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Cisco Bug: CSCus61813 - loop in MST environment after ISSU 6.1(4)->6.2(8a)

Last Modified

Feb 04, 2017

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 7000 9-Slot Switch
  • Cisco Nexus 7700 10-Slot Switch

Known Affected Releases

6.2(8a)

Description (partial)

Symptom:
After upgrade  6.1(4)->6.2(8a), in a multi MST region environment, when the peers are not the root, Peer-link may go into Blocking.

Conditions:
*Upgrade  6.1(4)->6.2(8a)
* MST Environment
* Multiple MST regions
* VPC Environment
* MST0 root outside of vpc peers
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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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