WLC 5508 loss configration after force switchover

[John.lc]

WLC Release ：8.3

WLC in HA SSO Status，Primary (Active) issue 'redundancy force-switchover'  command , and reload enter the status as below.

(Cisco Controller) >show redundancy summary 

            Redundancy Mode = SSO ENABLED 

                Local State = ACTIVE 

                 Peer State = STANDBY HOT 

                       Unit = Secondary (Inherited AP License Count = 100)

                    Unit ID = XX:XX:XX:XX:XX:XX

           Redundancy State = SSO

               Mobility MAC = XX:XX:XX:XX:XX:XX

            BulkSync Status = Complete

Average Redundancy Peer Reachability Latency = 462 Micro Seconds

Average Management Gateway Reachability Latency = 509 Micro Seconds

But the Secondary( Active ) issue 'redundancy force-switchover' loss the configuration after wlc reload.

(Cisco Controller) 

Welcome to the Cisco Wizard Configuration Tool

Use the '-' character to backup

Would you like to terminate autoinstall? [yes]: yes

System Name [Cisco_00:50:56] (31 characters max): 
...

I would like to know if this is an accidental event, or the force switchover command cannot be executed on the Secondary (Active role), or is it a software problem?

[Rps-Cheers]

 Issue a command redundancy force-switchover on Active controller. This command will trigger manual switchover where Active controller will reboot and Standby controller will take over the network. In this case Run state client on Active WLC will not be de-authenticated. The command save config is initiated before redundancy force-switchover command.

I didn’t find any instructions that you can’t type the ‘redundancy force-switchover’ command on the Secondary device. If you save the configuration before restarting, I think this may be a one-time phenomenon.

[John.lc]

Yes, i have issue 'y' to save the configuration..

(Cisco Controller) >redundancy force-switchover

This will reload the active unit and force a switch of activity. Are you sure? (y/N) y

[Leo Laohoo]

What is the exact version? 

It could be a bug.

I have done multiple failovers and I have never encountered this behaviour.

[John.lc]

HI Leo,

it should be RElease 8.3.122
Loading primary image (8.3.122.0)

[John.lc]

I have tried to search, but i didn't find any bug about this... Any ideas ?

[Leo Laohoo]

Put the two back into HA and upgrade that ancient firmware.

[John.lc]

ok, many thanks.

[Rps-Cheers · Accepted solution]

So, final suggset.
1st. ignore it, may be a one-time issue. you can keep monitor
2nd. it's not a stable release, you could upgrade it to suggest release, and Release 8.3.150 and 8.3.143 could be download from Cisco, but i would like you upgrade to 8.5.182 or 8.5.182.7 ( you can refer to cisco suggest release and doc show this)

[Rich R]

Just to second the suggestions already made - you need to upgrade!
8.3.150.0 if you have old APs which aren't supported on 8.5, otherwise 8.5.182.7.

See TAC recommended link below and refer field notices and compatibility matrix.

And just because it let you issue the command on the standby doesn't mean you should.  In future only issue it on the active WLC which is where it's intended to be used!