Key Features
The Cisco Identity Services Engine (ISE) is a market-leading security policy management platform that unifies and automates secure access control. The Device Administration license, often associated with TACACS+ for network administrator authentication/authorization, is required per Policy Service Node (PSN) running this service. Since ISE 3.x, licenses are timed and tier-based (Essentials, Advantage, Premier). Virtual appliances require a Node VM license per node, size dependent.