During the PTP verification test with 4.16.38 ocp version, an offset spike occurred on the second NIC, causing it to go into FREERUN status, and immediately the status of all NICs changed to FREERUN.
------------------------
2025-05-14T03:34:04.777837949+00:00 stdout F ts2phc[158897.775]: [ts2phc.0.config:6] /dev/ptp0 offset          0 s2 freq      -0
2025-05-14T03:34:04.777978876+00:00 stderr F I0514 03:34:04.777943   14642 stats.go:61] state updated for ts2phc =s2
2025-05-14T03:34:04.778423243+00:00 stdout F ts2phc[158897.775]: [ts2phc.0.config:7] adding tstamp 1747193681.000000000 to clock /dev/ptp0
2025-05-14T03:34:04.778484105+00:00 stdout F ts2phc[158897.775]: [ts2phc.0.config:7] adding tstamp 1747193681.000000000 to clock /dev/ptp1
2025-05-14T03:34:04.778528826+00:00 stdout F ts2phc[158897.775]: [ts2phc.0.config:7] adding tstamp 1747193681.000000001 to clock /dev/ptp3
2025-05-14T03:34:04.778528826+00:00 stdout F ts2phc[158897.775]: [ts2phc.0.config:7] nmea delay: 321247879 ns
2025-05-14T03:34:04.778642351+00:00 stdout F ts2phc[158897.775]: [ts2phc.0.config:6] /dev/ptp3 offset -999999999 s2 freq -100000000
2025-05-14T03:34:04.778681171+00:00 stdout F GM (Grand Master Clock) (State:FreeRun)
2025-05-14T03:34:04.778681171+00:00 stdout F *├── ClockClass (State:6)
2025-05-14T03:34:04.778681171+00:00 stdout F *├── OVER-ALL-TS2PHC (State:FreeRun)
2025-05-14T03:34:04.778681171+00:00 stdout F *    ├── ts2phc (State:Locked)
2025-05-14T03:34:04.778681171+00:00 stdout F *        └── State: Locked Iface: ens1f0  Offset -1410
2025-05-14T03:34:04.778681171+00:00 stdout F *    ├── ts2phc (State:FreeRun)
2025-05-14T03:34:04.778681171+00:00 stdout F *        └── State: FreeRun Iface: ens3f0  Offset -999999999
2025-05-14T03:34:04.778681171+00:00 stdout F *    └── ts2phc (State:Locked)
2025-05-14T03:34:04.778681171+00:00 stdout F *        └── State: Locked Iface: ens2f0  Offset -958
2025-05-14T03:34:04.778681171+00:00 stdout F *├── OVER-ALL-DPLL (State:Locked)
2025-05-14T03:34:04.778681171+00:00 stdout F *    ├── dpll (State:Locked)
2025-05-14T03:34:04.778681171+00:00 stdout F *        └── State: Locked Iface: ens1f0  Offset 5
2025-05-14T03:34:04.778681171+00:00 stdout F *    ├── dpll (State:Locked)
2025-05-14T03:34:04.778681171+00:00 stdout F *        └── State: Locked Iface: ens3f0  Offset -2
2025-05-14T03:34:04.778776845+00:00 stdout F *    └── dpll (State:Locked)
2025-05-14T03:34:04.778776845+00:00 stdout F *        └── State: Locked Iface: ens2f0  Offset -3
2025-05-14T03:34:04.778776845+00:00 stdout F *└── GNSS (State:Locked)
2025-05-14T03:34:04.778729275+00:00 stderr F I0514 03:34:04.778629   14642 stats.go:61] state updated for ts2phc =s0
2025-05-14T03:34:04.778729275+00:00 stderr F I0514 03:34:04.778684   14642 event.go:676] clock class change request from 6 to 248
2025-05-14T03:34:04.778729275+00:00 stderr F I0514 03:34:04.778697   14642 event.go:693] PTP State: GM State s0, Clock Class 248 Time 2025-05-14 03:34:04.778696906 +0000 UTC m=+158817.171667398 sourceLost false
2025-05-14T03:34:04.778776845+00:00 stdout F *    └── dpll (State:Locked)
2025-05-14T03:34:04.778776845+00:00 stdout F *        └── State: Locked Iface: ens2f0  Offset -3
2025-05-14T03:34:04.778776845+00:00 stdout F *└── GNSS (State:Locked)
2025-05-14T03:34:04.778803272+00:00 stderr F I0514 03:34:04.778723   14642 pmc.go:65] pmc -u -b 0 -f /var/run/ptp4l.0.config "GET GRANDMASTER_SETTINGS_NP"
