Cd9800 WLC setup with RP mode

[Leftz]

Hi We setup HA in C9800 with version 17.3.5a, and got error message with command show chassis. Please see the below. Does it miss some step? Thank you

ABC-WLC#sh chassis
Chassis/Stack Mac Address : 0822.2222.2221 - Local Mac Address
Mac persistency wait time: Indefinite
Local Redundancy Port Type: Twisted Pair
H/W Current
Chassis# Role Mac Address Priority Version State IP
-------------------------------------------------------------------------------------
*1 Active 0822.2222.2221 2 V02 Ready 192.0.168.1
2 Member 0822.2222.2222 1 V02 V-Mismatch 192.0.168.2

[MHM Cisco World · Accepted solution]

there are Software and Hardware version they must match.
the Hardware is mismatch here.

sh platform

[Leftz]

@MHM Cisco World Thank you for your reply! Its exactly same hardware and software

Maybe there is a patch SMU which was installed unsuccessfully. 

V-WLC#sh platform
Chassis type: C9800-L-F-K9

Slot Type State Insert time (ago)
--------- ------------------- --------------------- -----------------
0 C9800-L-F-K9 ok 1d21h
0/0 BUILT-IN-4x2_5GE ok 1d21h
0/1 BUILT-IN-2x10GE-F ok 1d21h
R0 C9800-L-F-K9 ok, active 1d21h
F0 C9800-L-F-K9 ok, active 1d21h
P0 PWR-12V ok 1d21h
P1 C9800-L-F-K9-FAN ok 1d21h

Slot CPLD Version Firmware Version
--------- ------------------- ---------------------------------------
0 19050918 16.12(3r)
R0 19050918 16.12(3r)
F0 19050918 16.12(3r)

V-WLC-2#sh platform
Chassis type: C9800-L-F-K9

Slot Type State Insert time (ago)
--------- ------------------- --------------------- -----------------
0 C9800-L-F-K9 ok 00:04:06
0/0 BUILT-IN-4x2_5GE ok 00:00:23
0/1 BUILT-IN-2x10GE-F ok 00:00:23
R0 C9800-L-F-K9 ok, active 00:04:06
F0 C9800-L-F-K9 ok, active 00:04:06
P0 PWR-12V ok 00:03:45
P1 C9800-L-F-K9-FAN ok 00:03:45

Slot CPLD Version Firmware Version
--------- ------------------- ---------------------------------------
0 19050918 16.12(3r)
R0 19050918 16.12(3r)
F0 19050918 16.12(3r)

[saitejatvn]

sh platform not working on  cisco 5520 controller

[Flavio Miranda]

Hi

  This can be related to packet.  Must be both bundle or install mode.

run "show version" on both sides.

[Leftz]

@Flavio Miranda Thank you very much for your reply. Yes you are right. one is INSTALL, and another is BUNDLE. Why it happen? Initially both are same. we did not change it, but just upgraded ios and added SMU

[Flavio Miranda · Accepted solution]

  I dont believe this change by itself. Was this devices upgrade recently?

 https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/217050-convert-installation-mode-between-instal.html 

[Leftz]

Thanks. HA can work after the change. but when testing it(disconnect and connect HA link) WLC reboot automatically. Is this normal? 

[Flavio Miranda · Accepted solution]

It is expected  reload during manual switchover with the command "redundancy force-switchover". Probably disconnecting the cable has the same effect.

"Manual Switchover
This is a user initiated forced switchover between the Active and Standby unit. The current Standby unit
becomes the new Active unit and when the failed system boots up, it will transition to Hot-Standby state.
To perform a manual switchover, execute the redundancy force-switchover command. This command
initiates a graceful switchover from the active to the standby controller. The active controller reloads and
the standby takes over as the New Active controller."

[Leftz]

Thank you Flavio!

[Leftz]

One more interesting question: after trying several times to disconnect and then connect HA cable, the Active one would take turn between the two WLC. Looks like the "Priority" value does not work. and do not know what decide which one would be Active in this case. Thanks

C#sh cha
Chassis/Stack Mac Address : 08xx.xxxx.xxxx - Local Mac Address
Mac persistency wait time: Indefinite
Local Redundancy Port Type: Twisted Pair
H/W Current
Chassis# Role Mac Address Priority Version State IP
-------------------------------------------------------------------------------------
*1 Active 08xx.xxxx.xxx1 2 V02 Ready 192.0.16.1
2 Standby 08xx.xxxx.xxx2 1 V02 Ready 192.0.16.2