Cisco Email Security Appliance

ESA FAQ: What is the maximum number of appliances supported in a Centralized Management Cluster?

Document ID: 117921

Updated: Jul 11, 2014

Contributed by Chris Haag, Robert Sherwin, Cisco TAC Engineers.



This document describes the maximum number of appliances supported in a Centralized Managment Cluster.


The information in this document is based on the Cisco Email Security Appliance and all versions of AsyncOS.

What is the maximum number of machines supported in a Centralized Management Cluster?

In order to achieve optimal performance, Cisco recommends that users limit any single cluster to 20 appliances or fewer.

Updated: Jul 11, 2014
Document ID: 117921