2025-05-14T03:34:04.779048261+00:00 stdout F ts2phc[158897.776]: [ts2phc.0.config:6] /dev/ptp1 offset -1000000000 s2 freq -100000000
2025-05-14T03:34:04.779190367+00:00 stderr F I0514 03:34:04.779172   14642 stats.go:61] state updated for ts2phc =s0
2025-05-14T03:34:04.779249979+00:00 stdout F GM (Grand Master Clock) (State:FreeRun)
2025-05-14T03:34:04.779249979+00:00 stdout F *├── GNSS (State:Locked)
2025-05-14T03:34:04.779249979+00:00 stdout F *├── ClockClass (State:248)
2025-05-14T03:34:04.779249979+00:00 stdout F *├── OVER-ALL-TS2PHC (State:FreeRun)
2025-05-14T03:34:04.779249979+00:00 stdout F *    ├── ts2phc (State:FreeRun)
2025-05-14T03:34:04.779249979+00:00 stdout F *        └── State: FreeRun Iface: ens3f0  Offset -999999999
2025-05-14T03:34:04.779249979+00:00 stdout F *    ├── ts2phc (State:FreeRun)
2025-05-14T03:34:04.779249979+00:00 stdout F *        └── State: FreeRun Iface: ens2f0  Offset -1000000000
2025-05-14T03:34:04.779249979+00:00 stdout F *    └── ts2phc (State:Locked)
2025-05-14T03:34:04.779249979+00:00 stdout F *        └── State: Locked Iface: ens1f0  Offset -1410
2025-05-14T03:34:04.779249979+00:00 stdout F *└── OVER-ALL-DPLL (State:Locked)
2025-05-14T03:34:04.779249979+00:00 stdout F *    ├── dpll (State:Locked)
2025-05-14T03:34:04.779249979+00:00 stdout F *        └── State: Locked Iface: ens3f0  Offset -2
2025-05-14T03:34:04.779249979+00:00 stdout F *    ├── dpll (State:Locked)
2025-05-14T03:34:04.779249979+00:00 stdout F *        └── State: Locked Iface: ens2f0  Offset -3
2025-05-14T03:34:04.779249979+00:00 stdout F *    └── dpll (State:Locked)
2025-05-14T03:34:04.779249979+00:00 stdout F *        └── State: Locked Iface: ens1f0  Offset 5
2025-05-14T03:34:04.779327304+00:00 stderr F I0514 03:34:04.779242   14642 event.go:676] clock class change request from 6 to 248
2025-05-14T03:34:04.779451657+00:00 stdout F ts2phc[158897.776]: [ts2phc.0.config:6] /dev/ptp0 offset -1000000000 s2 freq -100000000
2025-05-14T03:34:04.779525129+00:00 stdout F GM (Grand Master Clock) (State:FreeRun)
2025-05-14T03:34:04.779525129+00:00 stdout F *├── ClockClass (State:248)
2025-05-14T03:34:04.779525129+00:00 stdout F *├── OVER-ALL-TS2PHC (State:FreeRun)
2025-05-14T03:34:04.779525129+00:00 stdout F *    ├── ts2phc (State:FreeRun)
2025-05-14T03:34:04.779525129+00:00 stdout F *        └── State: FreeRun Iface: ens3f0  Offset -999999999
2025-05-14T03:34:04.779525129+00:00 stdout F *    ├── ts2phc (State:FreeRun)
2025-05-14T03:34:04.779525129+00:00 stdout F *        └── State: FreeRun Iface: ens2f0  Offset -1000000000
2025-05-14T03:34:04.779525129+00:00 stdout F *    └── ts2phc (State:FreeRun)
2025-05-14T03:34:04.779525129+00:00 stdout F *        └── State: FreeRun Iface: ens1f0  Offset -1000000000
2025-05-14T03:34:04.779525129+00:00 stdout F *├── OVER-ALL-DPLL (State:Locked)
2025-05-14T03:34:04.779525129+00:00 stdout F *    ├── dpll (State:Locked)
2025-05-14T03:34:04.779525129+00:00 stdout F *        └── State: Locked Iface: ens2f0  Offset -3
2025-05-14T03:34:04.779525129+00:00 stdout F *    ├── dpll (State:Locked)
2025-05-14T03:34:04.779525129+00:00 stdout F *        └── State: Locked Iface: ens3f0  Offset -2
2025-05-14T03:34:04.779525129+00:00 stdout F *    └── dpll (State:Locked)
