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Endsystems failed MAC Authentication on SecureStack A4

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TitleEndsystems failed MAC Authentication on SecureStack A4
Symptoms
  • End systems unable to MAC authenticate
  • No Radius packets sent from switch to Radius Server
Environment
  • SecureStack A4
  • EOS version 06.81.06.0002
  • MAC authentication
  • NetSight Policy Manager
  • NAC
  • STP
Cause
High levels of flooded multicast packets (1000s of packets per second) causing learning issues on the SecureStack A4 switch
Resolution
Additional notes

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