Enable flush message receiving on GigabitEthernet 4/0/1 and GigabitEthernet 4/0/2.
[SwitchD-mtlk-group1] interface gigabitethernet 4/0/1
[SwitchD-GigabitEthernet4/0/1] smart-link flush enable
[SwitchD-GigabitEthernet4/0/1] interface gigabitethernet 4/0/2
[SwitchD-GigabitEthernet4/0/2] smart-link flush enable
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