Cisco Bug: CSCvv92048 - 3-Node Keepalived Duplicate VIP Condition
Oct 22, 2020
- Cisco DNA Center
Known Affected Releases
Symptom: A duplicate virtual IP address (VIP) condition may be observed on a newly installed 3-node Cisco DNA Center cluster when one network interface cannot reach (via ICMP) at least one identical interface on any other node in the cluster. Joining nodes to a cluster and enabling high availability while a duplicate VIP condition exists should not be possible. If this does occur, symptoms such as external authentication randomly working, or Assurance information being inaccurate, will be observed, especially if static routes exist on these duplicated VIP interfaces. For example, if non-cluster port enp9s0 interfaces cannot communicate, due to separate VLANs or some misconfiguration, a duplicate VIP condition can be seen. Conditions: This was observed in Cisco DNA Center 188.8.131.52 and 184.108.40.206.
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