Ethernet ports on a CMS server

Last Updated : Jul 25, 2025 |
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Each CMS HA server ideally includes a second Ethernet card. When two Ethernet ports are available, the provisioning process uses the first, built-in port to connect to the customer LAN or public network. Reserve the second Ethernet port for the Communication Manager system link.
The following image shows an ideal HA configuration for a single-ACD system.
Figure: Local Communication Manager system configuration image
An image for ideal High Availability configuration for a single-ACD system
Note:
Customer networks frequently require a different LAN setup than the ideal configuration shown above due to the presence of multiple ACDs connected to the CMS server. For information about alternate LAN configurations, see Avaya Call Management System and Communication Manager Connections, Administration, and Troubleshooting.