2025-05-14T03:34:04.779525129+00:00 stdout F *        └── State: Locked Iface: ens1f0  Offset 5
2025-05-14T03:34:04.779525129+00:00 stdout F *└── GNSS (State:Locked)
2025-05-14T03:34:04.779635431+00:00 stderr F I0514 03:34:04.779448   14642 stats.go:61] state updated for ts2phc =s0
2025-05-14T03:34:04.779635431+00:00 stderr F I0514 03:34:04.779492   14642 event.go:676] clock class change request from 6 to 248
2025-05-14T03:34:04.779635431+00:00 stderr F E0514 03:34:04.779505   14642 event.go:688] clock class request busy updating previous request, will try next event
2025-05-14T03:34:04.820192764+00:00 stdout F phc2sys[158897.817]: [ptp4l.0.config:6] CLOCK_REALTIME phc offset  -4025329 s2 freq -4031192 delay    526
2025-05-14T03:34:04.882808673+00:00 stdout F phc2sys[158897.880]: [ptp4l.0.config:6] CLOCK_REALTIME phc offset -10009294 s2 freq -11222756 delay    554
2025-05-14T03:34:04.945435402+00:00 stdout F phc2sys[158897.942]: [ptp4l.0.config:6] CLOCK_REALTIME phc offset -15509239 s2 freq -19725489 delay    559
2025-05-14T03:34:05.002159484+00:00 stdout F ts2phc[158897.999]: [ts2phc.0.config:7] adding tstamp 1747193682.022016032 to clock /dev/ptp0
2025-05-14T03:34:05.002281105+00:00 stdout F ts2phc[158897.999]: [ts2phc.0.config:7] adding tstamp 1747193682.022065222 to clock /dev/ptp1
2025-05-14T03:34:05.002409538+00:00 stdout F ts2phc[158897.999]: [ts2phc.0.config:7] adding tstamp 1747193682.022104706 to clock /dev/ptp3
2025-05-14T03:34:05.002549203+00:00 stdout F ts2phc[158897.999]: [ts2phc.0.config:7] nmea delay: 321247879 ns
2025-05-14T03:34:05.002824263+00:00 stdout F ts2phc[158897.999]: [ts2phc.0.config:6] /dev/ptp3 offset   22104706 s2 freq +22104706
2025-05-14T03:34:05.003088068+00:00 stdout F ts2phc[158898.000]: [ts2phc.0.config:6] /dev/ptp1 offset   22065222 s2 freq +22065222
2025-05-14T03:34:05.003262517+00:00 stderr F I0514 03:34:05.003230   14642 stats.go:61] state updated for ts2phc =s0
2025-05-14T03:34:05.003315995+00:00 stderr F I0514 03:34:05.003259   14642 event.go:425] dpll State s2, gnss State s2, tsphc state s0, gm state s0,
2025-05-14T03:34:05.003410967+00:00 stderr F I0514 03:34:05.003273   14642 event.go:676] clock class change request from 6 to 248
2025-05-14T03:34:05.003454786+00:00 stderr F E0514 03:34:05.003411   14642 event.go:688] clock class request busy updating previous request, will try next event
2025-05-14T03:34:05.003611723+00:00 stdout F GM[1747193645]:[ts2phc.0.config] ens1f0 T-GM-STATUS s0
2025-05-14T03:34:05.003679312+00:00 stderr F I0514 03:34:05.003618   14642 stats.go:61] state updated for ts2phc =s0
2025-05-14T03:34:05.003728409+00:00 stderr F I0514 03:34:05.003676   14642 event.go:676] clock class change request from 6 to 248
2025-05-14T03:34:05.003876638+00:00 stdout F ts2phc[158898.001]: [ts2phc.0.config:6] /dev/ptp0 offset   22016032 s2 freq +22016032
2025-05-14T03:34:05.003961585+00:00 stderr F I0514 03:34:05.003942   14642 stats.go:61] state updated for ts2phc =s0
2025-05-14T03:34:05.004065418+00:00 stderr F I0514 03:34:05.004025   14642 event.go:676] clock class change request from 6 to 248
2025-05-14T03:34:05.004065418+00:00 stderr F E0514 03:34:05.004044   14642 event.go:688] clock class request busy updating previous request, will try next event
2025-05-14T03:34:05.004273528+00:00 stderr F E0514 03:34:05.004066   14642 event.go:688] clock class request busy updating previous request, will try next event
