You can enable state flapping suppression on an Eth-Trunk interface to prevent the Eth-Trunk interface from alternating between Up and Down due to member interface state flapping or received incorrect packets.
By default, an Eth-Trunk interface in LACP mode is enabled to suppress invalid MAC addresses in Ethernet headers of received LACPDUs from flapping, in which case the source MAC addresses of the LACPDUs and system ID are checked. To disable the check, run the lacp dampening unexpected-mac disable command to disable MAC address flapping suppression in Ethernet headers of LACPDUs.
Run system-view
The system view is displayed.
Run interface eth-trunk trunk-id
The Eth-Trunk interface view is displayed.
Run lacp dampening state-flapping disable
The state flapping suppression function is enabled on the Eth-Trunk interface.
Run commit
The configuration is committed.
Run system-view
The system view is displayed.
Run interface eth-trunk trunk-id
The Eth-Trunk interface view is displayed.
Run lacp dampening unexpected-mac
The invalid-MAC-based state flapping suppression function is disabled on the Eth-Trunk interface.
Run commit
The configuration is committed.