High Availability issues
Outputs to check Key Performance Indicators (KPIs) to identify if there could be any High Availability issue:
Check uptime for redundancy peers, and if there is any redundancy event
show redundancy | i ptime
sh log | i REDUNDANCY
Additional logs to collect for High Availability issues
show redundancy states
show redundancy counters
show redundancy switchover history
sh logging onboard uptime !!just for physical WLCs: 9800-40/9800-80/9800-L
show chassis ha-status active
show chassis ha-status standby
sh platform software stack-mgr chassis active R0 sdp-counters
sh platform software stack-mgr chassis standby R0 sdp-counters
sh platform software stack-mgr chassis active R0 peer-timeout
sh platform software stack-mgr chassis standby R0 peer-timeout
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