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By default, the LACP MAD detection is disabled.
This command is only effective to a dynamic aggregation interface, so execute this command on a
dynamic aggregation interface.
Examples
# Enable LACP MAD detection on Layer 2 dynamic aggregation interface 1.
<Sysname> system-view
[Sysname] interface bridge-aggregation 1
[Sysname-Bridge-Aggregation1] mad enable
mad exclude interface
Syntax
mad exclude interface interface-type interface-number
undo mad exclude interface interface-type interface-number
View
System view
Default Level
3: Manage level
Parameters
interface-type interface-number: Specifies port type and port number.
Description
Use the mad exclude interface command to specify the reserved ports, that is, the ports that are not
disabled when the device is in the recovery state.
Use the undo mad exclude interface command to restore the default.
By default, no reserved port is specified, which means all service ports are automatically disabled
when the IRF virtual device is in the recovery state.
A link failure causes an IRF virtual device to be divided into two or more IRF virtual devices with the
same global configuration, which may cause network failure. Therefore, the multi-active detection
(MAD) mechanism is introduced to solve this problem:
When an IRF virtual device partitions, the MAD mechanism can detect the presence of multiple active
IRF virtual devices. Only one active IRF virtual device is reserved, the others enter the recovery state.
All service ports on the IRF virtual devices that are in the recovery state are disabled. You can use
this command to specify which ports on the devices in the recovery state should be reserved. You are
recommended to disable all ports except for the port for telnetting and the port used for MAD
detection.
During the failure recovery, the devices in the recovery state reboot and join the IRF virtual device
again, the disabled ports automatically recover. To restore devices in the recovery state to the normal
state so that the disabled ports automatically recover, use the mad restore command.
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