SNTP commands

sntp

Syntax

[no] sntp

Context

config>system>time

Platforms

Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode

Description

This command creates the context to edit the Simple Network Time Protocol (SNTP).

SNTP can be configured in either broadcast or unicast client mode. SNTP is a compact, client-only version of the NTP. SNTP can only receive the time from SNTP/NTP servers. It cannot be used to provide time services to other systems.

The system clock is adjusted automatically during system initialization and periodically to ensure that the local time is close to server’s time. However, if the time difference between the SNTP/NTP server and the system clock is more than 2.5 seconds, the software corrects the system time gradually adjusted over an interval.

SNTP is created in an administratively enabled state (no shutdown).

The no form of this command removes the SNTP instance and configuration. SNTP does not need to be administratively disabled when removing the SNTP instance and configuration.

Default

no sntp

broadcast-client

Syntax

[no] broadcast-client

Context

config>system>time>sntp

Platforms

Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode

Description

This command enables listening to SNTP/NTP broadcast messages on interfaces with broadcast client enabled at global device level.

If this global parameter is configured, the ntp-broadcast parameter must be configured on selected interfaces on which NTP broadcasts are transmitted.

SNTP must be shutdown prior to changing either to or from broadcast mode.

The no form of this command disables broadcast client mode.

Default

no broadcast-client

server-address

Syntax

server-address ip-address [version version-number] [normal | preferred]

[interval seconds]

no server-address

Context

config>system>time>sntp

Platforms

Supported on all 7210 SAS platforms as described in this document, including platforms configured in the access-uplink operating mode

Description

This command creates an SNTP server for unicast client mode.

Parameters

ip-address

Specifies the IP address of the SNTP server.

version version-number

Specifies the SNTP version supported by this server.

Values

1 to 3

Default

3

normal | preferred

Specifies the preference value for this SNTP server. When more than one time-server is configured, one server can have preference over others. The value for that server should be set to preferred. Only one server in the table can be a preferred server.

Default

normal

interval seconds

Specifies the frequency at which this server is queried.

Values

64 to 1024

Default

64