Cisco Cisco Identity Services Engine Software

Each ISE node in a deployment can assume more than one of the three personas (Administration, Policy 
Service, or Monitoring) at a time. By contrast, each Inline Posture node operates only in a dedicated 
gatekeeping role.

The following table lists the recommended minimum and maximum number of nodes/personas in a 
distributed deployment:

One primary Administration node and one secondary Administration node

One primary Monitoring node, with an optional secondary node

One or more Policy Service nodes

One primary Inline Posture node, with an optional secondary node

You can change the persona of a node. See the “Setting Up ISE in a Distributed Environment” chapter 
of the

 for information on how to configure these 

personas on Cisco ISE nodes.

This section describes the following topics:

For more details on Cisco ISE hardware platforms and installation, see the

Admin 

1

2 (Configured as an HA pair)

Monitor

1

2 (Configured as an HA pair)

Policy Service

1

2 — when all personas (Admin/Monitor/Policy 
Service) are on same appliance

5 — when Admin and Monitor personas are on same 
appliance

40 — when each persona is on a dedicated appliance

Inline Posture

0

10k for maximum NADs per deployment