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Cisco Bug: CSCvu37122 - WLC SSO pair - Standby down doesn't generate an alert in Cisco DNA Center Assurance

Last Modified

Jun 23, 2020

Products (1)

  • Cisco Network Integration Applications

Known Affected Releases

DNAC1.3.3.3

Description (partial)

Symptom:
Cisco DNA Center Assurance may not alert when a high availability pair of wireless LAN controllers running version 8.8.125.0 has their redundancy communication interrupted.  From the wireless LAN controller, the outage is clear in this sample output of "show redundancy summary." 

>show redundancy summary
            Redundancy Mode = SSO ENABLED
                Local State = ACTIVE
                 Peer State = UNKNOWN - Communication Down
                       Unit = Primary
                    Unit ID = xx:xx:xx:xx:xx:xx
           Redundancy State = Non Redundant
               Mobility MAC = xx:xx:xx:xx:xx:xx
               Redundancy Port  = UP
            BulkSync Status = Pending
               Link Encryption = ENABLED

Conditions:
This was observed in Cisco DNA Center 1.3.3.3, managing a pair of 3504 wireless LAN controllers running AireOS 8.8.125.0.
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