ExtremeXOS 31.6 introduces active redundancy support for LLDP on stacking.
LLDP information (for example, LLDP neighbors, Fabric Attach Elements and Assignments) is continuously synchronized from the Primary to the Backup nodes. In case of Failover, the Backup becomes the Primary node, with all existing LLDP information retained. Existing LLDP and Fabric Attach neighbors are not re-learned. Because Fabric Attach Assignments are retained, there is no impact on the traffic during Failover.
Note
Statistics information is not synchronized to the Backup. LLDP and Fabric Attach statistics start from empty on Failover.