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  1. OpenShift Bugs
  2. OCPBUGS-76651

4.22 PTP BC unexpected HOLDOVER after trasmitter goes down

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      Description of problem:

      In BC HA topology tests, bringing BC's transmitter down/up triggers a role re-election event on the receiver. (SLAVE -> LISTENING on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES, LISTENING -> MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES). 
      Under current timer sensitivity and port-role layout, this transition chain results in HOLDOVER publication in cloud events.

      Version-Release number of selected component (if applicable):

          https://art-build-history-art-build-history.apps.artc2023.pc3z.p1.openshiftapps.com/build?nvr=ose-linuxptp-daemon-container-v4.22.0-202601221547.p2.g2dc3908.assembly.stream.el9&record_id=8023b141-acdf-0f62-31d0-114f72db1f12&group=openshift-4.22&outcome=success&type=image

      How reproducible:

          TBD

      Steps to Reproduce:

          1.Deploy BC/OC HA PTP setup (profiles bc1, bc2, boundary-ha, OC slaves).     
          2.Run transmitter interface-down/up recovery scenario for BC [Test ID 49734].     
          3.Observe cloud-event stream around role transition and state-change events.     

      Actual results:

          HOLDOVER event is emitted/published after the LISTENING -> MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES transition chain.

      Expected results:

          No HOLDOVER event for this specific BC interface-down/up scenario per test expectation.
          What is the specification around 'ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES'?

      Additional info:

       

              jacding@redhat.com Jack Ding
              rh-ee-dpopsuev Daniel Popsuevich
              Daniel Popsuevich Daniel Popsuevich
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                Created:
                Updated: