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[Sysname] interface bridge-aggregation 2
[Sysname-Bridge-Aggregation2] link-aggregation mode dynamic
[Sysname-Bridge-Aggregation2] mad enable
[Sysname-Bridge-Aggregation2] quit
# Assign ports GigabitEthernet 1/4/0/2, GigabitEthernet 2/4/0/2, GigabitEthernet 3/3/0/1, and
GigabitEthernet 4/3/0/1 to the aggregate interface for LACP MAD detection.
[Sysname] interface gigabitethernet 1/4/0/2
[Sysname-GigabitEthernet1/4/0/2] port link-aggregation group 2
[Sysname-GigabitEthernet1/4/0/2] quit
[Sysname] interface gigabitethernet 2/4/0/1
[Sysname-GigabitEthernet2/4/0/1] port link-aggregation group 2
[Sysname-GigabitEthernet2/4/0/1] quit
[Sysname] interface gigabitethernet 3/3/0/1
[Sysname-GigabitEthernet3/3/0/1] port link-aggregation group 2
[Sysname-GigabitEthernet3/3/0/1] quit
[Sysname] interface gigabitethernet 4/3/0/1
[Sysname-GigabitEthernet4/3/0/1] port link-aggregation group 2
[Sysname-GigabitEthernet4/3/0/1] quit
6. Configure Device E as the intermediate switch
Device E needs to act as the intermediate switch to forward and process extended LACPDUs exchanged
between the member switches for MAD detection.
CAUTION:
If the intermediate switch is in an IRF fabric, you must assign this fabric a different domain ID than the
LACP MAD-enabled IRF fabric.
# Create a dynamic aggregate interface.
<Sysname> system-view
[Sysname] interface bridge-aggregation 2
[Sysname-Bridge-Aggregation2] link-aggregation mode dynamic
[Sysname-Bridge-Aggregation2] quit
# Assign ports GigabitEthernet 4/0/1, GigabitEthernet 4/0/2, GigabitEthernet 4/0/3, and
GigabitEthernet 4/0/4 to the aggregate interface for LACP MAD detection.
[Sysname] interface gigabitethernet 4/0/1
[Sysname-GigabitEthernet4/0/1] port link-aggregation group 2
[Sysname-GigabitEthernet4/0/1] quit
[Sysname] interface gigabitethernet 4/0/2
[Sysname-GigabitEthernet4/0/2] port link-aggregation group 2
[Sysname-GigabitEthernet4/0/2] quit
[Sysname] interface gigabitethernet 4/0/3
[Sysname-GigabitEthernet4/0/3] port link-aggregation group 2
[Sysname-GigabitEthernet4/0/3] quit
[Sysname] interface gigabitethernet 4/0/4
[Sysname-GigabitEthernet4/0/4] port link-aggregation group 2
[Sysname-GigabitEthernet4/0/4] quit
7. Troubleshoot the IRF when the MAD mechanism detects errors
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