Example:
Suppose TimeP is running as the switch's time synchronization protocol, with DHCP as the TimeP mode, and the
factory-default polling interval. You would halt time synchronization with this command:
switch(config)# no timesync
If you then viewed the TimeP configuration, you would see the following:
TimeP with time synchronization disabled
switch(config)# show timep
Timep Configuration
Time Sync Mode: Disabled
TimeP Mode : DHCP Poll Interval (min): 720
Disabling the TimeP mode
Syntax:
no ip timep
Disables TimeP by changing the TimeP mode configuration to Disabled and prevents the switch from using it as
the time synchronization protocol, even if it is the selected Time Sync Method option.
Example:
If the switch is running TimeP in DHCP mode, no ip timep changes the TimeP configuration as shown below
and disables time synchronization. Even though the TimeSync mode is set to TimeP, time synchronization is
disabled because no ip timep has disabled the TimeP mode parameter.
Disabling time synchronization by disabling the TimeP mode parameter
switch(config)# no ip timep
switch(config)# show timep
Timep Configuration
Time Sync Mode: Timep
TimeP Mode : Disabled
SNTP unicast time polling with multiple SNTP servers
When running SNTP unicast time polling as the time synchronization method, the switch requests a time update
from the server you configured with either the Server Address parameter in the menu interface, or the primary
server in a list of up to three SNTP servers configured using the CLI. If the switch does not receive a response
from the primary server after three consecutive polling intervals, the switch tries the next server (if any) in the list.
If the switch tries all servers in the list without success, it sends an error message to the Event Log and
reschedules to try the address list again after the configured Poll Interval time has expired.
If there are already three SNTP server addresses configured on the switch, and you want to use the CLI to
replace one of the existing addresses with a new one, you must delete the unwanted address before you
configure the new one.
Chapter 2 Time Protocols 37