Which reference is entered on the Communication Manager Server Role page visible in the License file?

The reference that is entered on the Communication Manager Server Role page and is visible in the License file is the System Manager MAC address. This is significant because the MAC address uniquely identifies the server in a network, and it is crucial for the licensing process. When configuring Communication Manager, the MAC address allows the system to verify that the license is valid for the specific physical hardware on which it is installed.

In practice, when setting up and managing an Avaya environment, the MAC address is used to ensure compliance with licensing agreements and is an important factor in troubleshooting and maintaining the system's integrity. The license file itself usually contains various identifiers, including the MAC address, which plays a critical role in the licensing framework of Avaya Aura solutions.