Clock Protocol - HPE D6020 Maintenance And Service Manual

<Sysname> clock datetime 8:10 2016/1/1
Related commands

clock protocol

clock summer-time
clock timezone
display clock
clock protocol
Use clock protocol to specify the system time source.
Use undo clock protocol to restore the default.
Syntax
clock protocol { none | ntp}
undo clock protocol
Default
The device uses the NTP time source.
Views
System view
Predefined user roles
network-admin
Parameters
none: Uses the system time set by using the clock datetime command.
ntp: Uses NTP to obtain the UTC time. You must configure NTP correctly. For more information
about NTP and NTP configuration, see Network Management and Monitoring Configuration Guide.
Usage guidelines
Correct system time is essential to network management and communication. You must configure
the system time correctly before you run the device on the network.
The device can use the locally set system time, or obtain the UTC time from an NTP source and
calculate the system time.
•
If you configure the clock protocol none and clock datetime commands in turn, the device
uses the locally set system time. The device then uses the clock signals generated by its built-in
crystal oscillator to maintain the system time.
•
If you configure the clock protocol ntp command, the device obtains the UTC time through
NTP and calculates the system time. The device then periodically synchronizes the UTC time
and recalculates the system time. For more information about NTP, see Network Management
and Monitoring Configuration Guide.
If you execute this command multiple times, the most recent configuration takes effect.
Examples
# Configure the device to use the local UTC time.
<Sysname> system-view
[Sysname] clock protocol none
280