Lucent Technologies P550 - Manual (Page 80)

Configuring the Cajun P550 Switch (Layer 2 & Layer 3)
3 -34 Cajun P550/P220 Switch Operation Guide
When you enable SNTP, you are required to set your time zone and the rule or dates of
Summer Time Hours followed by your location. For information about setting your time
zone, refer to “Setting One-Time Summer Time Hours”. For information about setting
Summer Time Hours, refer to “Setting Summer Time Hours”.
To enable SNTP:
1. In the System Information section of the Web Agent window, click System
Clock. The System Clock dialog box opens.
2. In the Clock Options section, click Simple Network Time Protocol (SNTP).
The SNTP Client Configuration dialog box opens.
3. From the Enable State pull-down menu, select Enable.
4. In the Server IP Address field, enter the IP address of the switch for which you
enable SNTP.
5. Click Apply. SNTP is enabled for the switch.
Setting Summer Time Hours
Summer Time Hours, also referred to as Daylight Savings Time (DST), is the strategy of
moving clocks ahead to provide greater amounts of daylight in the afternoon and to
standardize time with other parts of the world. In many parts of the world, the Summer
Time Hours algorithm is based on a standardized rule. For example, in the Western
hemisphere, the rule used by most locations in Canada, Mexico, and the United States is
to set clocks forward by one hour at 2:00 a.m. on the first Sunday in April and back an
hour at 2:00 a.m. on the first Sunday in October annually. Many countries in Europe
and Asia follow similar rules. The offset, or amount of time by which the clock is set
forward or backward, varies from country to country.
Many parts of the world follow a one-time change of Summer Time Hours. When you
configure the switch for these locations, you reset the clock by specifying a scheduled
time and date.
Note: If you upgrade the Cajun P550 or P220 switch from a previous version, your
local time settings are saved as Greenwich Mean Time values. Ensure that you
change the Summer Time Hours Algorithm before you set the clock.
Setting Recurring Summer Time Hours
To set recurring Summer Time Hours:
1. In the System Information section of the Web Agent window, click System
Clock. The System Clock dialog box opens.