Switch User Manual

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sntp trusted-key
The sntp trusted-key Global Configuration mode command authenticates the identity of a system
to which Simple Network Time Protocol (SNTP) will synchronize. To disable authentication of the
identity of the system, use the
no form of this command.
Syntax
sntp trusted-key key-number
no sntp trusted-key key-number
• key-number— Key number of authentication key to be trusted. (Range: 1 - 4294967295)
Default Configuration
Not trusted.
Command Mode
Global configuration mode
User Guidelines
• The command is relevant for both received unicast and broadcast.
• If there is at least 1 trusted key, then unauthenticated messages will be ignored.
Examples
The following example authenticates key 8.
sntp client poll timer
The sntp client poll timer Global Configuration mode command sets the polling time for the
Simple Network Time Protocol (SNTP) client. To return to default, use the
no form of this
command.
Syntax
sntp client poll timer seconds
no sntp client poll timer
• seconds— Polling interval in seconds (Range: 60-86400)
Console(config)# sntp authentication-key 8 md5 ClkKey
Console(config)# sntp trusted-key 8
Console(config)# sntp authenticate