2025-05-14T03:34:05.008154207+00:00 stdout F phc2sys[158898.005]: [ptp4l.0.config:6] CLOCK_REALTIME phc offset -20439257 s2 freq -29308279 delay    557
2025-05-14T03:34:05.070732767+00:00 stdout F phc2sys[158898.068]: [ptp4l.0.config:6] CLOCK_REALTIME phc offset -19605479 s2 freq -34606278 delay    560
2025-05-14T03:34:05.133378458+00:00 stdout F phc2sys[158898.130]: [ptp4l.0.config:6] CLOCK_REALTIME phc offset -16177216 s2 freq -37059658 delay    573
2025-05-14T03:34:05.160322403+00:00 stdout F ts2phc[158898.157]: [ts2phc.0.config:7] nmea sentence: GNRMC,033405.00,A,3715.35579,N,12703.14484,E,0.000,,140525,,,A,V
2025-05-14T03:34:05.160693145+00:00 stdout F ts2phc[158898.157]: [ts2phc.0.config:7] nmea sentence: GNGGA,033405.00,3715.35579,N,12703.14484,E,1,12,99.99,53.4,M,18.8,M,,
2025-05-14T03:34:05.196031492+00:00 stdout F phc2sys[158898.193]: [ptp4l.0.config:6] CLOCK_REALTIME phc offset -12607596 s2 freq -38343203 delay    565
2025-05-14T03:34:05.258650480+00:00 stdout F phc2sys[158898.256]: [ptp4l.0.config:6] CLOCK_REALTIME phc offset  -8968301 s2 freq -38486187 delay    574
2025-05-14T03:34:05.280147359+00:00 stderr F I0514 03:34:05.280075   14642 pmc.go:95] pmc result: sending: GET GRANDMASTER_SETTINGS_NP
2025-05-14T03:34:05.280147359+00:00 stderr F    507c6f.fffe.53b0a0-0 seq 0 RESPONSE MANAGEMENT GRANDMASTER_SETTINGS_NP
2025-05-14T03:34:05.280147359+00:00 stderr F            clockClass              6
2025-05-14T03:34:05.280147359+00:00 stderr F            clockAccuracy           0x27
2025-05-14T03:34:05.280147359+00:00 stderr F            offsetScaledLogVariance 0x4e5d
2025-05-14T03:34:05.280147359+00:00 stderr F            currentUtcOffset        37
2025-05-14T03:34:05.280147359+00:00 stderr F            leap61                  0
2025-05-14T03:34:05.280147359+00:00 stderr F            leap59                  0
2025-05-14T03:34:05.280147359+00:00 stderr F            currentUtcOffsetValid   1
2025-05-14T03:34:05.280147359+00:00 stderr F            ptpTimescale            1
2025-05-14T03:34:05.280147359+00:00 stderr F            timeTraceable           1
2025-05-14T03:34:05.280147359+00:00 stderr F            frequencyTraceable      1
2025-05-14T03:34:05.280147359+00:00 stderr F            timeSource              0x20
2025-05-14T03:34:05.284147573+00:00 stderr F I0514 03:34:05.284057   14642 pmc.go:135] pmc result: sending: SET GRANDMASTER_SETTINGS_NP
2025-05-14T03:34:05.284147573+00:00 stderr F    507c6f.fffe.53b0a0-0 seq 0 RESPONSE MANAGEMENT GRANDMASTER_SETTINGS_NP
2025-05-14T03:34:05.284147573+00:00 stderr F            clockClass              248
2025-05-14T03:34:05.284147573+00:00 stderr F            clockAccuracy           0x27
2025-05-14T03:34:05.284147573+00:00 stderr F            offsetScaledLogVariance 0xffff
2025-05-14T03:34:05.284147573+00:00 stderr F            currentUtcOffset        37
2025-05-14T03:34:05.284147573+00:00 stderr F            leap61                  0
2025-05-14T03:34:05.284147573+00:00 stderr F            leap59                  0
2025-05-14T03:34:05.284147573+00:00 stderr F            currentUtcOffsetValid   1
2025-05-14T03:34:05.284147573+00:00 stderr F            ptpTimescale            1
2025-05-14T03:34:05.284147573+00:00 stderr F            timeTraceable           0
2025-05-14T03:34:05.284147573+00:00 stderr F            frequencyTraceable      1
