The two features that provide headend resiliency for Cisco AnyConnect clients are AnyConnect Auto Reconnect and AnyConnect Always On. AnyConnect Auto Reconnect allows the client to attempt to automatically reconnect to the same or a different headend in the event of a session disruption. AnyConnect Always On allows the client to remain connected to the headend at all times, even if the client is idle or the connection is interrupted. Additionally, AnyConnect Backup Servers allow the client to connect to a backup headend if the primary headend is unreachable, and ASA failover provides an additional layer of redundancy for the headend itself.