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NTP server is rejected due to excessive skew

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ontap-9
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core
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Applies to

  • ONTAP 9
  • Network Time Protocol (NTP)

Issue

  • NTP server is rejected due to excessive skew, however, the same NTP server is selected by another node:

Cluster::> cluster time-service ntp status show

Node: Node-01
Server                  Reachable  Selection State                Offset (ms)
----------------------- ---------  ------------------------------ ------------
10.XX.XX.70                 true  Server Rejected for Excessive          3.56
                                   Skew
10.XX.XX.100                true  Server Rejected for Excessive          2.94
                                   Skew
10.XX.XX.101                true  Currently Selected Server              3.53

Node: Node-02
Server                  Reachable  Selection State                Offset (ms)
----------------------- ---------  ------------------------------ ------------
10.XX.XX.70                 true  Candidate Server                       0.33
10.XX.XX.100                true  Currently Selected Server             -0.29
10.XX.XX.101                 true  Candidate Server                      -0.63

  • The selection state of the servers keeps changing every time the cluster time-service ntp status show command is run.

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