Summary
This document describes how to cluster a number of Application Gateways.
Requirements
Before you create a cluster, verify that the following tasks are complete:
• Install and configure each Application Gateway that is to be a member of the cluster.
• The Application Gateways in a cluster can straddle networks (be on different subnets).
• Configure the IP/Distinguished Name map source for each Application Gateway.
• Complete the Voice Office configuration for each Application Gateway. You must configure each Application Gateway with the Broadcast Server URL.
Background
• To create a cluster, add Application Gateway IP addresses to the Network > Cluster page. Because there are no primary or secondary Application Gateways in a cluster, you can configure the cluster from any Application Gateway.
• When you add an Application Gateway to a cluster, the Application Gateway that is processing the request broadcasts the cluster configuration file to all other cluster members. Thus, each Application Gateway becomes aware of the new cluster member.
Note: The administration password on the Application Gateway used to synchronize a cluster must match the password on the Application Gateway used to create the cluster.
Procedure
To add an Application Gateway to a cluster:
1. In the Administration Tool, go to the Network > Cluster page.
2. Enter the IP address of the Application Gateway to be added to the cluster.
Note: Be sure to also add the IP address of the Application Gateway from which you are creating the cluster.
3. Click Add Member.
4. When you have completed adding members, click Sync Cluster.
Note: When you synchronize a cluster, the Application Gateway broadcasts the cluster information to all cluster members.
