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Cisco Bug: CSCvu65500 - huge and irrelevant value displayed for call duration for few TSPEC clients - after few roams

Last Modified

Sep 30, 2020

Products (1)

  • Cisco Catalyst 9800 Series Wireless Controllers

Known Affected Releases

16.12.4

Description (partial)

Symptom:
Platform: C9800-CL
Release: 16.12.4
Image label: BLD_V1612_THROTTLE_LATEST_20200610_044243_V16_12_3_45_2
Regression: Yes

Topology: Topology:
C9800-CL - ISE, APs [C9115, C9120, AP2800, AP1852,…] - wireless -18+ clients
Image on C9800: BLD_V1612_THROTTLE_LATEST_20200610_044243_V16_12_3_45_2
AP version: 16.12.4.25
AP mode : Flex
Deployment type: Central authentication , local switching

FIPS/CC: Enabled
CAC: Enabled
Client types: 7925 phones [11a], Win laptop [intel], Zebra phone

Procedure followed
Step1: Bring up setup above setup, with 10+ dot1x TSPEC clients.
Step2: make calls between few TSPEC clients
Step3: Roam between APs
Step4: Periodically make a note on the output of cmd 'show wireless client calls active'
Expected: The call duration value must be reflecting the actual
Actual: for few clients, we notice huge and irrelevant value

Enclosed:
Run config, console logs, wncd logs for "set platform software trace wncd chassis active R0 ewlc-qos-voice"

Related output

vewlc-9.3.15.40#show wireless client calls active

Number of Active TSPEC calls on 802.11a and 802.11b/g : 9
Number of Active SIP calls on 802.11a and 802.11b/g   : 0

Client MAC      Call Duration    AP Name                  Radio Type    Call Type
-----------------------------------------------------------------------------------
0023.3341.9887   115             AP3800E-2-M1              802.11b/g     TSPEC     
1cdf.0f1f.def9   1592228765      AP3800E-2-M1              802.11a       TSPEC     
30f7.0d4c.edeb   40              AP3800E-2-M1              802.11b/g     TSPEC     
68ef.bdb3.908d   1592228765      C9115-1-M1                802.11a       TSPEC     
68ef.bdb3.9e13   115             AP3800E-2-M1              802.11b/g     TSPEC     

...
vewlc-9.3.15.40#

Conditions:
Topology: Topology:
C9800-CL - ISE, APs [C9115, C9120, AP2800, AP1852,…] - wireless -18+ clients
Image on C9800: BLD_V1612_THROTTLE_LATEST_20200610_044243_V16_12_3_45_2
AP version: 16.12.4.25
AP mode : Flex
Deployment type: Central authentication , local switching

FIPS/CC: Enabled
CAC: Enabled
Client types: 7925 phones [11a], Win laptop [intel], Zebra phone

Procedure followed
Step1: Bring up setup above setup, with 10+ dot1x TSPEC clients.
Step2: make calls between few TSPEC clients
Step3: Roam between APs
Step4: Periodically make a note on the output of cmd 'show wireless client calls active'
Expected: The call duration value must be reflecting the actual
Actual: for few clients, we notice huge and irrelevant value
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