CUP Cluster Migration

IM and Presence Service (previously known as CUP) was set up in a cluster separate from the Cisco Unified Communications Manager cluster. This configuration is called a multicluster configuration. However, the IM and Presence Service servers are set up as part of the Unified CM cluster itself, in what is called a single-cluster configuration. The single-cluster configuration correctly represents the Unified CM cluster with its IM and Presence Service servers in the management layer. This configuration eliminates the confusion that multicluster configurations can cause for administrators when Cisco Prime Collaboration Assurance and other tools show these servers in different clusters.

Multi-Cluster vs. Single Cluster Configuration

multi-cluster-config

Although the use of multicluster configurations is deprecated and highly discouraged, VOSS-4-UC continues to support multicluster configurations for backward compatibility and upgrades. Service providers are encouraged to use the single-cluster configuration for new clusters. Convert existing multicluster configurations to single-cluster using the migration tool under Device Management.