HP 6125XLG R2306-HP 6125XLG Blade Switch IRF Command Reference - Page 23

mad enable, Examples, Syntax, Default, Views, Predefined user roles, Usage guidelines

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Category MAD IP address Restrictions and guidelines • To avoid problems, only use the mad ip address command to configure IP addresses on the BFD MAD-enabled VLAN interface. Do not configure an IP address with the ip address command or configure a VRRP virtual address on the BFD MAD-enabled VLAN interface. • All MAD IP addresses on the BFD MAD-enabled VLAN interface must be on the same subnet. Examples # Enable BFD MAD on VLAN-interface 3. 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 Usage guidelines LACP MAD handles collisions in a different way than BFD MAD, ARP MAD, and ND MAD. To avoid conflicts, do not enable LACP MAD together with any of those mechanisms in an IRF fabric. However, you can use BFD MAD, ARP MAD, and ND MAD together. LACP MAD uses extended LACP packets for detecting multi-active collisions and requires an intermediate device. 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 an IRF fabric, make sure the two IRF fabrics have different domain IDs for correct split detection. False detection causes IRF split. When you use the mad 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. 20

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20
Category
Restrictions and guidelines
MAD IP address
•
To avoid problems, only use the
mad ip address
command to configure IP
addresses on the BFD MAD-enabled VLAN interface. Do not configure an IP
address with the
ip address
command or configure a VRRP virtual address on
the BFD MAD-enabled VLAN interface.
•
All MAD IP addresses on the BFD MAD-enabled VLAN interface must be on
the same subnet.
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
Usage guidelines
LACP MAD handles collisions in a different way than BFD MAD, ARP MAD, and ND MAD. To avoid
conflicts, do not enable LACP MAD together with any of those mechanisms in an IRF fabric. However,
you can use BFD MAD, ARP MAD, and ND MAD together.
LACP MAD uses extended LACP packets for detecting multi-active collisions and requires an intermediate
device.
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 an IRF fabric, make sure the two IRF fabrics have different domain IDs
for correct split detection. False detection causes IRF split.
When you use the
mad 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.