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Command Line Interface
4-58
4
Default Setting
Version number: 3
Command Mode
Global Configuration
Command Usage
• This command specifies time servers that the switch will poll for time updates
when set to NTP client mode. It issues time synchronization requests based
on the interval set with the ntp poll command. The client will poll all the time
servers configured, the responses received are filtered and compared to
determine the most reliable and accurate time update for the switch.
• You can configure up to 50 NTP servers on the switch. Re-enter this
command for each server you want to configure.
• NTP authentication is optional. If enabled with the ntp authenticate
command, you must also configure at least one key number using the ntp
authentication-key command.
•Use the no form of this command without an argument to clear all configured
servers in the list.
Example
Related Commands
ntp client (4-57)
ntp poll (4-58)
show ntp (4-60)
ntp poll
This command sets the interval between sending time requests when the switch is
set to NTP client mode. Use the no form to restore to the default.
Syntax
ntp poll seconds
no ntp poll
seconds - Interval between time requests. (Range: 16-16384 seconds)
Default Setting
16 seconds
Command Mode
Global Configuration
Console(config)#ntp server 192.168.3.20
Console(config)#ntp server 192.168.3.21
Console(config)#ntp server 192.168.4.22 version 2
Console(config)#ntp server 192.168.5.23 version 3 key 19
Console(config)#