A mobility domain is a group of Aruba managed devices among which wireless users can roam without losing their IP address. Mobility domains are not tied with the Mobility Master; thus, it is possible for a user to roam between managed devices as long as all the managed devices belong to the same Mobility Master.
You enable and configure mobility domains only on Aruba managed devices. No additional software or configuration is required on wireless clients to allow roaming within the domain.
Topics in this
Understanding Aruba Mobility Architecture
Configuring Advanced Mobility Functions
Understanding Bridge Mode Mobility Deployments