To deploy a Duplex Communication Manager, install using the same Duplex profile on two different hosts. Ensure that the hosts resides on two different clusters. The Duplex Communication Manager configuration requires an extra Ethernet port for duplication link. Therefore, the virtual machine should have at least two network connection type vSwitches. The first Ethernet port is used for all administration or call processing traffic and the second Ethernet port is used for the duplication link traffic.
Before you start the virtual machine, you must change the Communication Manager settings to configure the second NIC.
Note:
For the Communication Manager Duplex:
If you are using a 2600 MHz (2.6 GHZ) processor, the Communication Manager supports 41000 endpoints.
If you are using a 2200 MHz (2.2 GHZ) processor, the Communication Manager supports 30000 endpoints.
