What is a reason to configure LAG on a Cisco WLC?

Link Aggregation (LAG) on a Cisco Wireless LAN Controller (WLC) bundles multiple physical Ethernet links into a single logical link. This increases the total bandwidth available between the WLC and the connected switch, thereby increasing the available throughput. It also provides redundancy, as traffic can fail over to remaining links if one link fails. Stateful failover between WLCs is achieved through mobility groups and AP failover mechanisms, not LAG. Encrypting management frames is typically done using management frame protection (MFP) or secure protocols like SSH/HTTPS, not LAG. LAG requires all bundled ports on the switch to be configured identically (e.g., same VLANs, speed, duplex), so it does not allow for different Layer 2 configurations.