18
(To leave the existing filename unchanged, press the enter key):
flash:/startup.cfg exists, overwrite? [Y/N]:y
Validating file. Please wait............................
Saved the current configuration to mainboard device successfully.
# Activate the IRF port.
[Sysname] irf-port-configuration active
mad arp enable
Use
mad arp enable
to enable ARP MAD.
Use
undo mad arp enable
to disable ARP MAD.
Syntax
mad arp enable
undo mad arp enable
Default
ARP MAD is disabled.
Views
Management Ethernet interface view
VLAN interface view
Predefined user roles
network-admin
Usage guidelines
Do not configure ARP MAD together with LACP MAD or BFD MAD, because they handle collisions
differently.
When you configure ARP MAD on a VLAN interface, follow these restrictions and guidelines:
Category Restrictions
and
guidelines
ARP MAD VLAN
•
Do not enable ARP MAD on VLAN-interface 1.
•
If you are using an intermediate device, perform the following tasks:
{
On the IRF fabric and the intermediate device, create a VLAN for
ARP MAD.
{
On the IRF fabric and the intermediate device, assign the ports of
ARP MAD links to the ARP MAD VLAN.
{
On the IRF fabric, create a VLAN interface for the ARP MAD VLAN.
•
As a best practice, do not use the ARP MAD VLAN for any other
purposes.
ARP MAD and feature
configuration
If an intermediate device is used, make sure the following requirements are
met:
•
Run the spanning tree feature between the IRF fabric and the
intermediate device to ensure that there is only one ARP MAD link in
forwarding state. For more information about the spanning tree feature
and its configuration, see
Layer 2—LAN Switching Configuration Guide
.
•
Enable the IRF fabric to change its bridge MAC address as soon as the
address owner leaves.
•
If the intermediate device is also an IRF fabric, assign the two IRF fabrics
different domain IDs for correct split detection.
