AP and User Redundancy Methods

Aruba supports the following AP and user redundancy methods:

• Controller Clustering—Cluster is a combination of multiple managed devices working together to provide high availability to all the clients and ensure service continuity when a failover occurs. More information on Controller Clustering and load balancing are covered in the chapter, Controller Clustering
• AP High Availability Overview—The High Availability WLANWireless Local Area Network. WLAN is a 802.11 standards-based LAN that the users access through a wireless connection. redundancy solution enables campus APsCampus APs are used in private networks where APs connect over private links (LAN, WLAN, WAN or MPLS) and terminate directly on controllers. Campus APs are deployed as part of the indoor campus solution in enterprise office buildings, warehouses, hospitals, universities, and so on. to seamlessly failover to the standby controllers upon losing connectivity with the active controller. This significantly reduces the AP downtime.
• VRRP Redundancy—VRRPVirtual Router Redundancy Protocol. VRRP is an election protocol that dynamically assigns responsibility for a virtual router to one of the VRRP routers on a LAN. redundancy enables APs to failover to a backup controller when the AP's master becomes unavailable.