Call Management System (CMS) connects to the server through the servers Processor Ethernet (PE) interface. During server failover, a survivable core server communicates with CMS through the PE interface of the survivable core server. Here, the survivable core server sends the events to Call Management System. When the control network fails, CMS fails, resulting in the data loss.
Important:
An explanation of how the survivable core server and the survivable remote server interact with CMS does not apply to the High Availability (HA) offer. Using HA, CMS configuration for a survivable core server or a survivable remote server involves specific constraints and limitations.
To understand the limitations, contact Avaya Communication Solutions and Integration (CSI) at http://csi.avaya.com.
