Cisco Unity Connection Messaging Interface CUMI API -- Scaling Applications Using Notifications

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Contents


About Notifications

Cisco Unity Connection Provides two types of Notifications

  • COMET Notifications. Available through the CUMI. It is a subscription to an individual mailbox's events.
  • Bulk Notification via the CUNI. The subscriptions can be created for multiple mailboxes at the same time.

Scalability

Cisco has tested the notification APIs under load to provide guidance on how they can be scaled. It is advised that development teams created solutions using these APIs validate their appliactions as the numbers can change based on the hardware performance as well as other loads on the system.

Test Hardware

The results are based on tests done on a 20,000 user OVA Virtual machine.

Test Results

CUMI COMET notifications only , a single server performs acceptably with up to 10,000 users.
CUNI Notifications only, a single server performs acceptably with up to 6000 users. Each individual subscription is for 500 users or lesser.
Combined CUMI COMET and CUNI Notifications , a single server performs acceptably with up to 5000 users. Each individual CUNI subscription is for 500 users or lesser.

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