Procedure 7-10: Set date and time
Before you begin
Prior to performing this procedure, refer to Before you begin and Required equipment in this chapter.
Select a source for your time setting. If you are manually setting the date and time, determine the correct time from an established source. If you are using NTP, identify the NTP server(s) to be used as source.
If you are using NTP, it is assumed that IP Routing has already been established or else each node has its own IP address.
Also, if you are using NTP, you will need to know the UTC Offset (UTCo) for the time zone in which the NTP client is located.
Default (Non-NTP) Method for Time and Date Synchronization
Upon initial system turnup, the date and time revert to January 1, 1970 (70-01-01) at midnight (00:00:00). Determine the correct time from an established source and manually set the date and time.
After initial system turnup if a system reset occurs, the system restores the current time.
NTP Method for Time and Date Synchronization
Upon initial system turnup or following a system reset, the date and time revert to January 1, 1970 (70-01-01) at midnight (000000). The NE (NTP client) queries for date and time from an NTP server (a list of NTP servers is maintained on the NE). NTP uses the Coordinated Universal Time (UTC) for synchronization.
For subsequent synchronization, the NTP client monitors all the NTP servers to determine the most reliable clock and compares the time reported with its current time (reliability is determined by clock selection procedures which include accessibility). If the time differs by more than the allowable amount of drift, it resets the time. The Alcatel-Lucent 1665 DMXtend NTP client adjusts its clock in small steps (gradually) or in a single step depending upon the significance of the offset from the system clock.
Steps
Complete the following steps to set the system time and date:
1 |
Do you plan to use the Network Time Protocol?
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2 |
From the System View menu, select Administration → Set Date and Time. Result: The Set Date and Time window opens. | ||||||
3 |
From the Date panel, select the Year and Month from the pull-down menus. Result: A calendar is displayed for the month and year selected. | ||||||
4 |
Click on the date from the calendar. | ||||||
5 |
You can provision the time format display for your WaveStar® CIT from the Network View by selecting View → Preferences and clicking on the Display tab. This screen allows you to choose your preference for time format, either a 12-hour clock or a 24-hour clock.
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6 |
Click OK. Result: The new date and time appear in the lower right hand corner of the WaveStar® CIT System View. Stop! End of Procedure. | ||||||
7 |
From the System View menu, select Administration → Set Network Time Protocol. Result: The Provision Network Time Protocol Server window opens. | ||||||
8 |
From the Network Time Protocol panel, select Disabled. Important! Disabling NTP prevents the NE from receiving NTP information from the designated NTP server but allows you to enter provisionable data. | ||||||
9 |
From the Coordinated Universal Time Offset panel, enter the number of hours and minutes from the pull-down menus to indicate the time difference from the UTC to the NTP client. Then select plus (+) or minus (-) to indicate the direction of change. Important! In regions that observe Daylight Saving's Time, the Offset will need to be adjusted by one hour each time the time changes. | ||||||
10 |
From the Time Change Threshold panel, select a number between 1 and 499. The number may be selected by sliding the pointer until the desired number appears in the box to the left, or by simply typing the desired number into the box. The number entered represents the number of milliseconds of clock adjustment that will generate an autonomous message to the WaveStar® CIT and OS. This message indicates that a significant time change has occurred and usually only appears at startup or system reset. Important! Do not press Enter/Return on the keyboard if you opt to type in the number. | ||||||
11 |
From the Maximum Adjustment Threshold Milliseconds panel, select a number between 500 and 10,000 (default is 1000). The number may be selected by sliding the pointer until the desired number appears in the box to the left, or by simply typing the desired number into the box. The number entered represents the number of milliseconds of clock adjustment that will generate an autonomous message. This message indicates that certain scheduled operations may be effected (for example, performance monitoring), and usually only occurs at startup or system reset. Important! Do not press Enter/Return on the keyboard if you opt to type in the number. | ||||||
12 |
From the Poll Interval panel, select a Minimum Poll Interval (seconds) and a Maximum Poll Interval (seconds) from the pull-down menus. These numbers represent the least and most amount of time between the NTP client's queries to the server. Allowable values are between 16 and 16384 (seconds) and increment by powers of two (16, 32, 64... 16384). The default minimum is 64 seconds and the default maximum is 1024 seconds. Selecting a higher minimum interval reduces the traffic generated by the poll. The poll interval gradually increases towards the maximum interval so long as the changes to the NE clock remain small and infrequent. If the changes to the clock become large and/or frequent, the poll interval shifts towards the minimum interval. NTP determines the interval that best maintains synchronization between the client and the server. | ||||||
13 |
From the Network Element's NTP Server(s) panel, enter the IP address(es) of up to three known NTP Servers (It is recommended that a minimum of two servers be entered). NTP ranks these servers based upon availability and dependability. When a query is issued, NTP first attempts to synchronize with the most recently accessed server, and if it is unavailable, the query is issued to the highest ranked available server. Note: There is no auto-discovery for NTP servers. This list must be entered and changed, manually. Click the Add NTP Server button at the bottom of the screen. Enter the IP address of the server (each segment of the address should be entered in a separate box, sequentially across the screen). Click OK. Note: To remove an NTP server from the list, click to highlight one of the IP addresses in the NTP Server(s) IP Address(es) list. Click on Delete NTP Server button at the bottom of the screen. | ||||||
14 |
Once you have completed the NTP form, click Apply. | ||||||
15 |
From the Network Time Protocol panel, select Enabled. You will not be able to enter provisionable data while Enabled is selected. Important! In order for NTP parameter changes to take effect, the NTP has to be disabled and then re-enabled. | ||||||
16 |
Click Apply and then Close. | ||||||
17 |
If required, select Administration → View Network Time Protocol and verify NTP status. End of steps |