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Time Protocols
SNTP: Viewing, Selecting, and Configuring
If the SNTP server you specify uses SNTP version 4 or later, use the sntp server
command to specify the correct version number. For example, suppose you
learned that SNTP version 4 was in use on the server you specified above (IP
address 10.28.227.141). You would use the following commands to delete the
server IP address and then re-enter it with the correct version number for that
server:
Figure 9-6. Example of Specifying the SNTP Protocol Version Number
Changing the SNTP Poll Interval.
Syntax: sntp poll-interval < 30 . . 720 >
Specifies how long the switch waits between time polling
intervals. The default is 720 seconds and the range is 30 to
720 seconds. (This parameter is separate from the poll
interval parameter used for Timep operation.)
For example, to change the poll interval to 300 seconds:
ProCurve(config)# sntp poll-interval 300
Disabling Time Synchronization Without Changing the SNTP
Configuration. The recommended method for disabling time synchroniza-
tion is to use the timesync command to avoid changing the switch’s SNTP
configuration.
Syntax: no timesync
Halts time synchronization without changing the switch’s
SNTP configuration
For example, suppose SNTP is running as the switch’s time synchronization
protocol, with Broadcast as the SNTP mode and the factory-default polling
interval. You would halt time synchronization with this command:
ProCurve(config)# no timesync
Deletes unicast SNTP server entry.
Re-enters the unicast server with a non-
default protocol version.
show sntp displays the result.
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