From the online help:
"
Endpoint Context Servers
Policy Manager provides the ability to collect endpoint profile information from different types of Aruba IAPs and RAPs via Aruba activate. Policy Manager supports Aruba Activate, Palo Alto Networks' Firewall and Panorama, and MDM (Mobile Device Management) from Aurwatch, JAMF, Maas360, MobileIron, and SOTI.
The mobile device management platforms run on MDM servers. These servers provision mobile devices to configure connectivity settings, enforce security policies, restore lost data, and other administrative services. Information gathered from mobile devices can include policy breaches, data consumption, and existing configuration settings.
Endpoint context servers are listed and managed at Administration > External Servers > Endpoint Context Servers."