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Cisco Bug: CSCvs52655 - C9800: 'show wlan <ID> client stats' outputs wrong WLAN with similar WLAN-name on special conditions

Last Modified

Aug 29, 2020

Products (6)

  • Cisco Catalyst 9800 Series Wireless Controllers
  • Cisco Catalyst 9800-40 Wireless Controller
  • Cisco Catalyst 9800-L-C Wireless Controller
  • Cisco Catalyst 9800-80 Wireless Controller
  • Cisco Catalyst 9800-L-F Wireless Controller
  • Cisco Catalyst 9800-CL Wireless Controller for Cloud

Known Affected Releases

16.12.1

Description (partial)

Symptom:
C9800 command 'show wlan <ID> client stats' outputs the info of another WLAN (and not the one of the ID used in the command) where WLAN-name starts with same name-characters and other special conditions (like amount of WLANs, order of the WLANs, and others).

Example where command is used to display client stats for WLAN ID-1, but WLC outputs info for WLAN ID-2:

C9800#show wlan summary

Number of WLANs: 2

ID   Profile Name                     SSID                             Status Security                                     
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1    atest123                         atest123                         DOWN   [WPA2][802.1x][AES]                          
2    atest123r                        atest123r                        DOWN   [WPA2][802.1x][AES]                          

C9800#show wlan id 1 client stats
Wlan Profile Name: atest123r, Wlan Id: 2
Current client state statistics:
---------------------------------------

Conditions:
- C9800 running 16.12.1 and probably other older and newer codes.
- Two WLANs with a name that starts with a similar name before specific characters.
- Trigger also depends on amount of WLANs or order of the WLANs.
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