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Cisco Bug: CSCvs46631 - ewlc:seeing Policy parameter mismatch delete reason with overnight test run

Last Modified

Aug 29, 2020

Products (78)

  • Cisco IOS
  • Cisco Catalyst 9300-48U-A Switch
  • Cisco Catalyst 9300-48P-A Switch
  • Cisco Catalyst 9400 Supervisor Engine-1XL-Y
  • Cisco Catalyst C9500-32QC Switch
  • Cisco Catalyst 9300-48UXM-A Switch
  • Cisco Catalyst 9300-48UN-A Switch
  • Cisco Catalyst 9300-48T-A Switch
  • Cisco Catalyst 9300L-48P-4X-A Switch
  • Cisco Catalyst 9410R Switch
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Known Affected Releases

17.1.1 Amsterdam-17.2.1

Description (partial)

Symptom:
ewlc:seeing Policy parameter mismatch delete reason with overnight test run

Conditions:
ewlc:seeing Policy parameter mismatch delete reason with overnight test run

Build:BLD_V171_1_THROTTLE_LATEST_20191208_003156

issue:
seeing Policy parameter mismatch delete reason with overnight test run. 

step followed:

1. have ewlc with HA
2. 2700 sim aps
3. 27000 client with 11000 dot1x,5000 Lwa in web-auth pending state, 5000 CWA in web-auth pending state, 3000 eap-fast,3000 11r client
4. start auto roam with 25 cps in all asim/tsim
5. trigger 1st sso
6. after 1 hour or so trigger 2nd sso.
7. after 1 hour or so trigger 3rd sso.
8. keep setup for long duration. < -- here seeing  Policy parameter mismatch delete reason        

smananiewlcscale1#show wireless stats client delete reasons | exclude 0
Total client delete reasons                                            
---------------------------                                            
Controller deletes
---------------------------
---------------------------
WPA key exchange timeout                                        : 46
wrong replay counter                                            : 16
Policy parameter mismatch                                       : 71
L3-AUTH connection timeout                                      : 278376
IP-LEARN connection timeout                                     : 66
----------------------------
Informational Delete Reason
-----------------------------
-----------------------------
-----------------------------
Client initiate delete
-----------------------------
-----------------------------
AP Deletes
-----------------------------

smananiewlcscale1#

logs at below location.
/auto/newproj1/smanani/smananiewlcscale1_trace_archive-20191211-131849.tar and attached running config
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