LevelOne GSW-2690 Manuale Utente

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User Manual 
Publication date: June, 2005 
Revision A1 
37 
 
3-1-3. Time Configuration
 
 
The switch provides manual and automatic ways to set the system time via 
NTP. Manual setting is simple and you just input “Year”, “Month”, “Day”, “Hour”, 
“Minute” and “Second” within the valid value range indicated in each item. If you 
input an invalid value, for example, 61 in minute, the switch will clamp the figure to 
59.   
NTP is a well-known protocol used to synchronize the clock of the switch 
system time over a network. NTP, an internet draft standard formalized in RFC 1305, 
has been adopted on the system is version 3 protocol. The switch provides four 
built-in NTP server IP addresses resided in the Internet and an user-defined NTP 
server IP address. The time zone is Greenwich-centered which uses the expression 
form of GMT+/- xx hours. 
Function name: 
Time  
Function description: 
Set the system time by manual input or set it by syncing from Time servers. 
The function also supports daylight saving for different area’s time adjustment. 
Parameter description: 
         Current Time: 
 
    Show the current time of the system. 
Manual: 
This is the function to adjust the time manually. Filling the valid figures in 
the fields of Year, Month, Day, Hour, Minute and Second respectively and 
press  <Apply>  button, time is adjusted. The valid figures for the 
parameter Year, Month, Day, Hour, Minute and Second are >=2000, 1-12, 
1-31, 0-23, 0-59 and 0-59 respectively.  Input the wrong figure and press 
<Apply> button, the device will reject the time adjustment request. There 
is no time zone setting in Manual mode. 
        Default:  Year = 2000,     Month = 1,    Day = 1 
   
     
Hour = 0, 
     Minute  = 0,  Second = 0