What describes inter-controller roaming?

Inter-controller roaming involves a client moving between access points (APs) that are managed by different Wireless LAN Controllers (WLCs). This type of roaming is essential in environments where a seamless network experience is expected while moving throughout different coverage areas. During inter-controller roaming, a client may initially connect to an AP managed by one WLC, and as they move, they might need to switch to an AP managed by another WLC, which necessitates coordination between the two controllers.

In this scenario, it is vital that the client maintains its session and associates with the new AP smoothly. Although the client connects to the new AP, it remains registered to its original WLC during the transition to ensure minimal disruption. This coordination is crucial for maintaining session integrity, particularly for applications sensitive to latency and service outages.

The combination of these characteristics defines inter-controller roaming, confirming that both moving between APs managed by different WLCs and clients remaining registered to the original WLC during the roam are integral aspects of this process. This explanation highlights why the choice encompassing both points accurately captures the essence of inter-controller roaming in enterprise wireless networks.