Configuring SNTP

Use the following procedure to configure Simple Network Time Protocol (SNTP).

About this task

You can configure the switch clock to SNTP, configure the SNTP server IP addresses, and configure the SNTP synchronization intervals.

Procedure

  1. From the navigation tree, double-click Edit.
  2. In the Edit tree, click SNTP/Clock.
  3. In the work area, click the Simple Network Time Protocol tab.
  4. In the PrimaryServerInetAddressType field, click a radio button to select IPv4 or IPv6.
  5. In the PrimaryServerInetAddress field, type the primary IP address.
  6. In the SecondaryServerInetAddressType field, click a radio button to select IPv4 or IPv6.
  7. In the SecondaryServerInetAddress field, type the secondary IP address.
  8. In the State field, click a radio button.
  9. In the SyncInterval field, type a value.
  10. In the ManualSyncRequest field, click the radio button to synchronize the switch clock with the NTP server.
  11. On the toolbar, click Apply.

Variable definitions

The following table describes configuring SNTP.

Variable Value
PrimaryServerInetAddressType Specifies the IP address type of the primary SNTP server. Values include IPv4 or IPv6.
PrimaryServerInetAddress Specifies the IP address of the primary SNTP server.
SecondaryServerInetAddressType Specifies the IP address type for the secondary SNTP server. Values include IPv4 or IPv6.
SecondaryServerInetAddress Specifies the IP address of the secondary SNTP server.
State Specifies if SNTP is used to synchronize the switch clock to the Coordinated Universal Time (UTC)
  • disabled — the switch cannot synchronize the clock using SNTP.

  • enabled (unicast) — the switch synchronizes to UTC on boot when network access is available, and periodically synchronizes based on the Sync Interval.

SynchInterval Specifies the frequency, in hours, to attempt synchronization with the NTP servers. Values range from 0 to 168. 0 indicates to synchronize only during boot.
ManualSyncRequest Specifies to immediately attempt a synchronization with the NTP servers.
LastSyncTime Indicates the last synchronization time in UTC.
LastSyncSourceInetAddressType Indicates the IP source address type of the NTP server during the last synchronization.
LastSyncSourceInetAddress Indicates the IP source address of the NTP server during the last synchronization.
NextSyncTime Indicates the next scheduled synchronization time in UTC.
PrimaryServerSyncFailures Indicates the number of times the switch failed to synchronize with the primary server address. Synchronization with the secondary server can still occur.
SecondaryServerSyncFailures Indicates the number of times the switch failed to synchronize with the secondary server address.
CurrentTime Indicates the current switch time in UTC.