Reference Guide

Time and Network Time Protocol (NTP) | 1435
clock update-calendar
c e s
Set the switch hardware clock based on the software clock.
Syntax
clock update-calendar
Defaults
Not configured.
Command Modes
EXEC Privilege
Command
History
Usage
Information
Use this command only if you are sure that the hardware clock is inaccurate and the software clock is
correct. You cannot delete this command (that is, there is not a “no” form of this command).
Related
Commands
debug ntp
c e s
Display Network Time Protocol (NTP) transactions and protocol messages for troubleshooting.
Syntax
debug ntp {adjust | all | authentication | events | loopfilter | packets | select | sync}
To disable debugging of NTP transactions, use the no debug ntp {adjust | all | authentication |
events | loopfilter | packets | select | sync} command.
Parameters
Command Modes
EXEC Privilege
Command
History
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
pre-Version 6.1.1.0 Introduced for E-Series
calendar set Set the hardware clock.
adjust Enter the keyword adjust to display information on NTP clock adjustments.
all Enter the keyword all to display information on all NTP transactions.
authentication Enter the keyword authentication to display information on NTP authentication
transactions.
events Enter the keyword events to display information on NTP events.
loopfilter Enter the keyword loopfilter to display information on NTP local clock frequency.
packets Enter the keyword packets to display information on NTP packets.
select Enter the keyword select to display information on the NTP clock selection.
sync Enter the keyword sync to display information on the NTP clock synchronization.
Version 7.6.1.0 Support added for S-Series
Version 7.5.1.0 Support added for C-Series
pre-Version 6.1.1.0 Introduced for E-Series