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[Archive] Do Juniper WLC devices which are running MSS support 'leap second' NTP adjustments?



Article ID: KB24122 KB Last Updated: 10 Oct 2020Version: 2.0
This article provides information about the support extended by wireless WLC devices, which are running MSS, for Network Time Protocol (NTP) 'leap second' adjustments.
  • The NTP protocol supports a concept of 'leap seconds', in which the time needs to be adjusted to either add or subtract an additional second to the amount of time in a day.

  •  The NTP protocol will advertise upcoming leap events with the usage of a leap indication bit in the NTP packet.
  • By default, Juniper WLC devices support the processing of NTP packets, which contain leap indication bits; however, the WLC devices do not currently process the leap event.

  • If the leap indication bit is set to add or delete a second, no processing is performed.

  • After the leap event is passed, the WLC will re-synchronize with the NTP server to the correct time at the next sync interval.

  • Currently, WLC devices do not provide configuration commands to further configure or enable/disable leap second support.
Modification History:
2020-10-10: Archived article.
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