Configuring SNTP

This section provides details for the configuration of SNTP on the S- K- and 7100-Series products.

Default SNTP Parameters lists SNTP parameters and their default values.

Default SNTP Parameters

Parameter	Description	Default Value
SNTP authentication mode	Specifies whether authentication for all SNTP client communications is enabled or disabled.	disabled
SNTP authentication trust	Specified whether the trust state of an existing SNTP authentication key is enabled or disabled. Must be enabled for the SNTP authentication to occur.	disabled
SNTP mode	Specifies whether the current SNTP state is broadcast, unicast, or disabled.	disabled
unicast server precedence	Specifies a value that determines the order in which SNTP servers are polled if the precedence values are not the same.	1 (highest precedence)
broadcast delay	Specifies the propagation delay added to the time sent to the client in broadcast listening mode.	3000 milliseconds
poll-interval	Specifies the interval between unicast SNTP requests by the client to the server.	16 seconds
poll-retry	Specifies the number of times the client will resend the SNTP request to the server before moving on to the next server.	1
poll-timeout	Specifies the amount of time a client will wait for a response from the the SNTP server before retrying.	5 seconds
timezone offset	Specifies the offset in hours and minutes from UTC for this device	0 hours, 0 minutes

Configuring SNTP describes how configure SNTP. SNTP can be configured in any command mode.

Configuring SNTP

Setp	Task	Command(s)
1	Set the SNTP operation mode on the client.	set sntp client {broadcast | unicast | disable}
2	When operating in broadcast mode, optionally change the broadcast delay period in milliseconds to be added to the server time for this client.	set sntp broadcastdelay time
3	When operating in unicast mode, set the SNTP server(s) for this client, optionally specifying a precedence value per server.	set sntp server ip-address [precedence][key key-instance]
4	When operating in unicast mode, optionally change the poll interval between SNTP unicast requests.	set sntp poll-interval interval
5	When operating in unicast mode, optionally change the number of poll retries to a unicast SNTP server.	set sntp poll-retry retry
6	When operating in unicast mode, optionally change the poll timeout for a response to a unicast SNTP request.	set sntp poll-timeout timeout
7	Optionally, set the SNTP time zone name and the hours and minutes it is offset from Coordinated Universal Time (UTC). The daylight savings time function can be enabled and associated with the timezone set here using the set summertime command.	set timezone name [hours] [minutes]
8	Optionally, enable authentication for all SNTP client communications.	set sntp authentication mode {enable | disable}
9	Optionally, create a new or modify an existing SNTP authentication key.	set sntp authentication key key-instance type password
10	Optionally, change the SNTP authentication trust state for an authentication key.	set sntp authentication trust key-instance {enable | disable}

Managing and Displaying SNTP describes how to manage and display SNTP.

Managing and Displaying SNTP

Task	Command(s)
To display SNTP client settings:	show sntp
To set the SNTP client‘s operational mode to disable:	clear sntp client
To remove one or all servers from the SNTP server list:	clear sntp server {ip-address | all}
To reset the delay time for SNTP broadcast frames to its default value:	clear sntp broadcastdelay
To reset the poll interval between unicast SNTP requests to its default value:	clear sntp poll-interval
To reset the number of poll retries to a unicast SNTP server to its default value:	clear sntp poll-retry
To reset the SNTP poll timeout to its default value:	clear sntp poll-timeout
To display the current timezone setting:	show timezone
To remove the SNTP timezone adjustment values:	clear timezone
To clear SNTP authentication key configuration or reset the SNTP authentication mode to the default value:	clear sntp authentication {all | key key-instance | mode}