Wi-Fi Client Connectivity Failures in Large Client Environments

Confidentiality Level: Aruba Customers & Partners only | Rev-1 (September 01, 2021)

Products covered

Mobility Conductor (formerly Mobility Master) and Mobility Controller

Summary

Aruba has received reports of Wi-Fi devices experiencing connectivity (association) failures in large client environments. The Wi-Fi devices connectivity failures are experienced only during high bursts of client roaming events. The bursts of roaming events result in high CPU utilization by the Station Management (STM) process in the Mobility Controller(s).
Please refer to the ‘Affected Products’ and ‘How to Determine if you are Impacted’ - sections below for details on the extent of these failures in your network.
If impacted, please refer to the Resolution and Workaround sections for applicable remediation steps.

Mobility Conductors & Controllers (HW and Virtual) running the following ArubaOS 8 versions:

  • 8.3.0.12 and above
  • 8.5.0.5 and above
  • 8.6.0.0 and above
  • 8.7.0.0 and above
  • 8.8.0.0 and above
  • 8.9.0.0 and above

For more information you can reed this document (PDF)