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vlan communication lost in EAPS environment, when CDP packet received over backup EAPS link

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Titlevlan communication lost in EAPS environment, when CDP packet received over backup EAPS link
Symptoms
traffic with destination MAC matching a device that sends CDP packets with that MAC as a source may be dropped
Environment
  • EXOS
  • firmware:
    • 15 branch: all up to 15.6.3.1-patch1-5
    • 16 branch: all up to 16.1.1
Cause
Source MAC addresses were learned through CDP packets received on EAPS/ERPS/STP-blocked ports and that causes traffic to be dropped.
Resolution
Upgrade to:
  • 15 branch: EXOS 15.6.3.1-patch1-8 or later
  • 16 branch: EXOS 16.1.2 or later
Additional notes

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