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Cisco Bug: CSCup33000 - PVST BPDUs dropped on Nexus 9300 40G ports

Last Modified

Nov 27, 2020

Products (5)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 9508 Switch
  • Cisco Nexus 93128TX Switch

Known Affected Releases

6.1(2)I2(2)

Description (partial)

Symptom:
Nexus 9300 reports 0 BPDUs received on PVST vlans from 6500
This causes a STP dispute on the 6500 side when the 6500 should be root

Conditions:
Using 40G connection between 6500 and Nexus 9300
Interface connection is trunk and the switches are running PVST
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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