R3303-HP HSR6800 Routers IRF Command Reference

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Usage guidelines
ARP MAD detects multi-active collisions by using extended gratuitous ARP packets.
You can set up ARP MAD links between neighbor IRF members or between each IRF member device and
an intermediate device.
If the intermediate device is also in an IRF fabric, make sure the two IRF fabrics have different IRF domain
IDs to avoid false detection of IRF splits.
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.
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
mad bfd enable
Use mad bfd enable to enable BFD MAD.
Use undo mad bfd enable to disable BFD MAD.
Syntax
mad bfd enable
undo mad bfd enable
Default
BFD MAD is disabled.
Views
VLAN interface view
Default command level
3: Manage level
Usage guidelines
BFD MAD uses the BFD protocol for detecting multi-active collisions, and can work with or without
intermediate devices.
When you configure BFD MAD, follow these guidelines:
Cate
g
or
y
Restrictions and
g
uidelines
BFD MAD VLAN
• Do not enable BFD MAD on VLAN-interface 1.
• If an intermediate device is used, assign the ports of BFD MAD links to the
BFD MAD VLAN on the device.
• The IRF fabrics in a network must use different BFD MAD VLANs.