Avaya S8500 Manuel D’Utilisation

With NTP, you can specify one, two, or three network time servers to provide the accurate time 
of day data to the clocks on the media servers. The network time servers, in turn, get their 
source timing from one of several highly accurate time services that are available on the 
Internet.

To use a network time server, the NTP service must be enabled. The Avaya Installation Wizard 
prompts you to enable the NTP service. If you do not use the Installation Wizard, use the 
Configure Server function on the Maintenance Web Interface to configure the network time 
servers.

1. From the Maintenance Web Interface, under Server Configuration, click Configure 

Server.

2. Click Continue on the Review Notices page and the Backup Up Data page.

3. On the "Specify how you want to use this wizard" page, select Configure individual 

services and then click Continue.

4. In the menu on the left side of the Configure Server page, click Configure Timer Server.

5. Enter the NTS information on the Configure Time Server screen and click Change.

6. On the main menu, under Security, click Firewall.

7. In the "Output from Server" column, select ntp 123/udp.

Note:

It is not necessary to enable the "Input to Server" ntp service. If this service is 
already enabled, you do not need to disable it.

When the Avaya Installation Wizard prompts you for information about the network time 
servers, enter the DNS name or the IP address for the primary network time server and the 
secondary and the tertiary time servers if any. If you enter a DNS name instead of an IP address 
for the network time server, you must specify the IP address of the DNS server. For more 
information, see 

For more information about NTP, see RFC 958.