To federate Presence Services with another XMPP server, an instance of an XMPP Federation x service attribute group must be administered, where x is a value from 1 to 4. In some conditions, one instance can be shared for more than one federated server.
This procedure uses the sample values in the Single-server Cluster Federated with Ignite Openfire example values
table in the Key customer configuration information for XMPP federation
section. x refers to a value from 1 to 4.