If the master device in an E-Trunk fails, enabling the E-Trunk sequence number check function can prevent an attacker from attacking the backup device using E-Trunk packets obtained from the master device.
The system view is displayed.
The E-Trunk view is displayed.
The E-Trunk sequence number check function is enabled on the E-Trunk.
By default, the E-Trunk sequence number check function is disabled.
The sequence enable command must be run on both the master and backup devices in an E-Trunk. Otherwise, packets are dropped due to failure of the E-Trunk sequence number check, causing dual master devices in the E-Trunk.