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Cisco Bug: CSCuq69858 - STP stability issues at scale

Last Modified

Feb 13, 2018

Products (8)

  • Cisco Nexus 7000 Series Switches
  • Cisco Nexus 7000 10-Slot Switch
  • Cisco Nexus 7000 4-Slot Switch
  • Cisco Nexus 7700 6-Slot Switch
  • Cisco Nexus 7000 18-Slot Switch
  • Cisco Nexus 7700 18-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch
  • Cisco Nexus 7000 9-Slot Switch

Known Affected Releases

6.2(8a)

Description (partial)

Symptom:
L2 instabilities are seen at large scale STP (~800 vlans with Rapid-PVST) in 2 VDCs connected by VPC. BPDUs are intermittently lost.

Conditions:
Large scale STP setup, like 500+ active vlans with STP running on them, many such l2 ports, etc.
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Bug Details Include

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