User guide

Chapter 5
Setup and Configuration
RUGGEDCOM ROS
User Guide
166 Configuring NTP
Parameter Description
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Section 5.6.2
Configuring NTP
ROS may be configured to refer periodically to a specified NTP server to correct any accumulated drift in the on-
board clock. ROS will also serve time via the Simple Network Time Protocol (SNTP) to hosts that request it.
Two NTP servers (primary and backup) may be configured for the device. The primary server is contacted first for
each attempt to update the system time. If the primary server fails to respond, the backup server is contacted. If
either the primary or backup server fails to respond, an alarm is raised.
To configure either the primary or backup NTP server, do the following:
1. Navigate to Administration » System Time Manager » Configure NTP Server. The NTP Server table
appears.
Figure 119: NTP Server Table
2. Select either Primary or Backup. The NTP Server form appears.
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Figure 120: NTP Server Form
1. Server Box 2. IP Address Box 3. Update Period Box 4. Apply Button 5. Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Server Synopsis: Any 8 characters
Default: Primary
This field tells whether this configuration is for a Primary or a Backup Server.