Configure NTP Globally

You can use the following procedure to globally enable NTP.

You can also enable master mode on the NTP server configured on the switch. When the master mode is configured, peers can synchronize themselves with the local clock when the NTP server loses synchronization or if an external NTP source is not reachable.

Before you begin

You must globally disable NTP before you change the version.

Procedure

  1. In the navigation pane, expand Configuration > Edit > NTP.
  2. Select General.
  3. Select the Globals tab.
  4. Select Enable.
  5. Enter a time interval.
  6. Optional: To configure the switch as an NTP server, in the NTP Master section, select Enable.
  7. In the Stratum field, enter a value.
  8. Select Apply.

Globals Field Descriptions

Use data in the following table to use the Globals tab.

NTP Client section:

Name

Description

Enable

Enables the client NTP server. By default, NTP is disabled.

Interval

Specifies the time interval between successive NTP updates as a power of 2 in seconds.

The default value for NTPv4 is 2 to the power of 8 seconds.

NTP Master section:

Name

Description

Enable

Enables master mode for the configured NTP server. The default value is disabled.

Stratum

Specifies the stratum for the master NTP server. The default value is 10.

Note:

If a better stratum is available, it is preferred over what is configured.