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Cisco Bug: CSCvs98528 - Cat9k WLC - WNCD crash on invalid DAO with roaming of long duration fabric clients

Last Modified

Sep 15, 2020

Products (1)

  • Cisco Catalyst 9800 Series Wireless Controllers

Known Affected Releases

17.2.1

Description (partial)

Bug and its fix are on internal code flow. There is nothing that customer can do to prevent this problem.

Symptom:
Cat9k running affected code may experience a reboot, leaving a system report file and logs indicating the "wncd(_0)" process crashed. The core file within this system report may be decoded into a signature that matches this bug.

Conditions:
A scaled up fabric domain with large number of APs and map server connection flapping.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
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