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WLC 9800-80 HA switchover happening daily.

pannick
Level 1
Level 1

Hey Gang,

 Here is a new one that we are troubleshooting. Maybe someone has ran in to this. We have a pair of 9800-80 WLCs running in HA that we have been slowly migrating to from our 8540s. The 9800 system is doing an HA switchover daily, sometimes twice. We have a TAC open but so far no positive answer or reason for the issue.

Not sure if this is a bug or not.

Thanks 

We are running code version - 17.9.3. We have 2700,3700,3800 & 9130 AP in our environment.

CWW#show redundancy switchover history
Index Previous Current Switchover Switchover
active active reason time
----- -------- ------- ---------- ----------
4 1 2 Active lost GW 09:28:35 Eastern Thu May 11 2023
5 2 1 Active lost GW 16:48:19 Eastern Thu May 11 2023
6 1 2 Active lost GW 21:33:38 Eastern Thu May 11 2023
7 2 1 Active lost GW 06:53:46 Eastern Fri May 12 2023
8 1 2 Active lost GW 11:08:00 Eastern Fri May 12 2023
9 2 1 Active lost GW 13:07:08 Eastern Fri May 12 2023
10 1 2 Active lost GW 14:08:03 Eastern Fri May 12 2023
11 2 1 Active lost GW 11:09:42 Eastern Sat May 13 2023
12 1 2 Active lost GW 21:04:17 Eastern Sat May 13 2023
13 2 1 Active lost GW 06:32:07 Eastern Sun May 14 2023

11 Replies 11

eglinsky2012
Spotlight
Spotlight

I'm on the same hardware and software, no switchover issues. What is the topology of the WLC uplinks? Do they uplink to the same VSS/StackWise switch or different switches? Any strange logs in the switch(es)?