2025-05-14T03:34:05.284147573+00:00 stderr F            timeSource              0xa0
2025-05-14T03:34:05.284220271+00:00 stdout F ptp4l[158898.281]: [ptp4l.0.config:5] port 1 (ens1f0): assuming the grand master role
2025-05-14T03:34:05.284596969+00:00 stderr F I0514 03:34:05.284571   14642 event.go:940] received ts2phc.0.config,248,GM
2025-05-14T03:34:05.284623361+00:00 stdout F ptp4l[1747193645]:[ts2phc.0.config] CLOCK_CLASS_CHANGE 248

    ptp-operator-4.16.0-202503121138

    Not sure.

# ptpConfig - grandmaster
---
apiVersion: ptp.openshift.io/v1
kind: PtpConfig
metadata:
  name: grandmaster
  namespace: openshift-ptp
spec:
  profile:
  - name: grandmaster
    phc2sysOpts: -r -u 0 -m -N 8 -R 16 -S 2 -s ens1f0 -n 24
    plugins:
      e810:
        enableDefaultConfig: false
        pins:
          ens1f0:
            SMA1: 2 1
            SMA2: 2 2
            U.FL1: 0 1
            U.FL2: 0 2
          ens2f0:
            SMA1: 1 1
            SMA2: 1 2
            U.FL1: 0 1
            U.FL2: 0 2
          ens3f0:
            SMA1: 1 1
            SMA2: 1 2
            U.FL1: 0 1
            U.FL2: 0 2
        settings:
          LocalHoldoverTimeout: 14400
          LocalMaxHoldoverOffSet: 1500
          MaxInSpecOffset: 1500
        ublxCmds:
        - args:
          - -P
          - "29.20"
          - -z
          - CFG-HW-ANT_CFG_VOLTCTRL,1
          reportOutput: false
        - args:
          - -P
          - "29.20"
          - -e
          - GPS
          reportOutput: false
        - args:
          - -P
          - "29.20"
          - -d
          - Galileo
          reportOutput: false
        - args:
          - -P
          - "29.20"
          - -d
          - GLONASS
          reportOutput: false
        - args:
          - -P
          - "29.20"
          - -d
          - BeiDou
          reportOutput: false
        - args:
          - -P
          - "29.20"
          - -d
          - SBAS
          reportOutput: false
        - args:
          - -P
          - "29.20"
          - -t
          - -w
          - "5"
          - -v
          - "1"
          - -e
          - SURVEYIN,600,50000
          reportOutput: true
        - args:
          - -P
          - "29.20"
          - -p
          - MON-HW
          reportOutput: true
        - args:
          - -P
          - "29.20"
          - -p
          - CFG-MSG,1,38,248
          reportOutput: true
        - args:
          - -P
          - "29.20"
          - -p
          - CFG-MSG,0xf0,0x02,0
          reportOutput: false
        - args:
          - -P
          - "29.20"
          - -p
          - CFG-MSG,0xf0,0x03,0
          reportOutput: false
    ptp4lConf: |
      [ens1f0]
      masterOnly 1
      [ens1f1]
      masterOnly 1
      [ens1f2]
      masterOnly 1
      [ens1f3]
      masterOnly 1
      [ens2f0]
      masterOnly 1
      [ens2f1]
      masterOnly 1
      [ens2f2]
      masterOnly 1
      [ens2f3]
      masterOnly 1
      [ens3f0]
      masterOnly 1
      [ens3f1]
      masterOnly 1
      [ens3f2]
      masterOnly 1
      [ens3f3]
      masterOnly 1
      [global]
      #
      # Default Data Set
      #
      twoStepFlag 1
      slaveOnly 0
      priority1 128
      priority2 128
      domainNumber 24
      #utc_offset 37
      clockClass 6
      clockAccuracy 0x27
