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  1. Red Hat OpenStack Services on OpenShift
  2. OSPRH-19342

Duplicate GARP packets and split-brain scenario after failed amphora failover in A/S topology

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Major Major
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    • rhos-17.1.3
    • openstack-octavia
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      To Reproduce Steps to reproduce the behavior:

      N/A

      Expected behavior

      • Octavia loadbalancer VIP address is configured on only one of the amphoras and loadbalancer should not cause loop in the network switch .

      Bug impact

      • This behavior is causing a complete outage in the network; it happened two times in the customer environment,  so we need to prioritize this. The customer kept EP loop protection in disable mode, which they can't keep for a longer time. Even they cannot run LBs with unexpected behavior, which can start any time.

      Known workaround

      • Successfully failover the problematic loadbalancers 

              rhn-support-gthiemon Gregory Thiemonge
              rhn-support-visinha Vishal Sinha
              rhos-dfg-networking-squad-vans
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                Created:
                Updated: