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Cisco Bug: CSCut14146 - LEAP SECOND: Leap second update susceptibility.

Last Modified

Dec 31, 2016

Products (1)

  • Cisco Digital Content Manager (DCM) Software

Known Affected Releases

all_versions

Description (partial)

Symptom:
There are periodic leap second events which can add or delete a second to global time. When the leap second update occurs:

symptom 1: There is a small chance that the DCM chassis / MFP can lock up and reboot when the leap second is applied.

symptom 2: The ATSC STT table will be off by 1 extra second compared to before the leap second event

symptom 3: An ad insert scheduled during the timeframe of the transition can abort

Conditions:
The leap second update will be propagated via Network Time Protocol (NTP) or via manually setting the clock.

For symptom 1:
All D9900 or D9901 chassis running a software version lower than 11-10,
All D9900 or D9901 chassis containing an MFP and running a software version lower than 12-10,
All D9902 chassis running a software version lower than 12-10,

and have NTP synchronisation is enabled 24 hours in advance of the leap second event right up to the leap second event are susceptible to the possibility of this occurring.

For symptom 2:
All DCM running a software version lower than 16-10-00, configured to playout the STT table.

For symptom 3:
All DCM versions configured for ad insertion.
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