Network Time Server screen

Use this screen to specify the time source that the Avaya media server uses to set the time of day. You can synchronize the system clock used on server 1 and server 2 to Coordinated Universal Time (UTC) via a connection to a network time server. If you do not have access to a network time server, you can synchronize server 1 and server 2 to use the local clock on server 1.  

This topic covers:

Specify the Time Source

To specify the time source for the Avaya media server:

  1. This computer synchronizes with a duplicated server.  
    This configuration uses its local clock as its time source and server 1 synchronizes with server 2.

    Note:
     The time on server 2 must be set within five minutes to server 1 to ensure synchronization. When local synchronization is used between servers, you can set the date command on server 1 to adjust for time drift (varying from the original setting), and as a result time server 2 automatically updates to the time on server 1 within about 15 minutes after this change. It is not necessary for you to again complete the Configuration screens to restart the NTP service unless the time adjustment exceeds the 15-minute limit.      

  2. Use these Network Time Servers.
    Caution: You should have already set the media server's time within five minutes to NTS time, date and time zone. If you need to set the time source after the configuration has been submitted, then set the time configuration without changing any values to ensure the NTP service restarts.

Complete the following fields with the appropriate information if you select Use Network Time Servers

Specify whether the Avaya media server is to support multicast timing messages:

 Typically, multicast is not used when network time servers are specified.

  1. Additional keys (optional): To encrypt the messages between an NTS and the Avaya media server, valid key numbers must be provided by your LAN administrator.

  2. Provide a keys file: If you specify keys in steps 2 or 3, you must provide a file named keys.install to allow the media server to communicate with the NTS.

Note:  After NTP is enabled, time changes greater than 15 minutes will disrupt the synchronization with the NTS and NTP will shut down. You need to set the server's clock now so that synchronization can work.

  1. If you do not install a key file, click Continue.

Providing the keys.install file

If encryption between the NTS and Avaya media server is to be used for additional security, you must provide a keys.install file that specifies for each key:

The keys file can be installed in several ways: