter the domain ID when you use the mad enable command. If the IRF fabric already has
a unique domain ID in accordance with the network planning, press Enter to skip the step.
The IRF domain ID takes effect on all MDCs.
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