The Identity Services Engine (ISE) in a Cisco SD-Access solution plays a crucial role in security and access control. It acts as a centralized policy management platform that enables the creation and enforcement of access policies for endpoint devices. ISE uses information such as user identity, device type, and other context to dynamically map endpoints to specific groups, thus defining the access levels and permissions for each device within the network. This ensures that only authorized users and devices can access certain network resources, enhancing the overall security posture.
References := Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR)