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Cisco Bug: CSCuj94804 - Top0/12 interface was not selected even though PTP is in Phase Aligned

Last Modified

Jan 31, 2017

Products (16)

  • Cisco ASR 901 Series Aggregation Services Routers
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ASR 901S-4SG-F-D Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ASR 901S-2SG-F-D Router
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901-6CZ-FT-A Router
  • Cisco ASR 901-12C-FT-D Router
  • Cisco ASR 901-6CZ-FT-D Router
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Known Affected Releases


Description (partial)

Symptom: The top0/12 interface was not selected even though PTP is in Phase Aligned.
Conditions: This symptom occurs under the following conditions:

1. Configure the normal PTP OC master. The unit is expected to send clockclass 58. Unit is runs with internal clock source(QL-SEC).
2. Configure 1PPS and ToD. The OC master is still expected to send QL-DNU.
3. Configure a network freq source with the same QL as the internal clock that is QL-sec. Now the PTP clock class does not change the clock class accordingly. If any other QL other than the QL-sec is received, the clock class is updated correctly.
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