      offsetScaledLogVariance 0xFFFF
      free_running 0
      freq_est_interval 1
      dscp_event 0
      dscp_general 0
      dataset_comparison G.8275.x
      G.8275.defaultDS.localPriority 128
      #
      # Port Data Set
      #
      logAnnounceInterval -3
      logSyncInterval -4
      logMinDelayReqInterval -4
      logMinPdelayReqInterval 0
      announceReceiptTimeout 3
      syncReceiptTimeout 0
      delayAsymmetry 0
      fault_reset_interval -4
      neighborPropDelayThresh 20000000
      masterOnly 0
      G.8275.portDS.localPriority 128
      #
      # Run time options
      #
      assume_two_step 0
      logging_level 6
      path_trace_enabled 0
      follow_up_info 0
      hybrid_e2e 0
      inhibit_multicast_service 0
      net_sync_monitor 0
      tc_spanning_tree 0
      tx_timestamp_timeout 50
      unicast_listen 0
      unicast_master_table 0
      unicast_req_duration 3600
      use_syslog 1
      verbose 0
      summary_interval -4
      kernel_leap 1
      check_fup_sync 0
      clock_class_threshold 7
      #
      # Servo Options
      #
      pi_proportional_const 0.0
      pi_integral_const 0.0
      pi_proportional_scale 0.0
      pi_proportional_exponent -0.3
      pi_proportional_norm_max 0.7
      pi_integral_scale 0.0
      pi_integral_exponent 0.4
      pi_integral_norm_max 0.3
      step_threshold 2.0
      first_step_threshold 0.00002
      clock_servo pi
      sanity_freq_limit 200000000
      ntpshm_segment 0
      #
      # Transport options
      #
      transportSpecific 0x0
      ptp_dst_mac 01:1B:19:00:00:00
      p2p_dst_mac 01:80:C2:00:00:0E
      udp_ttl 1
      udp6_scope 0x0E
      uds_address /var/run/ptp4l
      #
      # Default interface options
      #
      clock_type BC
      network_transport L2
      delay_mechanism E2E
      time_stamping hardware
      tsproc_mode filter
      delay_filter moving_median
      delay_filter_length 10
      egressLatency 0
      ingressLatency 0
      boundary_clock_jbod 1
      #
      # Clock description
      #
      productDescription ;;
      revisionData ;;
      manufacturerIdentity 00:00:00
      userDescription ;
      # timeSource 0xA0 means internal oscillator, 0x20 means GPS
      timeSource 0x20
    ptp4lOpts: -2 --summary_interval -4
    ptpClockThreshold:
      holdOverTimeout: 240
      maxOffsetThreshold: 1500
      minOffsetThreshold: -1500
    ptpSchedulingPolicy: SCHED_FIFO
    ptpSchedulingPriority: 10
    ptpSettings:
      logReduce: "true"
    ts2phcConf: |
      [nmea]
      ts2phc.master 1
      [global]
      use_syslog  0
      verbose 1
      logging_level 7
      ts2phc.pulsewidth 100000000
      leapfile  /usr/share/zoneinfo/leap-seconds.list
      #GNSS module s /dev/ttyGNSS* -al use _0
      ts2phc.nmea_serialport  /dev/gnss0
      ts2phc.nmea_delay -100000000
      [ens1f0]
      ts2phc.extts_polarity rising
      ts2phc.extts_correction 0
      [ens2f0]
      ts2phc.extts_polarity rising
      #ts2phc.extts_correction -10
      ts2phc.master 0
      [ens3f0]
      ts2phc.extts_polarity rising
      #ts2phc.extts_correction -10
      ts2phc.master 0
    ts2phcOpts: ' '
  recommend:
  - match:
    - nodeLabel: node-role.kubernetes.io/master
    priority: 4
    profile: grandmaster    

FreeRun

  Locked or Holdover 

 HPE ProLiant DL110 Gen11/ProLiant DL110 Gen11