Information About CAPWAP LAG Support
Link aggregation (LAG) simplifies controller configuration because you no longer require to configure primary and secondary ports for each interface. If any of the controller ports fail, traffic is automatically migrated to one of the other ports. As long as at least one controller port is functioning, the system continues to operate, access points remain connected to the network, and wireless clients continue to send and receive data.
The CAPWAP LAG support feature is applicable for access points that support multiple ethernet ports for CAPWAP.
The 11AC APs with dual ethernet ports require the CAPWAP AP LAG support for data channel.
Cisco Aironet 1850, 2800, and 3800 Series APs' second Ethernet port is used as a link aggregation port, by default. It is possible to use this LAG port as an RLAN port when LAG is disabled.
The following APs use LAG port as an RLAN port: